$ git diff --patch-with-stat --summary 4b0e4731b7a4fe5df148002c006108af549ffaf7..26780186ca7d03fd774840b3e0cf69ab39594a84

 .abf.yml                     | 140 +++++++++++++++++++++----------------------
 firefox-glibc-dynstack.patch |  64 ++++++++++++++++++++
 firefox.spec                 |  17 ++----
 3 files changed, 139 insertions(+), 82 deletions(-)
 create mode 100644 firefox-glibc-dynstack.patch

diff --git a/.abf.yml b/.abf.yml
index 9a30e2a..51eac70 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,71 +1,71 @@
 sources:
-  af.xpi: dcd9d8c2ec265d0e9fe794b9f3d108f434815280
-  ar.xpi: c70ca157f4fb3ba3aa0d6579ce67b10999544661
-  ast.xpi: 55e683d3f15b77551b9f497645549383b74658e7
-  bg.xpi: 9d89865afaaabeab68a2e56159f80ad3500226f5
-  bn.xpi: c9725ee822772654c60ea7a752eb071bdfb42dec
-  br.xpi: 3bdf12ea7a792424fb2390178a1a0c7ef0366065
-  bs.xpi: 1ac27cb75e5934f244cff76cc2be055a9190a965
-  ca.xpi: 87486494a90a60b78afb78e62c2f217e85b97913
-  cs.xpi: 8e415731927545e1524821a4167da5ee951b652b
-  cy.xpi: 4bc872f509c499c1ad5f0b6419b94982f17ea963
-  da.xpi: a7c429ada29ced7bd935d8b22de4f1871f4dd5f1
-  de.xpi: 9a3ecf003afad0818b0826afc786fa6648622d3b
-  el.xpi: 54b2dcb844ad265e07188997d97c2511a2a1b4ba
-  en-GB.xpi: 345203842454d6a4ab6fc6b4f344ee0318cfd325
-  eo.xpi: bd1a263d780e4369035172e7e5ef6e8f738086ee
-  es-AR.xpi: 69e8320ab311e671de13ca41058ff5d28b95c755
-  es-CL.xpi: 208f9b6316f2ffd7fdd964784b8609f353bf1424
-  es-ES.xpi: 375d79f7712183ec84a6c358b9e18e9562c6d2bf
-  es-MX.xpi: 50187bc730d78a40518704dae90ca4a7bb32d24a
-  et.xpi: 429d5597aa4bf627de78cd01ea46992674294e1f
-  eu.xpi: 700b7569514a5fafb3b8d91e5619db95bf200e62
-  fa.xpi: 0bd77e1617709fbf68d23f6c6420d267d7a41cc9
-  fi.xpi: 539af314b69772aa6b53d935a0aba5d1c91ae9f1
-  firefox-90.0.2.source.tar.xz: bc8038e849f300623ffa868187d9d53ae655e31c
-  fr.xpi: fbab19022fe505e546e9749a69a539197ad8b4b1
-  fy-NL.xpi: f88366d9ecf0d2edcfbadf5805e2f6fe1c1d66bc
-  ga-IE.xpi: 5de3ae72fc95d05ca1178a4c1944e40c822f28c6
-  gd.xpi: 8a129c316c20dbc300d5c3401c5d5dac4326a633
-  gl.xpi: 88c044774559ebce13201fe1df2a576a273d2668
-  gu-IN.xpi: 23724cf20ab7a086739a57bcdc3115efb2301528
-  he.xpi: bde4f2c31ddc8097090cb6d1e118327d7684683c
-  hi-IN.xpi: 49acf059ae18190fa4bff5bc5a51cc3515c7b4af
-  hr.xpi: e39988241552aa480f0b0554135f56f69aacf69f
-  hu.xpi: 6c132a04c3203ea59e1c5c748c290144b1a246b7
-  hy-AM.xpi: 94f9ac0c0b8b9e7fd51aeb7b713e82f9e7842247
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-  is.xpi: fb195fd68f2f77475f04781f197d5baea66fe5bf
-  it.xpi: 1dfb4d3c23b10377fbc2b13c6a7e987b6fa7fd27
-  ja.xpi: e4b7842964f89798ce24e55edbb621a5dce4f217
-  kk.xpi: 9d37f72eb05be908892e8a1cfb8eafa3d4cf554d
-  km.xpi: 03a639599877d05bfad5cf9314e84dc399faa5fc
