user/firefox-esr: Update to 128.4.0

Also, include a patch that makes it almost work in PPC64.

4 files changed, 816 insertions, 68 deletions

diff --git a/user/firefox-esr/APKBUILD b/user/firefox-esr/APKBUILD
index e90c1308c..7e57092b8 100644
--- a/user/firefox-esr/APKBUILD
+++ b/user/firefox-esr/APKBUILD
@@ -1,7 +1,7 @@
 # Contributor: Molly Miller <adelie@m-squa.red>
 # Maintainer: A. Wilcox <awilfox@adelielinux.org>
 pkgname=firefox-esr
-pkgver=128.1.0
+pkgver=128.4.0
 _llvmver=18
 pkgrel=0
 pkgdesc="Firefox web browser (extended support release)"
@@ -37,6 +37,7 @@ source="https://ftp.mozilla.org/pub/firefox/releases/$_ffxver/source/firefox-$_f
 	fix-seccomp-bpf.patch
 	icu-75.patch
 	jpeg-link.patch
+	js-endian.patch
 	mozilla-build-arm.patch
 	pmmx-double-format.patch
 	ppc32-fix.patch
@@ -154,22 +155,23 @@ package() {
 	EOF
 }
 
-sha512sums="8055a7f83acf0cab6124ba5809aff1c082e81a0d30ff318ec719f8fd3f4af9aa60e2094c1abd6c981193d751075a9569370176e20e50f3c1959fe27a15511388  firefox-128.1.0esr.source.tar.xz
+sha512sums="e720b1f993926d73f5a5727648f753176ac2fd093fb0b71393946bbc5919ce5fc7b88b82960bd1aa427b5663c7f659828dc6702485fc0c1e7a6961571c67faa3  firefox-128.4.0esr.source.tar.xz
 aaeec88eda3ca5ef00503f2e1656f8a143017d5ff60bd289ce7a49b7f8352ce5b61556c732e5eb3b6859e1c30551219eb5bbb954e9b88eca8d3f44683bdd747d  mozconfig
 1fff71be77aa34791ef8aa972b5dc5f131d79f4b895ebbfb59bc223078764d6f79c82a3a4e4c717a3893ecbe4907d556f27e97d2692e41f02365f06da759a71a  bad-google-code.patch
 5e6c3fa027052cc43ba161cf5c12016b07723e7c0b002a42431bbd5d716d512d5245ab6befbb56c37c7d244441533f810f4e7b583f83bbe965981931f1435a94  fix-mutex-build.patch
 9f2892eff9d09f3eed1f9a9ee98ba9c6a6826c30ccdeabfefb8733abc98e7b612418827262423568e830c6354a2b8242f471bc200b7079f21862bb00947da716  fix-seccomp-bpf.patch
 0a84e8cb6604fdb7601745b60c04ee74733632ada32bfd85eb32db8fee095cfb79c82033e5e3cf3bbc7b7f4df753e86ffe18e26e63a6603a93c3bb5a459aabd3  icu-75.patch
 a2400c8df888637d9ebe33d82dc2fb95792685c9938b5486230a5c15bc819cbb850a2bdcb54a775516652fc8ffd6b40f8c591ab7941211f9516064101380ebbf  jpeg-link.patch
+d40e6c1a6e62d5e1dc350dc0bbaf2b8488b19ea0911532784f1df1199a7a5af0aae81b0b0d77c4398a2d903d86b5560f4442386eb446d9af8d58e73eea475e4f  js-endian.patch
 9f5730ee3a29b86786089abcfffab32bf2210f1a1ec43260ae824a08acda687dbfa37306b82a4978dd022bcf747eab155f7f3c5f73a1375f1c3c4fcd106dae3e  mozilla-build-arm.patch
 1864c6c63c647f3ed1b3ca4df7f52a2c7ec4c65f2e067a9842d24a242f01e047d59ffbf88ad3740d830df1eb0bade929e245e640db135fe14f4c0d879269cb7e  pmmx-double-format.patch
 06a3f4ee6d3726adf3460952fcbaaf24bb15ef8d15b3357fdd1766c7a62b00bd53a1e943b5df7f4e1a69f4fae0d44b64fae1e027d7812499c77894975969ea10  ppc32-fix.patch
 e1c8a85c46a9cc804eb6b5946d35b63fa2cfc7ad8b4f250c5eaf1b590b139a66d9a833246bc26ae2e340fffb81b6761cf51c600181895bd49feb9a3b8fbfe331  rust-32bit.patch
 c2248297df00633771da7e6b9f2caba3dd5108d93617f652fa8b2fb4e6975821e5fee866c00713f8fce08e760fa456e2dd19a8ef7370e5a2c65dc09614526be9  shut-up-warning.patch
 11f7ce86376b54281082fa5b9d3fefee8046eabe38a0ec17266764b4f62cb90f4744245c1ca93d73ed74cf81c066dab7ddcb3fe9704be8f91e0a2a4f664b203a  skia-endian.patch
-79c0ca37cbb6ebffe8d59d5955045cf2d8016c1f81d6cc8fceb1474849079b927c8163e9ca6ba4e88c27193e270aaba3ac76ea9dcf19c3be49322c6d049c903b  skia-unified.patch
+8e155e5a883e26c9bc67b7d45ca7d36813b07723e0eff9d7bc5b696b6412354906bd645cd890b54de2af19c1f205ea7991bd32cde1a669224beedf539b93bd56  skia-unified.patch
 9df89366bd51670f534591e4c169186703ad3166a493f522e58f129fb79af375d71baaf0f6b238126792118a2d3ed0f011b010e39497ab5901ee5bea63a84fa2  stackwalk-x86-ppc.patch
-ebdc82ee06a0b649631758d9bb5a2c082e9e04dab06a633a7f0c00fad0fb6751d4b768f7ce3fe57f15e08144f26d91fc33229a1db87cdc683b37e1d0485ce76a  webrender.patch
+e1d9e30a1c8d1c6bdd3530183400d7d245e437ce18bb5b262bec1d01932b02b8eaededd892efcdd277eaccb357aede4537972382be9f00eedf1785acebbd1ca6  webrender.patch
 ed78e15030d79b10026ebae26e44a68d16c2a8567082072b5099b0dde4f79ae217a21737e0d9c7ec6a3cc99de3ab3c9083cca7d82889d559bb18cc15fa7e6f2a  without-jit.patch
 f3b7c3e804ce04731012a46cb9e9a6b0769e3772aef9c0a4a8c7520b030fdf6cd703d5e9ff49275f14b7d738fe82a0a4fde3bc3219dff7225d5db0e274987454  firefox.desktop
 5dcb6288d0444a8a471d669bbaf61cdb1433663eff38b72ee5e980843f5fc07d0d60c91627a2c1159215d0ad77ae3f115dcc5fdfe87e64ca704b641aceaa44ed  firefox-safe.desktop"
diff --git a/user/firefox-esr/js-endian.patch b/user/firefox-esr/js-endian.patch
new file mode 100644
index 000000000..44f21d2d1
--- /dev/null
+++ b/user/firefox-esr/js-endian.patch
@@ -0,0 +1,33 @@
+# HG changeset patch
+# User A. Wilcox <AWilcox@Wilcox-Tech.com>
+# Date 1729710191 18000
+#      Wed Oct 23 14:03:11 2024 -0500
+# Node ID 6102585e0d752de1729135d4c7d917e751b268c5
+# Parent  61f7d9c0998e2ce8008cd15b187f86dfdba21a26
+Bug 1926667 - Ensure JSStructuredCloneReader::readTransferMap respects endianness r?sfink
+
+Differential Revision: https://phabricator.services.mozilla.com/D226707
+
+diff --git a/js/src/vm/StructuredClone.cpp b/js/src/vm/StructuredClone.cpp
+--- a/js/src/vm/StructuredClone.cpp
++++ b/js/src/vm/StructuredClone.cpp
+@@ -3387,7 +3387,8 @@ bool JSStructuredCloneReader::readTransf
+   }
+ 
+   headerPos.write(
+-      PairToUInt64(SCTAG_TRANSFER_MAP_HEADER, SCTAG_TM_TRANSFERRING));
++      NativeEndian::swapToLittleEndian(
++          PairToUInt64(SCTAG_TRANSFER_MAP_HEADER, SCTAG_TM_TRANSFERRING)));
+ 
+   uint64_t numTransferables;
+   MOZ_ALWAYS_TRUE(in.readPair(&tag, &data));
+@@ -3512,7 +3513,8 @@ bool JSStructuredCloneReader::readTransf
+   MOZ_ASSERT(TransferableMapHeader(data) == SCTAG_TM_TRANSFERRING);
+ #endif
+   headerPos.write(
+-      PairToUInt64(SCTAG_TRANSFER_MAP_HEADER, SCTAG_TM_TRANSFERRED));
++      NativeEndian::swapToLittleEndian(
++          PairToUInt64(SCTAG_TRANSFER_MAP_HEADER, SCTAG_TM_TRANSFERRED)));
+ 
+   return true;
+ }
diff --git a/user/firefox-esr/skia-unified.patch b/user/firefox-esr/skia-unified.patch
index ad0f6d42b..cf74c1dcd 100644
--- a/user/firefox-esr/skia-unified.patch
+++ b/user/firefox-esr/skia-unified.patch
@@ -1,45 +1,786 @@
---- firefox-102.1.0/gfx/2d/DrawTargetSkia.cpp
-+++ firefox-102.1.0/gfx/2d/DrawTargetSkia.cpp
-@@ -155,8 +155,12 @@ }
-   return surfaceBounds.Intersect(bounds);
+This patch is not complete.