-  kn.xpi: c93914815dec06212176e1d8a7e4ae7af3c4c452
-  ko.xpi: 985875268a9fc443cd2e2f072e732809364529f0
-  lt.xpi: bd6dd9491a9c4fbc228e569655db29820f8ddec6
-  lv.xpi: fb31d3a595f76497a33abc08faac0818522fa77b
-  mk.xpi: 29466a36fcf382661594e9ef2d9d9627b9c5e2d8
-  mr.xpi: 0fde027777cd0ded8b4ce35efaa4088ae925a01b
-  nb-NO.xpi: 763de625f3edfbb5ed13f480201a94af127e5240
-  nl.xpi: 158a76f7817086b40cc526f6a830e9e8240b2362
-  nn-NO.xpi: d6bb83977178792a22681bbc0eec722e709cefae
-  pa-IN.xpi: 9eb3a39f5c4b0275d8ad96e14cf72115c4907b12
-  pl.xpi: 5c5ff9e2842806c9ed36dc6f57a3b1519af261fd
-  pt-BR.xpi: 352d0f27d6eee3752862ed8a3ec5ef481ecaed56
-  pt-PT.xpi: a6de71fc5f64ef8137f4a8c1d914fdad8219ff83
-  ro.xpi: 0ecc4357f86967835f0456b8d64bda39d9ca2209
-  ru.xpi: b836f1b862a286335be5072ddd013f2fd4d6c3f0
-  si.xpi: e0291fc1b89aef8c940e82d8d90285d5f299903b
-  sk.xpi: f74810b43ac7a47bc388ff047054c3591c0fc197
-  sl.xpi: cc2a2ee8f8592bb0c76c55c5bd8a5be31c4dfa60
-  sq.xpi: 589b1598fd6240ddf3b8072669ffa13c2d23bf2b
-  sr.xpi: 2110bb4e0eaeb71c49ec9f5952d9850ff2b19974
-  sv-SE.xpi: 0b1eb77b71bb657167fb942ceb2b26a220c388c3
-  ta.xpi: 762990cdcb57316f8f4f8dbf465a5828d4aea74f
-  te.xpi: 097066a83d9d2b05d091932cc999d4dd30eed6d5
-  th.xpi: 69f4aed71e64c19a7f37b5a11df6d6cd0b61dad1
-  tr.xpi: 88538b807f8ff7dd88243e4b0121ba0492449dac
-  uk.xpi: bd466209bd005dcd91b6fae5eb313747a7aea01b
-  vi.xpi: bc97998f30f75c70a67f7c5fc40c18ff66fb592e
-  zh-CN.xpi: 7e5ee3ccee67030fb414ca6f85572db2e1589a5b
-  zh-TW.xpi: 7be1f634cc07b07d402eed8986baeb42dbeaa84c
+  af.xpi: 6aeffa42791a0828d2565d5c1df93b476f279391
+  ar.xpi: eea7f77a95ae2dcd5045aa5750bda5099e3592cf
+  ast.xpi: 16358fa35a993d402f53d651752af98b76daaa79
+  bg.xpi: ffdb169a833f8aa9a2702fd62b237f90db0a8e6e
+  bn.xpi: 94ba4f38ffbe341d37e45f18a48f7554e5903a73
+  br.xpi: 35a60c4b1d81512e23ed78e8cb01873413ddbede
+  bs.xpi: d24caa6897b509e781d9e0bb4dc0742cabaa6bda
+  ca.xpi: 67748e7b7d73008711a9796223d48de65566cb21
+  cs.xpi: dc4c70623f65048851c1c00b4f6801b4eddefc9a
+  cy.xpi: e1e9b8f2ea1bb79b1932740a6434de15478bde20
+  da.xpi: eaa3047539fc117a3d5cd7fb4ab6f59b307046d4
+  de.xpi: d428088a33e997a7384b01738b0437abe6b8d086
+  el.xpi: 719807086d1d1b289820cc99b511f5b3e91b12f3
+  en-GB.xpi: 39c2d7799f20ea43bbbd80a55347848fb8cd9785
+  eo.xpi: d95fa2d49ed300852fe70e973d986013d25be8af
+  es-AR.xpi: 590fbbf4572ce8238197098b9632ae4162fed140
+  es-CL.xpi: 92035af8b29e0294a5a1956c1bd6b47395e43da0
+  es-ES.xpi: baa652e93435ccb982d100289b5496f67b57d5ca
+  es-MX.xpi: c646ac0941e253610fdd73cf829c56435b714ac9
+  et.xpi: 040fa4d6a363fa9d5b7695369d5aefb925af19a9
+  eu.xpi: 244e9a7ae1154ffa44b4337e28eb56cded72939f
+  fa.xpi: e0b619097a256609f4af55db8963389ec833dea5
+  fi.xpi: 9373a7c92168e08bcd0256116e49d4cb1d644646
+  firefox-91.0.2.source.tar.xz: 953eb52799ae1da9ea63e154e1b3194c10bca8ce
+  fr.xpi: ebc7042f8db0dd3d5826e064843044c5417ab404
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+  ja.xpi: 5dc3e886ade11f886db9bb0ad3afaab9d1085607
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+  lt.xpi: e9b7e8320c437305316bbb66b80e09b8b4b3129f
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+  mr.xpi: 646837a8b27f593916358b1d6b049e16d33560f3
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+  nn-NO.xpi: 8098e79aecc501d0b210075fefa355cab5a7975f
+  pa-IN.xpi: b85106102c9ab991c96dc6817abb90f6e0932452
+  pl.xpi: 49295564f24be06fa3ae9d0e520152f00c7206d9
+  pt-BR.xpi: c32192f9e4cc38cd574a3e58be5e57500495d2f9
+  pt-PT.xpi: 21dd9e0ce7e546f261ac452a6954d8bad95b8f74
+  ro.xpi: ef2678ca89c5edd9b6d4d6db0c57f0859131a610
+  ru.xpi: 4db19cdc7c84ab02fc1d275bb5d5e1b2d1814856
+  si.xpi: b4d8dfe473a5943e04584173506ca18ded3351aa
+  sk.xpi: b8c73d577073d95730e7f90fb629d40ec6060f0a
+  sl.xpi: 0e30b772ea2f71e8b138d31798933b09c2e4c602
+  sq.xpi: 8521d26d7fb61a28181c34659542dc3cb5ac9f4e
+  sr.xpi: bb962ec5ac15aef39b40b57e54567b0179937027
+  sv-SE.xpi: 717d1d848d5456ccde7c794e084c4bfc573f8e7d
+  ta.xpi: a1a9058b5efffecf6634a54cccaff08b9ad20ace
+  te.xpi: 315b4e7da27f99867914c42245212d3fe12af7ed
+  th.xpi: 4ce8b4ce500b02316bf38846a465711d409f8c9b
+  tr.xpi: f5b72a25843f8f7d024f5a1eba1dba9280ea5563
+  uk.xpi: 773540ed14d4ecd7ff6c48e7c8413f6a5eb89744
+  vi.xpi: 304d49d5a787185f361b16a3d3e0dc6148e236f0
+  zh-CN.xpi: 0f23072d8c27e6fa606092db2af310deb8880b5a
+  zh-TW.xpi: 26b4a68133f38fbdf277758f6845e53eed671de3
diff --git a/firefox-glibc-dynstack.patch b/firefox-glibc-dynstack.patch
new file mode 100644
index 0000000..b0487d7
--- /dev/null
+++ b/firefox-glibc-dynstack.patch
@@ -0,0 +1,64 @@
+diff -ur firefox-90.0.orig/js/xpconnect/src/XPCJSContext.cpp firefox-90.0/js/xpconnect/src/XPCJSContext.cpp
+--- firefox-90.0.orig/js/xpconnect/src/XPCJSContext.cpp	2021-07-05 21:16:02.000000000 +0200
++++ firefox-90.0/js/xpconnect/src/XPCJSContext.cpp	2021-07-19 15:01:24.083460460 +0200
+@@ -85,14 +85,6 @@
+ using namespace xpc;
+ using namespace JS;
+ 
+-// The watchdog thread loop is pretty trivial, and should not require much stack
+-// space to do its job. So only give it 32KiB or the platform minimum.
+-#if !defined(PTHREAD_STACK_MIN)
+-#  define PTHREAD_STACK_MIN 0
+-#endif
+-static constexpr size_t kWatchdogStackSize =
+-    PTHREAD_STACK_MIN < 32 * 1024 ? 32 * 1024 : PTHREAD_STACK_MIN;
+-
+ static void WatchdogMain(void* arg);
+ class Watchdog;
+ class WatchdogManager;
+@@ -163,7 +155,7 @@
+       // watchdog, we need to join it on shutdown.