+
+It attempts to completely remove endian-specific surface formats from the
+entire tree, then replace it with a single swizzle in Skia.
+
+Most things are working, including most Web sites and graphics.  However,
+notably, native widgets (like menus, or 'Remember password?' popups) cause
+an assertion failure.
+
+We need to ship beta6 and this gets people a browser with many unfortunate
+caveats, which is better than no browser at all.
+
+I intend to remain working with upstream on finding a way forward with the
+overall idea of this patch and hope to land something eventually.
+
+diff --git a/dom/canvas/CanvasRenderingContext2D.cpp b/dom/canvas/CanvasRenderingContext2D.cpp
+--- a/dom/canvas/CanvasRenderingContext2D.cpp
++++ b/dom/canvas/CanvasRenderingContext2D.cpp
+@@ -383,7 +383,7 @@ class AdjustedTargetForFilter {
+     }
+ 
+     if (!mFinalTarget->CanCreateSimilarDrawTarget(mSourceGraphicRect.Size(),
+-                                                  SurfaceFormat::B8G8R8A8)) {
++                                                  SurfaceFormat::OS_RGBA)) {
+       mTarget = mFinalTarget;
+       mCtx = nullptr;
+       mFinalTarget = nullptr;
+@@ -391,7 +391,7 @@ class AdjustedTargetForFilter {
+     }
+ 
+     mTarget = mFinalTarget->CreateSimilarDrawTarget(mSourceGraphicRect.Size(),
+-                                                    SurfaceFormat::B8G8R8A8);
++                                                    SurfaceFormat::OS_RGBA);
+ 
+     if (mTarget) {
+       // See bug 1524554.
+@@ -419,7 +419,7 @@ class AdjustedTargetForFilter {
+     }
+ 
+     RefPtr<DrawTarget> dt = mFinalTarget->CreateSimilarDrawTarget(
+-        aRect.Size(), SurfaceFormat::B8G8R8A8);
++        aRect.Size(), SurfaceFormat::OS_RGBA);
+ 
+     if (dt) {
+       // See bug 1524554.
+@@ -516,7 +516,7 @@ class AdjustedTargetForShadow {
+     bounds.RoundOut();
+     if (!bounds.ToIntRect(&mTempRect) ||
+         !mFinalTarget->CanCreateSimilarDrawTarget(mTempRect.Size(),
+-                                                  SurfaceFormat::B8G8R8A8)) {
++                                                  SurfaceFormat::OS_RGBA)) {
+       mTarget = mFinalTarget;
+       mCtx = nullptr;
+       mFinalTarget = nullptr;
+@@ -524,7 +524,7 @@ class AdjustedTargetForShadow {
+     }
+ 
+     mTarget = mFinalTarget->CreateShadowDrawTarget(
+-        mTempRect.Size(), SurfaceFormat::B8G8R8A8, mSigma);
++        mTempRect.Size(), SurfaceFormat::OS_RGBA, mSigma);
+ 
+     if (mTarget) {
+       // See bug 1524554.
+@@ -2117,7 +2117,7 @@ CanvasRenderingContext2D::GetOptimizedSn
+ }
+ 
+ SurfaceFormat CanvasRenderingContext2D::GetSurfaceFormat() const {
+-  return mOpaque ? SurfaceFormat::B8G8R8X8 : SurfaceFormat::B8G8R8A8;
++  return mOpaque ? SurfaceFormat::OS_RGBX : SurfaceFormat::OS_RGBA;
  }
  
+ //
+@@ -5295,7 +5295,7 @@ static already_AddRefed<SourceSurface> E
+   }
+ 
+   RefPtr<DrawTarget> subrectDT = aTargetDT->CreateSimilarDrawTarget(
+-      roundedOutSourceRectInt.Size(), SurfaceFormat::B8G8R8A8);
++      roundedOutSourceRectInt.Size(), SurfaceFormat::OS_RGBA);
+ 
+   if (subrectDT) {
+     // See bug 1524554.
+@@ -6061,7 +6061,7 @@ void CanvasRenderingContext2D::DrawWindo
+       }
+     }
+     drawDT = gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
+-        dtSize, SurfaceFormat::B8G8R8A8);
++        dtSize, SurfaceFormat::OS_RGBA);
+     if (!drawDT || !drawDT->IsValid()) {
+       aError.Throw(NS_ERROR_FAILURE);
+       return;
+@@ -6315,7 +6315,7 @@ void CanvasRenderingContext2D::EnsureErr
+ 
+   RefPtr<DrawTarget> errorTarget =
+       gfxPlatform::GetPlatform()->CreateOffscreenCanvasDrawTarget(
+-          IntSize(1, 1), SurfaceFormat::B8G8R8A8);
++          IntSize(1, 1), SurfaceFormat::OS_RGBA);
+   MOZ_ASSERT(errorTarget, "Failed to allocate the error target!");
+ 
+   sErrorTarget.set(errorTarget.forget().take());
+@@ -6437,7 +6437,7 @@ void CanvasRenderingContext2D::PutImageD
+     dstData = lockedBits + dirtyRect.y * dstStride + dirtyRect.x * 4;
+   } else {
+     sourceSurface = Factory::CreateDataSourceSurface(
+-        dirtyRect.Size(), SurfaceFormat::B8G8R8A8, false);
++        dirtyRect.Size(), SurfaceFormat::OS_RGBA, false);
+ 
+     // In certain scenarios, requesting larger than 8k image fails.  Bug
+     // 803568 covers the details of how to run into it, but the full
+diff --git a/dom/canvas/ImageBitmap.cpp b/dom/canvas/ImageBitmap.cpp
+--- a/dom/canvas/ImageBitmap.cpp
++++ b/dom/canvas/ImageBitmap.cpp
+@@ -227,7 +227,7 @@ static already_AddRefed<DataSourceSurfac
+   // this rectangle are outside the area where the input bitmap was placed, then
+   // they will be transparent black in output."