+       mThread = PR_CreateThread(PR_USER_THREAD, WatchdogMain, this,
+                                 PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD,
+-                                PR_JOINABLE_THREAD, kWatchdogStackSize);
++                                PR_JOINABLE_THREAD, 0);
+       if (!mThread) {
+         MOZ_CRASH("PR_CreateThread failed!");
+       }
+Only in firefox-90.0/js/xpconnect/src: XPCJSContext.cpp.firefox-glibc-dynstack
+diff -ur firefox-90.0.orig/security/sandbox/linux/launch/SandboxLaunch.cpp firefox-90.0/security/sandbox/linux/launch/SandboxLaunch.cpp
+--- firefox-90.0.orig/security/sandbox/linux/launch/SandboxLaunch.cpp	2021-07-05 18:20:36.000000000 +0200
++++ firefox-90.0/security/sandbox/linux/launch/SandboxLaunch.cpp	2021-07-20 08:39:17.272136982 +0200
+@@ -501,8 +501,7 @@
+ MOZ_NEVER_INLINE MOZ_ASAN_BLACKLIST static pid_t DoClone(int aFlags,
+                                                          jmp_buf* aCtx) {
+   static constexpr size_t kStackAlignment = 16;
+-  uint8_t miniStack[PTHREAD_STACK_MIN]
+-      __attribute__((aligned(kStackAlignment)));
++  uint8_t miniStack[4096] __attribute__((aligned(kStackAlignment)));
+ #ifdef __hppa__
+   void* stackPtr = miniStack;
+ #else
+@@ -523,13 +522,19 @@
+                                CLONE_CHILD_CLEARTID;
+   MOZ_RELEASE_ASSERT((aFlags & kBadFlags) == 0);
+ 
++  // Block signals due to small stack in DoClone.
++  sigset_t oldSigs;
++  BlockAllSignals(&oldSigs);
++
++  int ret = 0;
+   jmp_buf ctx;
+   if (setjmp(ctx) == 0) {
+     // In the parent and just called setjmp:
+-    return DoClone(aFlags | SIGCHLD, &ctx);
++    ret = DoClone(aFlags | SIGCHLD, &ctx);
+   }
++  RestoreSignals(&oldSigs);
+   // In the child and have longjmp'ed:
+-  return 0;
++  return ret;
+ }
+ 
+ static bool WriteStringToFile(const char* aPath, const char* aStr,
+Only in firefox-90.0/security/sandbox/linux/launch: SandboxLaunch.cpp~
diff --git a/firefox.spec b/firefox.spec
index 52f7457..91cb0b4 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -222,7 +222,7 @@ Name:		firefox
 Epoch:		0
 # IMPORTANT: When updating, you MUST also update the l10n files by running
 # download.sh after editing the version number
-Version:	90.0.2
+Version:	91.0.2
 Release:	1
 License:	MPLv1+
 Group:		Networking/WWW
@@ -265,6 +265,7 @@ Patch14:	build-aarch64-skia.patch
 Patch15:	build-arm-libopus.patch
 
 Patch44:	https://src.fedoraproject.org/rpms/firefox/raw/master/f/build-disable-elfhack.patch
+Patch45:	firefox-glibc-dynstack.patch
 
 BuildRequires:	doxygen
 BuildRequires:	makedepend
@@ -284,8 +285,6 @@ BuildRequires:	pkgconfig(dbus-glib-1)
 BuildRequires:	pkgconfig(glib-2.0)
 BuildRequires:	pkgconfig(gl)
 BuildRequires:	pkgconfig(libdrm)
-BuildRequires:	pkgconfig(gstreamer-plugins-base-1.0)
-BuildRequires:	pkgconfig(gtk+-2.0)
 BuildRequires:	pkgconfig(gtk+-3.0)
 BuildRequires:	pkgconfig(icu-i18n)
 BuildRequires:	pkgconfig(hunspell)
@@ -314,6 +313,7 @@ BuildRequires:	cbindgen >= 0.19.0
 BuildRequires:	nss-static-devel
 BuildRequires:	clang-devel
 BuildRequires:	llvm-devel
+BuildRequires:	stdc++-static-devel
 %ifnarch %mips
 BuildRequires:	valgrind
 BuildRequires:	pkgconfig(valgrind)
@@ -435,11 +435,7 @@ ac_add_options --with-system-jpeg
 ac_add_options --with-system-png
 ac_add_options --enable-jemalloc
 ac_add_options --enable-replace-malloc
-#ac_add_options --with-system-ply
 ac_add_options --disable-crashreporter
-#ac_add_options --enable-gstreamer=1.0
-#ac_add_options --enable-media-plugins
-#ac_add_options --enable-dash
 ac_add_options --enable-pulseaudio
 ac_add_options --enable-webrtc
 ac_add_options --enable-system-ffi
@@ -451,9 +447,6 @@ ac_add_options --disable-webrtc
 %ifnarch %mips
 ac_add_options --with-valgrind
 %endif
-%ifarch %{x86_64} aarch64
-#ac_add_options --enable-rust-simd
-%endif
 %ifnarch aarch64
 ac_add_options --disable-elf-hack
 %endif
@@ -502,9 +495,9 @@ export MOZ_LEGACY_PROFILES="1"
 export LDFLAGS="%{build_ldflags}"
 
 %if %{with pgo}
-GDK_BACKEND=x11 xvfb-run ./mach build  2>&1 | cat -
+GDK_BACKEND=x11 xvfb-run ./mach build -v  2>&1 | cat -
 %else
-./mach build
+./mach build -v
 %endif
 
 %install