+   // So, instead, we force the output format to be SurfaceFormat::B8G8R8A8.
+-  const SurfaceFormat format = SurfaceFormat::B8G8R8A8;
++  const SurfaceFormat format = SurfaceFormat::OS_RGBA;
+   const int bytesPerPixel = BytesPerPixel(format);
+   const IntSize dstSize =
+       IntSize(positiveCropRect.width, positiveCropRect.height);
+@@ -500,6 +500,11 @@ static already_AddRefed<layers::Image> C
+ 
+   // Convert RGBA to BGRA
+   RefPtr<DataSourceSurface> rgbaDataSurface = rgbaSurface->GetDataSurface();
++
++  if (SurfaceFormat::OS_RGBA == SurfaceFormat::R8G8B8A8) {
++    return CreateImageFromSurface(rgbaDataSurface);
++  }
++
+   DataSourceSurface::ScopedMap rgbaMap(rgbaDataSurface,
+                                        DataSourceSurface::READ);
+   if (NS_WARN_IF(!rgbaMap.IsMapped())) {
+@@ -724,7 +729,7 @@ SurfaceFromElementResult ImageBitmap::Su
+   bool requiresCrop = !allowUncropped && hasCropRect;
+   if (wantExactSize || requiresPremult || requiresCrop || mSurface) {
+     RefPtr<DrawTarget> dt = Factory::CreateDrawTarget(
+-        BackendType::SKIA, IntSize(1, 1), SurfaceFormat::B8G8R8A8);
++        BackendType::SKIA, IntSize(1, 1), SurfaceFormat::OS_RGBA);
+     sfer.mSourceSurface = PrepareForDrawTarget(dt);
+ 
+     if (!sfer.mSourceSurface) {
+@@ -831,7 +836,7 @@ already_AddRefed<SourceSurface> ImageBit
+     // black, even if the surface is opaque, so force to an alpha format in
+     // that case.
+     if (!surfPortion.IsEqualEdges(mPictureRect) && isOpaque) {
+-      format = SurfaceFormat::B8G8R8A8;
++      format = SurfaceFormat::OS_RGBA;
+     }
+ 
+     // If we need to pre-multiply the alpha, then we need to be able to
+diff --git a/dom/canvas/OffscreenCanvasDisplayHelper.cpp b/dom/canvas/OffscreenCanvasDisplayHelper.cpp
+--- a/dom/canvas/OffscreenCanvasDisplayHelper.cpp
++++ b/dom/canvas/OffscreenCanvasDisplayHelper.cpp
+@@ -181,7 +181,7 @@ bool OffscreenCanvasDisplayHelper::Commi
+ 
+   MutexAutoLock lock(mMutex);
+ 
+-  gfx::SurfaceFormat format = gfx::SurfaceFormat::B8G8R8A8;
++  gfx::SurfaceFormat format = gfx::SurfaceFormat::OS_RGBA;
+   layers::TextureFlags flags = layers::TextureFlags::IMMUTABLE;
+ 
+   if (!mCanvasElement) {
+@@ -207,7 +207,7 @@ bool OffscreenCanvasDisplayHelper::Commi
+ 
+   if (mData.mIsOpaque) {
+     flags |= layers::TextureFlags::IS_OPAQUE;
+-    format = gfx::SurfaceFormat::B8G8R8X8;
++    format = gfx::SurfaceFormat::OS_RGBX;
+   } else if (!mData.mIsAlphaPremult) {
+     flags |= layers::TextureFlags::NON_PREMULTIPLIED;
+   }
+diff --git a/gfx/2d/HelpersSkia.h b/gfx/2d/HelpersSkia.h
+--- a/gfx/2d/HelpersSkia.h
++++ b/gfx/2d/HelpersSkia.h
+@@ -26,6 +26,9 @@ namespace gfx {
+ static inline SkColorType GfxFormatToSkiaColorType(SurfaceFormat format) {
+   switch (format) {
+     case SurfaceFormat::B8G8R8A8:
 +#if MOZ_BIG_ENDIAN()
-+static const int kARGBAlphaOffset = 0;
-+#else
- static const int kARGBAlphaOffset =
-     SurfaceFormat::A8R8G8B8_UINT32 == SurfaceFormat::B8G8R8A8 ? 3 : 0;
++      //MOZ_DIAGNOSTIC_ASSERT(false, "wrong way unsupported by Skia");
 +#endif
+       return kBGRA_8888_SkColorType;
+     case SurfaceFormat::B8G8R8X8:
+       // We probably need to do something here.
+@@ -37,7 +40,9 @@ static inline SkColorType GfxFormatToSki
+     case SurfaceFormat::R8G8B8A8:
+       return kRGBA_8888_SkColorType;
+     case SurfaceFormat::A8R8G8B8:
++#if MOZ_LITTLE_ENDIAN()
+       MOZ_DIAGNOSTIC_ASSERT(false, "A8R8G8B8 unsupported by Skia");
++#endif
+       return kRGBA_8888_SkColorType;
+     default:
+       MOZ_DIAGNOSTIC_ASSERT(false, "Unknown surface format");
+@@ -49,20 +54,20 @@ static inline SurfaceFormat SkiaColorTyp
+     SkColorType aColorType, SkAlphaType aAlphaType = kPremul_SkAlphaType) {
+   switch (aColorType) {
+     case kBGRA_8888_SkColorType:
+-      return aAlphaType == kOpaque_SkAlphaType ? SurfaceFormat::B8G8R8X8
+-                                               : SurfaceFormat::B8G8R8A8;
++      return aAlphaType == kOpaque_SkAlphaType ? SurfaceFormat::OS_RGBX
++                                               : SurfaceFormat::OS_RGBA;
+     case kRGB_565_SkColorType:
+       return SurfaceFormat::R5G6B5_UINT16;
+     case kAlpha_8_SkColorType:
+       return SurfaceFormat::A8;
+     default:
+-      return SurfaceFormat::B8G8R8A8;
++      return SurfaceFormat::OS_RGBA;
+   }
+ }
  
- static bool VerifyRGBXFormat(uint8_t* aData, const IntSize& aSize,
-                              const int32_t aStride, SurfaceFormat aFormat) {
-# HG changeset patch
-# Parent  46ea866ca3acb8bb5e1709ceb799b9c94f591dec
-Problem description: Tab-titles that are too long to fit into a tab get faded out.
-                     On big endian this is broken and instead of fading out, the 
-                     tab gets white and the font transparent, leading to an unreadable
-                     tab-title
-Solution: This is not a real solution, but a hack. The real solution would have been
-          to byte-swap the correct buffer, but I could not find it.
-          So the next best thing is to deactivate the fading-effect. Now all tab-titles
-          are readable, albeit not as pretty to look at as they could be. 
-Side-effects: I have not yet found an unwanted side-effect.
-
-diff -r 46ea866ca3ac -r 6ef20eee3f8f gfx/2d/DrawTargetSkia.cpp
---- a/gfx/2d/DrawTargetSkia.cpp	Tue Oct 22 12:27:22 2019 +0200
-+++ b/gfx/2d/DrawTargetSkia.cpp	Thu Oct 31 09:11:56 2019 +0100
-@@ -2011,6 +2011,14 @@
-       SkCanvas::kPreserveLCDText_SaveLayerFlag |
-           (aCopyBackground ? SkCanvas::kInitWithPrevious_SaveLayerFlag : 0));
+ static inline SkAlphaType GfxFormatToSkiaAlphaType(SurfaceFormat format) {
+   switch (format) {
+-    case SurfaceFormat::B8G8R8X8:
++    case SurfaceFormat::OS_RGBX:
+     case SurfaceFormat::R5G6B5_UINT16:
+       return kOpaque_SkAlphaType;
+     default:
+diff --git a/gfx/ipc/CrossProcessPaint.cpp b/gfx/ipc/CrossProcessPaint.cpp
+--- a/gfx/ipc/CrossProcessPaint.cpp
++++ b/gfx/ipc/CrossProcessPaint.cpp
+@@ -107,7 +107,7 @@ PaintFragment PaintFragment::Record(dom:
+   nsContentUtils::FlushLayoutForTree(ds->GetWindow());
+ 
+   // Initialize the recorder
+-  SurfaceFormat format = SurfaceFormat::B8G8R8A8;
++  SurfaceFormat format = SurfaceFormat::OS_RGBA;
+   RefPtr<DrawTarget> referenceDt = Factory::CreateDrawTarget(
+       gfxPlatform::GetPlatform()->GetSoftwareBackend(), IntSize(1, 1), format);
+ 
+@@ -254,7 +254,7 @@ bool CrossProcessPaint::Start(dom::Windo
+         // Create the destination draw target
+         RefPtr<DrawTarget> drawTarget =
+             gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
+-                root->mSize, SurfaceFormat::B8G8R8A8);
++                root->mSize, SurfaceFormat::OS_RGBA);
+         if (!drawTarget || !drawTarget->IsValid()) {
+           CPP_LOG("Couldn't create (%d x %d) surface for fragment %" PRIu64
+                   ".\n",
+diff --git a/gfx/ipc/GfxMessageUtils.h b/gfx/ipc/GfxMessageUtils.h
+--- a/gfx/ipc/GfxMessageUtils.h
++++ b/gfx/ipc/GfxMessageUtils.h
+@@ -677,7 +677,7 @@ struct ParamTraits<GeckoProcessType>
+ template <>
+ struct ParamTraits<mozilla::gfx::SurfaceFormat>
+     : public ContiguousEnumSerializer<mozilla::gfx::SurfaceFormat,
+-                                      mozilla::gfx::SurfaceFormat::B8G8R8A8,
++                                      mozilla::gfx::SurfaceFormat::OS_RGBA,
+                                       mozilla::gfx::SurfaceFormat::UNKNOWN> {};
+ 
+ template <>
+diff --git a/gfx/layers/Compositor.cpp b/gfx/layers/Compositor.cpp
+--- a/gfx/layers/Compositor.cpp
++++ b/gfx/layers/Compositor.cpp
+@@ -36,7 +36,7 @@ class CompositorRecordedFrame final : pu
+     gfx::IntSize size = mBuffer->GetSize();
+ 
+     mSurface = gfx::Factory::CreateDataSourceSurface(
+-        size, gfx::SurfaceFormat::B8G8R8A8,
++        size, gfx::SurfaceFormat::OS_RGBA,
+         /* aZero = */ false);
+ 
+     if (!mBuffer->MapAndCopyInto(mSurface, size)) {
+diff --git a/gfx/layers/ImageDataSerializer.cpp b/gfx/layers/ImageDataSerializer.cpp
+--- a/gfx/layers/ImageDataSerializer.cpp
++++ b/gfx/layers/ImageDataSerializer.cpp
+@@ -288,16 +288,16 @@ already_AddRefed<DataSourceSurface> Data
+   RefPtr<DataSourceSurface> result;
+   if (aSurface) {
+     MOZ_ASSERT(aSurface->GetSize() == size);
+-    MOZ_ASSERT(aSurface->GetFormat() == gfx::SurfaceFormat::B8G8R8X8);
++    MOZ_ASSERT(aSurface->GetFormat() == gfx::SurfaceFormat::OS_RGBX);
+     if (aSurface->GetSize() == size &&
+-        aSurface->GetFormat() == gfx::SurfaceFormat::B8G8R8X8) {
++        aSurface->GetFormat() == gfx::SurfaceFormat::OS_RGBX) {
+       result = aSurface;
+     }
+   }
+ 
+   if (!result) {
+     result =
+-        Factory::CreateDataSourceSurface(size, gfx::SurfaceFormat::B8G8R8X8);
++        Factory::CreateDataSourceSurface(size, gfx::SurfaceFormat::OS_RGBX);
+   }
+   if (NS_WARN_IF(!result)) {
+     return nullptr;
+@@ -320,7 +320,7 @@ already_AddRefed<DataSourceSurface> Data
+   ycbcrData.mChromaSubsampling = aDescriptor.chromaSubsampling();
+ 
+-  gfx::ConvertYCbCrToRGB(ycbcrData, gfx::SurfaceFormat::B8G8R8X8, size,
++  gfx::ConvertYCbCrToRGB(ycbcrData, gfx::SurfaceFormat::OS_RGBX, size,
+                          map.mData, map.mStride);
+ 
+   result->Unmap();
+   return result.forget();
+diff --git a/gfx/layers/composite/TextureHost.cpp b/gfx/layers/composite/TextureHost.cpp
+--- a/gfx/layers/composite/TextureHost.cpp
++++ b/gfx/layers/composite/TextureHost.cpp
+@@ -182,7 +182,7 @@ already_AddRefed<TextureHost> CreateDumm
+   aFlags &= ~TextureFlags::DEALLOCATE_CLIENT;
+   aFlags |= TextureFlags::DUMMY_TEXTURE;
+   UniquePtr<TextureData> textureData(BufferTextureData::Create(
+-      gfx::IntSize(1, 1), gfx::SurfaceFormat::B8G8R8A8, gfx::BackendType::SKIA,
++      gfx::IntSize(1, 1), gfx::SurfaceFormat::OS_RGBA, gfx::BackendType::SKIA,
+       aBackend, aFlags, TextureAllocationFlags::ALLOC_DEFAULT, nullptr));
+   SurfaceDescriptor surfDesc;
+   textureData->Serialize(surfDesc);
+diff --git a/gfx/layers/ipc/SharedSurfacesChild.cpp b/gfx/layers/ipc/SharedSurfacesChild.cpp
+--- a/gfx/layers/ipc/SharedSurfacesChild.cpp
++++ b/gfx/layers/ipc/SharedSurfacesChild.cpp
+@@ -241,7 +241,7 @@ nsresult SharedSurfacesChild::ShareInter
+ 
+   SurfaceFormat format = aSurface->GetFormat();
+   MOZ_RELEASE_ASSERT(
+-      format == SurfaceFormat::B8G8R8X8 || format == SurfaceFormat::B8G8R8A8,
++      format == SurfaceFormat::OS_RGBX || format == SurfaceFormat::OS_RGBA,
+       "bad format");
+ 
+   data->MarkShared(manager->GetNextExternalImageId());
+diff --git a/gfx/layers/wr/WebRenderLayerManager.cpp b/gfx/layers/wr/WebRenderLayerManager.cpp
+--- a/gfx/layers/wr/WebRenderLayerManager.cpp
++++ b/gfx/layers/wr/WebRenderLayerManager.cpp
+@@ -512,7 +512,7 @@ void WebRenderLayerManager::MakeSnapshot
+ #ifdef MOZ_WIDGET_ANDROID
+       SurfaceFormat::R8G8B8A8;
+ #else
+-      SurfaceFormat::B8G8R8A8;
++      SurfaceFormat::OS_RGBA;
+ #endif
+   RefPtr<TextureClient> texture = TextureClient::CreateForRawBufferAccess(
+       WrBridge(), format, aSize.ToUnknownSize(), BackendType::SKIA,
+diff --git a/gfx/layers/wr/WebRenderTextureHost.cpp b/gfx/layers/wr/WebRenderTextureHost.cpp
+--- a/gfx/layers/wr/WebRenderTextureHost.cpp
++++ b/gfx/layers/wr/WebRenderTextureHost.cpp
+@@ -159,7 +159,7 @@ int32_t WebRenderTextureHost::GetRGBStri
+     // XXX this stride is used until yuv image rendering by webrender is used.
+     // Software converted RGB buffers strides are aliened to 16
+     return gfx::GetAlignedStride<16>(
+-        GetSize().width, BytesPerPixel(gfx::SurfaceFormat::B8G8R8A8));
++        GetSize().width, BytesPerPixel(gfx::SurfaceFormat::OS_RGBA));
+   }
+   return ImageDataSerializer::ComputeRGBStride(format, GetSize().width);
+ }
+diff --git a/gfx/thebes/gfx2DGlue.h b/gfx/thebes/gfx2DGlue.h
+--- a/gfx/thebes/gfx2DGlue.h
++++ b/gfx/thebes/gfx2DGlue.h
+@@ -68,9 +68,9 @@ inline gfxRect ThebesRect(const RectDoub
+ 
+ inline gfxImageFormat SurfaceFormatToImageFormat(SurfaceFormat aFormat) {
+   switch (aFormat) {
+-    case SurfaceFormat::B8G8R8A8:
++    case SurfaceFormat::OS_RGBA:
+       return SurfaceFormat::A8R8G8B8_UINT32;
+-    case SurfaceFormat::B8G8R8X8:
++    case SurfaceFormat::OS_RGBX:
+       return SurfaceFormat::X8R8G8B8_UINT32;
+     case SurfaceFormat::R5G6B5_UINT16:
+       return SurfaceFormat::R5G6B5_UINT16;
+@@ -84,16 +84,16 @@ inline gfxImageFormat SurfaceFormatToIma
+ inline SurfaceFormat ImageFormatToSurfaceFormat(gfxImageFormat aFormat) {
+   switch (aFormat) {
+     case SurfaceFormat::A8R8G8B8_UINT32:
+-      return SurfaceFormat::B8G8R8A8;
++      return SurfaceFormat::OS_RGBA;
+     case SurfaceFormat::X8R8G8B8_UINT32:
+-      return SurfaceFormat::B8G8R8X8;
++      return SurfaceFormat::OS_RGBX;
+     case SurfaceFormat::R5G6B5_UINT16:
+       return SurfaceFormat::R5G6B5_UINT16;
+     case SurfaceFormat::A8:
+       return SurfaceFormat::A8;
+     default:
+     case SurfaceFormat::UNKNOWN:
+-      return SurfaceFormat::B8G8R8A8;
++      return SurfaceFormat::OS_RGBA;
+   }
+ }
+ 
+@@ -102,9 +102,11 @@ inline gfxContentType ContentForFormat(c
+     case SurfaceFormat::R5G6B5_UINT16:
+     case SurfaceFormat::B8G8R8X8:
+     case SurfaceFormat::R8G8B8X8:
++    case SurfaceFormat::OS_RGBX:
+       return gfxContentType::COLOR;
+     case SurfaceFormat::A8:
+       return gfxContentType::ALPHA;
++    case SurfaceFormat::OS_RGBA:
+     case SurfaceFormat::B8G8R8A8:
+     case SurfaceFormat::R8G8B8A8:
+     default:
+diff --git a/gfx/thebes/gfxPlatform.cpp b/gfx/thebes/gfxPlatform.cpp
+--- a/gfx/thebes/gfxPlatform.cpp
++++ b/gfx/thebes/gfxPlatform.cpp
+@@ -987,7 +987,7 @@ void gfxPlatform::Init() {
+ 
+   gPlatform->mScreenReferenceDrawTarget =
+       gPlatform->CreateOffscreenContentDrawTarget(IntSize(1, 1),
+-                                                  SurfaceFormat::B8G8R8A8);
++                                                  SurfaceFormat::OS_RGBA);
+   if (!gPlatform->mScreenReferenceDrawTarget ||
+       !gPlatform->mScreenReferenceDrawTarget->IsValid()) {
+     // If TDR is detected, create a draw target with software backend
+diff --git a/gfx/thebes/gfxPlatformWorker.cpp b/gfx/thebes/gfxPlatformWorker.cpp
+--- a/gfx/thebes/gfxPlatformWorker.cpp
++++ b/gfx/thebes/gfxPlatformWorker.cpp
+@@ -64,7 +64,7 @@ RefPtr<mozilla::gfx::DrawTarget>
+ gfxPlatformWorker::ScreenReferenceDrawTarget() {
+   if (!mScreenReferenceDrawTarget) {
+     mScreenReferenceDrawTarget = Factory::CreateDrawTarget(
+-        BackendType::SKIA, IntSize(1, 1), SurfaceFormat::B8G8R8A8);
++        BackendType::SKIA, IntSize(1, 1), SurfaceFormat::OS_RGBA);
+   }
+   return mScreenReferenceDrawTarget;
+ }
+diff --git a/gfx/thebes/gfxUtils.cpp b/gfx/thebes/gfxUtils.cpp
+--- a/gfx/thebes/gfxUtils.cpp
++++ b/gfx/thebes/gfxUtils.cpp
+@@ -1082,10 +1082,10 @@ nsresult gfxUtils::EncodeSourceSurfaceAs
+   }
+ 
+   RefPtr<DataSourceSurface> dataSurface;
+-  if (aSurface->GetFormat() != SurfaceFormat::B8G8R8A8) {
++  if (aSurface->GetFormat() != SurfaceFormat::OS_RGBA) {
+     // FIXME bug 995807 (B8G8R8X8), bug 831898 (R5G6B5)
+     dataSurface = gfxUtils::CopySurfaceToDataSourceSurfaceWithFormat(
+-        aSurface, SurfaceFormat::B8G8R8A8);
++        aSurface, SurfaceFormat::OS_RGBA);
+   } else {
+     dataSurface = aSurface->GetDataSurface();
+   }
+diff --git a/gfx/webrender_bindings/RenderCompositorSWGL.cpp b/gfx/webrender_bindings/RenderCompositorSWGL.cpp
+--- a/gfx/webrender_bindings/RenderCompositorSWGL.cpp
++++ b/gfx/webrender_bindings/RenderCompositorSWGL.cpp
+@@ -7,6 +7,7 @@
+ #include "RenderCompositorSWGL.h"
+ 
+ #include "mozilla/gfx/Logging.h"
++#include "mozilla/gfx/Swizzle.h"
+ #include "mozilla/widget/CompositorWidget.h"
+ 
+ #ifdef MOZ_WIDGET_GTK
+@@ -92,8 +93,8 @@ bool RenderCompositorSWGL::AllocateMappe
+   gfx::SurfaceFormat format = gfx::SurfaceFormat::UNKNOWN;
+   if (bufferMode != layers::BufferMode::BUFFERED && !mSurface &&
+       mDT->LockBits(&data, &size, &stride, &format) &&
+-      (format != gfx::SurfaceFormat::B8G8R8A8 &&
+-       format != gfx::SurfaceFormat::B8G8R8X8)) {
++      (format != gfx::SurfaceFormat::OS_RGBA &&
++       format != gfx::SurfaceFormat::OS_RGBX)) {
+     // We tried to lock the DT and it succeeded, but the size or format
+     // of the data is not compatible, so just release it and fall back below...
+     mDT->ReleaseBits(data);
+@@ -127,7 +128,7 @@ bool RenderCompositorSWGL::AllocateMappe
+     size = bounds.Size().ToUnknownSize();
+     if (!mSurface || mSurface->GetSize() != size) {
+       mSurface = gfx::Factory::CreateDataSourceSurface(
+-          size, gfx::SurfaceFormat::B8G8R8A8);
++          size, gfx::SurfaceFormat::OS_RGBA);
+     }
+     gfx::DataSourceSurface::MappedSurface map = {nullptr, 0};
+     if (!mSurface || !mSurface->Map(gfx::DataSourceSurface::READ_WRITE, &map)) {
+@@ -242,6 +243,12 @@ void RenderCompositorSWGL::CommitMappedB
+   }
+   mDT->Flush();
  
 +#if MOZ_BIG_ENDIAN()
-+  // Pushing a layer where an aMask is defined produces wrong output.
-+  // We _should_ endian swap the data, but I couldn't find a workable way to do so
-+  // Therefore I deactivate those layers in the meantime.
-+  // The result is: Tab-titles that are longer than the available space should be faded out.
-+  //                The fading doesn't work, so we deactivate the fading-effect here.
-+  if (!aMask)
++  gfx::SwizzleData(mMappedData, mMappedStride, gfx::SurfaceFormat::B8G8R8A8,
++                   mMappedData, mMappedStride, gfx::SurfaceFormat::A8R8G8B8,
++                   mDT->GetSize());
 +#endif
-   mCanvas->saveLayer(saveRec);
++
+   // Done with the DT. Hand it back to the widget and clear out any trace of it.
+   mWidget->EndRemoteDrawingInRegion(mDT, mDirtyRegion);
+   mDirtyRegion.SetEmpty();
+diff --git a/gfx/webrender_bindings/RenderTextureHostSWGL.cpp b/gfx/webrender_bindings/RenderTextureHostSWGL.cpp
+--- a/gfx/webrender_bindings/RenderTextureHostSWGL.cpp
++++ b/gfx/webrender_bindings/RenderTextureHostSWGL.cpp
+@@ -36,8 +36,8 @@ bool RenderTextureHostSWGL::UpdatePlanes
+     }
+     GLenum internalFormat = 0;
+     switch (format) {
+-      case gfx::SurfaceFormat::B8G8R8A8:
+-      case gfx::SurfaceFormat::B8G8R8X8:
++      case gfx::SurfaceFormat::OS_RGBA:
++      case gfx::SurfaceFormat::OS_RGBX:
+         MOZ_ASSERT(colorDepth == gfx::ColorDepth::COLOR_8);
+         internalFormat = LOCAL_GL_RGBA8;
+         break;
+diff --git a/gfx/webrender_bindings/WebRenderTypes.h b/gfx/webrender_bindings/WebRenderTypes.h
+--- a/gfx/webrender_bindings/WebRenderTypes.h
++++ b/gfx/webrender_bindings/WebRenderTypes.h
+@@ -105,7 +105,7 @@ inline Maybe<wr::ImageFormat> SurfaceFor
+ inline gfx::SurfaceFormat ImageFormatToSurfaceFormat(ImageFormat aFormat) {
+   switch (aFormat) {
+     case ImageFormat::BGRA8:
+-      return gfx::SurfaceFormat::B8G8R8A8;
++      return gfx::SurfaceFormat::OS_RGBA;
+     case ImageFormat::R8:
+       return gfx::SurfaceFormat::A8;
+     case ImageFormat::R16:
+diff --git a/image/imgTools.cpp b/image/imgTools.cpp
+--- a/image/imgTools.cpp
++++ b/image/imgTools.cpp
+@@ -425,8 +425,8 @@ static nsresult EncodeImageData(DataSour
+                                 const nsACString& aMimeType,
+                                 const nsAString& aOutputOptions,
+                                 nsIInputStream** aStream) {
+-  MOZ_ASSERT(aDataSurface->GetFormat() == SurfaceFormat::B8G8R8A8 ||
+-                 aDataSurface->GetFormat() == SurfaceFormat::B8G8R8X8,
++  MOZ_ASSERT(aDataSurface->GetFormat() == SurfaceFormat::OS_RGBA ||
++                 aDataSurface->GetFormat() == SurfaceFormat::OS_RGBX,
+              "We're assuming B8G8R8A8/X8");
+ 
+   // Get an image encoder for the media type
+@@ -474,13 +474,13 @@ imgTools::EncodeImage(imgIContainer* aCo
+ 
+   RefPtr<DataSourceSurface> dataSurface;
+ 
+-  if (frame->GetFormat() == SurfaceFormat::B8G8R8A8 ||
+-      frame->GetFormat() == SurfaceFormat::B8G8R8X8) {
++  if (frame->GetFormat() == SurfaceFormat::OS_RGBA ||
++      frame->GetFormat() == SurfaceFormat::OS_RGBX) {
+     dataSurface = frame->GetDataSurface();
+   } else {
+     // Convert format to SurfaceFormat::B8G8R8A8
+     dataSurface = gfxUtils::CopySurfaceToDataSourceSurfaceWithFormat(
+-        frame, SurfaceFormat::B8G8R8A8);
++        frame, SurfaceFormat::OS_RGBA);
+   }
+ 
+   NS_ENSURE_TRUE(dataSurface, NS_ERROR_FAILURE);
+@@ -522,8 +522,8 @@ imgTools::EncodeScaledImage(imgIContaine
+ 
+   // If the given surface is the right size/format, we can encode it directly.
+   if (scaledSize == frame->GetSize() &&
+-      (frame->GetFormat() == SurfaceFormat::B8G8R8A8 ||
+-       frame->GetFormat() == SurfaceFormat::B8G8R8X8)) {
++      (frame->GetFormat() == SurfaceFormat::OS_RGBA ||
++       frame->GetFormat() == SurfaceFormat::OS_RGBX)) {
+     RefPtr<DataSourceSurface> dataSurface = frame->GetDataSurface();
+     if (dataSurface) {
+       return EncodeImageData(dataSurface, aMimeType, aOutputOptions, aStream);
+@@ -533,7 +533,7 @@ imgTools::EncodeScaledImage(imgIContaine
+   // Otherwise we need to scale it using a draw target.
+   // Ensure the surface is initialized to clear in case we need to blend to it.
+   RefPtr<DataSourceSurface> dataSurface = Factory::CreateDataSourceSurface(
+-      scaledSize, SurfaceFormat::B8G8R8A8, true);
++      scaledSize, SurfaceFormat::OS_RGBA, true);
+   if (NS_WARN_IF(!dataSurface)) {
+     return NS_ERROR_FAILURE;
+   }
+@@ -545,7 +545,7 @@ imgTools::EncodeScaledImage(imgIContaine
+ 
+   RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForData(
+       BackendType::SKIA, map.GetData(), dataSurface->GetSize(), map.GetStride(),
+-      SurfaceFormat::B8G8R8A8);
++      SurfaceFormat::OS_RGBA);
+   if (!dt) {
+     gfxWarning() << "imgTools::EncodeImage failed in CreateDrawTargetForData";
+     return NS_ERROR_OUT_OF_MEMORY;
+@@ -603,7 +603,7 @@ imgTools::EncodeCroppedImage(imgIContain
+                 frameHeight >= aOffsetY + aHeight);
+ 
+   RefPtr<DataSourceSurface> dataSurface = Factory::CreateDataSourceSurface(
+-      IntSize(aWidth, aHeight), SurfaceFormat::B8G8R8A8,
++      IntSize(aWidth, aHeight), SurfaceFormat::OS_RGBA,
+       /* aZero = */ true);
+   if (NS_WARN_IF(!dataSurface)) {
+     return NS_ERROR_FAILURE;
+@@ -616,7 +616,7 @@ imgTools::EncodeCroppedImage(imgIContain
+ 
+   RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForData(
+       BackendType::SKIA, map.GetData(), dataSurface->GetSize(), map.GetStride(),
+-      SurfaceFormat::B8G8R8A8);
++      SurfaceFormat::OS_RGBA);
+   if (!dt) {
+     gfxWarning()
+         << "imgTools::EncodeCroppedImage failed in CreateDrawTargetForData";
+diff --git a/layout/base/PresShell.cpp b/layout/base/PresShell.cpp
+--- a/layout/base/PresShell.cpp
++++ b/layout/base/PresShell.cpp
+@@ -5124,7 +5124,7 @@ already_AddRefed<SourceSurface> PresShel
+ 
+   RefPtr<DrawTarget> dt =
+       gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
+-          IntSize(pixelArea.width, pixelArea.height), SurfaceFormat::B8G8R8A8);
++          IntSize(pixelArea.width, pixelArea.height), SurfaceFormat::OS_RGBA);
+   if (!dt || !dt->IsValid()) {
+     return nullptr;
+   }
+diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp
+--- a/layout/base/nsLayoutUtils.cpp
++++ b/layout/base/nsLayoutUtils.cpp
+@@ -7022,9 +7022,9 @@ SurfaceFromElementResult nsLayoutUtils::
+     result.mAlphaType = gfxAlphaType::Opaque;
+     RefPtr<DrawTarget> ref =
+         aTarget ? aTarget : gfxPlatform::ThreadLocalScreenReferenceDrawTarget();
+-    if (ref->CanCreateSimilarDrawTarget(size, SurfaceFormat::B8G8R8A8)) {
++    if (ref->CanCreateSimilarDrawTarget(size, SurfaceFormat::OS_RGBA)) {
+       RefPtr<DrawTarget> dt =
+-          ref->CreateSimilarDrawTarget(size, SurfaceFormat::B8G8R8A8);
++          ref->CreateSimilarDrawTarget(size, SurfaceFormat::OS_RGBA);
+       if (dt) {
+         result.mSourceSurface = dt->Snapshot();
+       }
+@@ -7102,12 +7102,12 @@ SurfaceFromElementResult nsLayoutUtils::
+                                  : gfxPlatform::GetPlatform()
+                                        ->ThreadLocalScreenReferenceDrawTarget();
+     if (!ref->CanCreateSimilarDrawTarget(displaySize,
+-                                         SurfaceFormat::B8G8R8A8)) {
++                                         SurfaceFormat::OS_RGBA)) {
+       return result;
+     }
+ 
+     RefPtr<DrawTarget> dt =
+-        ref->CreateSimilarDrawTarget(displaySize, SurfaceFormat::B8G8R8A8);
++        ref->CreateSimilarDrawTarget(displaySize, SurfaceFormat::OS_RGBA);
+     if (!dt) {
+       return result;
+     }
+@@ -7380,9 +7380,9 @@ SurfaceFromElementResult nsLayoutUtils::
+     RefPtr<DrawTarget> ref =
+         aTarget ? aTarget
+                 : gfxPlatform::GetPlatform()->ScreenReferenceDrawTarget();
+-    if (ref->CanCreateSimilarDrawTarget(size, SurfaceFormat::B8G8R8A8)) {
++    if (ref->CanCreateSimilarDrawTarget(size, SurfaceFormat::OS_RGBA)) {
+       RefPtr<DrawTarget> dt =
+-          ref->CreateSimilarDrawTarget(size, SurfaceFormat::B8G8R8A8);
++          ref->CreateSimilarDrawTarget(size, SurfaceFormat::OS_RGBA);
+       if (dt) {
+         result.mSourceSurface = dt->Snapshot();
+       }
+diff --git a/layout/painting/nsCSSRenderingGradients.cpp b/layout/painting/nsCSSRenderingGradients.cpp
+--- a/layout/painting/nsCSSRenderingGradients.cpp
++++ b/layout/painting/nsCSSRenderingGradients.cpp
+@@ -1160,7 +1160,7 @@ bool nsCSSGradientRenderer::TryPaintTile
+   {
+     RefPtr<gfx::DrawTarget> tileTarget =
+         aContext.GetDrawTarget()->CreateSimilarDrawTarget(
+-            tileSize, gfx::SurfaceFormat::B8G8R8A8);
++            tileSize, gfx::SurfaceFormat::OS_RGBA);
+     if (!tileTarget || !tileTarget->IsValid()) {
+       return false;
+     }
+diff --git a/layout/painting/nsDisplayList.cpp b/layout/painting/nsDisplayList.cpp
+--- a/layout/painting/nsDisplayList.cpp
++++ b/layout/painting/nsDisplayList.cpp
+@@ -5043,7 +5043,7 @@ void nsDisplayBlendMode::Paint(nsDisplay
+   // we're going to draw to. This will include the same transform as
+   // is currently on |dt|.
+   RefPtr<DrawTarget> temp =
+-      dt->CreateClippedDrawTarget(rect, SurfaceFormat::B8G8R8A8);
++      dt->CreateClippedDrawTarget(rect, SurfaceFormat::OS_RGBA);
+   if (!temp) {
+     return;
+   }
+@@ -6870,7 +6870,7 @@ void nsDisplayTransform::Paint(nsDisplay
+   RefPtr<DrawTarget> untransformedDT =
+       gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
+           IntSize(pixelBounds.Width(), pixelBounds.Height()),
+-          SurfaceFormat::B8G8R8A8, true);
++          SurfaceFormat::OS_RGBA, true);
+   if (!untransformedDT || !untransformedDT->IsValid()) {
+     return;
+   }
+diff --git a/layout/painting/nsImageRenderer.cpp b/layout/painting/nsImageRenderer.cpp
+--- a/layout/painting/nsImageRenderer.cpp
++++ b/layout/painting/nsImageRenderer.cpp
+@@ -469,7 +469,7 @@ ImgDrawResult nsImageRenderer::Draw(nsPr
+       return ImgDrawResult::SUCCESS;
+     }
+     RefPtr<DrawTarget> tempDT = ctx->GetDrawTarget()->CreateSimilarDrawTarget(
+-        tmpDTRect.Size(), SurfaceFormat::B8G8R8A8);
++        tmpDTRect.Size(), SurfaceFormat::OS_RGBA);
+     if (!tempDT || !tempDT->IsValid()) {
+       gfxDevCrash(LogReason::InvalidContext)
+           << "ImageRenderer::Draw problem " << gfx::hexa(tempDT);
+diff --git a/layout/svg/FilterInstance.cpp b/layout/svg/FilterInstance.cpp
+--- a/layout/svg/FilterInstance.cpp
++++ b/layout/svg/FilterInstance.cpp
+@@ -666,7 +666,7 @@ void FilterInstance::BuildSourcePaint(So
+ 
+   RefPtr<DrawTarget> offscreenDT =
+       gfxPlatform::GetPlatform()->CreateOffscreenContentDrawTarget(
+-          neededRect.Size(), SurfaceFormat::B8G8R8A8);
++          neededRect.Size(), SurfaceFormat::OS_RGBA);
+   if (!offscreenDT || !offscreenDT->IsValid()) {
+     return;
+   }
+@@ -714,7 +714,7 @@ void FilterInstance::BuildSourceImage(Dr
+   }
+ 
+   RefPtr<DrawTarget> offscreenDT;
+-  SurfaceFormat format = SurfaceFormat::B8G8R8A8;
++  SurfaceFormat format = SurfaceFormat::OS_RGBA;
+   if (aDest->CanCreateSimilarDrawTarget(neededRect.Size(), format)) {
+     offscreenDT = aDest->CreateSimilarDrawTargetForFilter(
+         neededRect.Size(), format, aFilter, aSource, aSourceRect, Point(0, 0));
+diff --git a/layout/svg/SVGMaskFrame.cpp b/layout/svg/SVGMaskFrame.cpp
+--- a/layout/svg/SVGMaskFrame.cpp
++++ b/layout/svg/SVGMaskFrame.cpp
+@@ -68,7 +68,7 @@ already_AddRefed<SourceSurface> SVGMaskF
+   RefPtr<DrawTarget> maskDT;
+   if (maskType == StyleMaskType::Luminance) {
+     maskDT = aParams.dt->CreateClippedDrawTarget(maskSurfaceRect,
+-                                                 SurfaceFormat::B8G8R8A8);
++                                                 SurfaceFormat::OS_RGBA);
+   } else {
+     maskDT =
+         aParams.dt->CreateClippedDrawTarget(maskSurfaceRect, SurfaceFormat::A8);
+diff --git a/layout/svg/SVGPatternFrame.cpp b/layout/svg/SVGPatternFrame.cpp
+--- a/layout/svg/SVGPatternFrame.cpp
++++ b/layout/svg/SVGPatternFrame.cpp
+@@ -370,7 +370,7 @@ already_AddRefed<SourceSurface> SVGPatte
+   }
+ 
+   RefPtr<DrawTarget> dt = aDrawTarget->CreateSimilarDrawTargetWithBacking(
+-      surfaceSize, SurfaceFormat::B8G8R8A8);
++      surfaceSize, SurfaceFormat::OS_RGBA);
+   if (!dt || !dt->IsValid()) {
+     return nullptr;
+   }
+diff --git a/layout/svg/SVGUtils.cpp b/layout/svg/SVGUtils.cpp
+--- a/layout/svg/SVGUtils.cpp
++++ b/layout/svg/SVGUtils.cpp
+@@ -488,7 +488,7 @@ class MixModeBlender {
+ 
+     RefPtr<DrawTarget> targetDT =
+         mSourceCtx->GetDrawTarget()->CreateSimilarDrawTarget(
+-            drawRect.Size(), SurfaceFormat::B8G8R8A8);
++            drawRect.Size(), SurfaceFormat::OS_RGBA);
+     if (!targetDT || !targetDT->IsValid()) {
+       return nullptr;
+     }
+diff --git a/widget/gtk/DMABufSurface.cpp b/widget/gtk/DMABufSurface.cpp
+--- a/widget/gtk/DMABufSurface.cpp
++++ b/widget/gtk/DMABufSurface.cpp
+@@ -948,8 +948,8 @@ bool DMABufSurfaceRGBA::HasAlpha() {
+ }
+ 
+ gfx::SurfaceFormat DMABufSurfaceRGBA::GetFormat() {
+-  return HasAlpha() ? gfx::SurfaceFormat::B8G8R8A8
+-                    : gfx::SurfaceFormat::B8G8R8X8;
++  return HasAlpha() ? gfx::SurfaceFormat::OS_RGBA
++                    : gfx::SurfaceFormat::OS_RGBX;
+ }
+ 
+ // GL uses swapped R and B components so report accordingly.
+@@ -1662,7 +1662,7 @@ DMABufSurfaceYUV::GetAsSourceSurface() {
+   LOGDMABUF(("DMABufSurfaceYUV::GetAsSourceSurface UID %d", mUID));
+ 
+   gfx::IntSize size(GetWidth(), GetHeight());
+-  const auto format = gfx::SurfaceFormat::B8G8R8A8;
++  const auto format = gfx::SurfaceFormat::OS_RGBA;
+   RefPtr<gfx::DataSourceSurface> source =
+       gfx::Factory::CreateDataSourceSurface(size, format);
+   if (NS_WARN_IF(!source)) {
+@@ -1692,7 +1692,7 @@ nsresult DMABufSurfaceYUV::BuildSurfaceD
+   LOGDMABUF(("DMABufSurfaceYUV::BuildSurfaceDescriptorBuffer UID %d", mUID));
+ 
+   gfx::IntSize size(GetWidth(), GetHeight());
+-  const auto format = gfx::SurfaceFormat::B8G8R8A8;
++  const auto format = gfx::SurfaceFormat::OS_RGBA;
  
-   SetPermitSubpixelAA(aOpaque);
+   uint8_t* buffer = nullptr;
+   int32_t stride = 0;
+diff --git a/widget/gtk/WindowSurfaceX11.cpp b/widget/gtk/WindowSurfaceX11.cpp
+--- a/widget/gtk/WindowSurfaceX11.cpp
++++ b/widget/gtk/WindowSurfaceX11.cpp
+@@ -24,13 +24,13 @@ gfx::SurfaceFormat WindowSurfaceX11::Get
+     case 32:
+       if (aVisual->red_mask == 0xff0000 && aVisual->green_mask == 0xff00 &&
+           aVisual->blue_mask == 0xff) {
+-        return gfx::SurfaceFormat::B8G8R8A8;
++        return gfx::SurfaceFormat::OS_RGBA;
+       }
+       break;
+     case 24:
+       if (aVisual->red_mask == 0xff0000 && aVisual->green_mask == 0xff00 &&
+           aVisual->blue_mask == 0xff) {
+-        return gfx::SurfaceFormat::B8G8R8X8;
++        return gfx::SurfaceFormat::OS_RGBX;
+       }
+       break;
+     case 16:
diff --git a/user/firefox-esr/webrender.patch b/user/firefox-esr/webrender.patch
index 1c0d381ac..e6b145956 100644
--- a/user/firefox-esr/webrender.patch
+++ b/user/firefox-esr/webrender.patch
@@ -6,34 +6,6 @@
 # Parent  20d81e68da033746bf81acbb08490f16679853da
 Bug 1716707 [s390x] Software WebRender does not support big endian
 
---- firefox-128.0/gfx/webrender_bindings/RenderCompositorSWGL.cpp
-+++ firefox-128.0/gfx/webrender_bindings/RenderCompositorSWGL.cpp
-@@ -7,6 +7,7 @@ * file, You can obtain one at http://moz
- #include "RenderCompositorSWGL.h"
- 
- #include "mozilla/gfx/Logging.h"
-+#include "mozilla/gfx/Swizzle.h"
- #include "mozilla/widget/CompositorWidget.h"
- 
- #ifdef MOZ_WIDGET_GTK
-@@ -242,6 +243,17 @@ mDT->ReleaseBits(mMappedData);
-   }
-   mDT->Flush();
- 
-+#if MOZ_BIG_ENDIAN()
-+  // One swizzle to rule them all.
-+  // With exception to certain text boxes with 1 line (46 pixels) and 2 lines
-+  // (64 pixels) in Firefox 115. Per following bug:
-+  // https://bugzilla.mozilla.org/show_bug.cgi?id=1900574
-+  if ((int)mDT->GetSize().height != 46 && mDT->GetSize().height != 64)
-+    gfx::SwizzleData(mMappedData, mMappedStride, gfx::SurfaceFormat::B8G8R8A8,
-+                     mMappedData, mMappedStride, gfx::SurfaceFormat::A8R8G8B8,
-+                     mDT->GetSize());
-+#endif
-+
-   // Done with the DT. Hand it back to the widget and clear out any trace of it.
-   mWidget->EndRemoteDrawingInRegion(mDT, mDirtyRegion);
-   mDirtyRegion.SetEmpty();
 --- firefox-128.0/image/imgFrame.cpp
 +++ firefox-128.0/image/imgFrame.cpp
 @@ -372,6 +372,17 @@ mAborted = true;