diff --git a/firefox/.signature b/firefox/.signature
index a5ddaff35..0b7cf4a4f 100644
--- a/firefox/.signature
+++ b/firefox/.signature
@@ -1,7 +1,9 @@
 untrusted comment: verify with /etc/ports/contrib.pub
-RWSagIOpLGJF376UBZwv6BYV6JuyRL8jnRNXfVaZFtqbKl/rRHhCKCS8h1iYDvR7cD27rFca1PNkNHKbn0Qn0CRPl/sh1sjg3gU=
-SHA256 (Pkgfile) = 373363dded4c117d099b6fc90818062a047111d34a5e8f98ac22b8d39330b775
+RWSagIOpLGJF3yUgdfAY4vHtMV6CevDODZBEnbom03jvyzzrd6tQSqzkY3l2LwLPbG747qPSpKAFu8WFGsnaZgkEaG2cL5PIKg0=
+SHA256 (Pkgfile) = dbc5d23540e2598e3f300e84b15dd88e836d1a6f3ad853e78b8b3d684eb03c52
 SHA256 (.footprint) = 9df33aad85e11ded757ac494b9d53f882cade01f805dacc3b52e1ed602436bbb
 SHA256 (firefox-75.0.source.tar.xz) = bbb1054d8f2717c634480556d3753a8483986af7360e023bb6232df80b746b0f
 SHA256 (firefox.desktop) = 8ba3439f3dfc5cab883641969c93d8d15f8f20d7188d9568346b2edad52d6f91
+SHA256 (0001-Use-remoting-name-for-GDK-application-names.patch) = 5f7ac724a5c5afd9322b1e59006f4170ea5354ca1e0e60dab08b7784c2d8463c
+SHA256 (0001-Bug-1623885-Add-subsystem-to-Mesa-sandbox-policy.patch) = ebb169804750ddc10a4801ed6ddb37356331bbf76615f58eb29de2e6e15ee930
 SHA256 (fix-unicode-errors.patch) = 47fa576aa3e2dcb1f1d48fa504893bcbe31e7a5fef7c1f2e84570a2692c6794d
diff --git a/firefox/0001-Bug-1623885-Add-subsystem-to-Mesa-sandbox-policy.patch b/firefox/0001-Bug-1623885-Add-subsystem-to-Mesa-sandbox-policy.patch
new file mode 100644
index 000000000..eb9667476
--- /dev/null
+++ b/firefox/0001-Bug-1623885-Add-subsystem-to-Mesa-sandbox-policy.patch
@@ -0,0 +1,35 @@
+From 0447215abf836bbb8eef53aeccf029dd40bd1a52 Mon Sep 17 00:00:00 2001
+From: Jeff Gilbert <jgilbert@mozilla.com>
+Date: Sun, 12 Apr 2020 21:21:32 +0000
+Subject: [PATCH] Bug 1623885 - Add "subsystem" to Mesa sandbox policy to fix
+ libdrm-2.4.101+. r=gcp, a=RyanVM
+
+Differential Revision: https://phabricator.services.mozilla.com/D70579
+---
+ .../linux/broker/SandboxBrokerPolicyFactory.cpp        | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
+index 3aa7cf27e353..0b3948ebd92e 100644
+--- a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
++++ b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp
+@@ -86,10 +86,12 @@ static void AddMesaSysfsPaths(SandboxBroker::Policy* aPolicy) {
+             // broker.  To match this, allow the canonical paths.
+             UniqueFreePtr<char[]> realSysPath(realpath(sysPath.get(), nullptr));
+             if (realSysPath) {
+-              static const Array<const char*, 7> kMesaAttrSuffixes = {
+-                  "revision",         "vendor", "device", "subsystem_vendor",
+-                  "subsystem_device", "uevent", "config"};
+-              for (const auto attrSuffix : kMesaAttrSuffixes) {
++              constexpr const char* kMesaAttrSuffixes[] = {
++                  "config",    "device",           "revision",
++                  "subsystem", "subsystem_device", "subsystem_vendor",
++                  "uevent",    "vendor",
++              };
++              for (const auto& attrSuffix : kMesaAttrSuffixes) {
+                 nsPrintfCString attrPath("%s/%s", realSysPath.get(),
+                                          attrSuffix);
+                 aPolicy->AddPath(rdonly, attrPath.get());
+-- 
+2.26.2
+
diff --git a/firefox/0001-Use-remoting-name-for-GDK-application-names.patch b/firefox/0001-Use-remoting-name-for-GDK-application-names.patch
new file mode 100644
index 000000000..165a532f4
--- /dev/null
+++ b/firefox/0001-Use-remoting-name-for-GDK-application-names.patch
@@ -0,0 +1,55 @@
+From 83f234464554c7f4393cd1dbdeb3a68d3ae0ccae Mon Sep 17 00:00:00 2001
+From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
+Date: Mon, 25 Mar 2019 20:30:11 +0100
+Subject: [PATCH] Use remoting name for GDK application names
+
+---
+ toolkit/xre/nsAppRunner.cpp | 6 +-----
+ widget/gtk/nsAppShell.cpp   | 7 +++----
+ 2 files changed, 4 insertions(+), 9 deletions(-)
+
+diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp
+index 984b998133bd..b6c9f013940c 100644
+--- a/toolkit/xre/nsAppRunner.cpp
++++ b/toolkit/xre/nsAppRunner.cpp
+@@ -3746,11 +3746,7 @@ int XREMain::XRE_mainStartup(bool* aExitFlag) {
+   // consistently.
+ 
+   // Set program name to the one defined in application.ini.
+-  {
+-    nsAutoCString program(gAppData->name);
+-    ToLowerCase(program);
+-    g_set_prgname(program.get());
+-  }
++  g_set_prgname(gAppData->remotingName);
+ 
+   // Initialize GTK here for splash.
+ 
+diff --git a/widget/gtk/nsAppShell.cpp b/widget/gtk/nsAppShell.cpp
+index 0daa78fdbbad..49038d0bb1c8 100644
+--- a/widget/gtk/nsAppShell.cpp
++++ b/widget/gtk/nsAppShell.cpp
+@@ -24,6 +24,7 @@
+ #  include "WakeLockListener.h"
+ #endif
+ #include "gfxPlatform.h"
++#include "nsAppRunner.h"
+ #include "ScreenHelperGTK.h"
+ #include "HeadlessScreenHelper.h"
+ #include "mozilla/widget/ScreenManager.h"
+@@ -175,10 +176,8 @@ nsresult nsAppShell::Init() {
+     // option when program uses gdk_set_program_class().
+     //
+     // See https://bugzilla.gnome.org/show_bug.cgi?id=747634
+-    nsAutoString brandName;
+-    mozilla::widget::WidgetUtils::GetBrandShortName(brandName);
+-    if (!brandName.IsEmpty()) {
+-      gdk_set_program_class(NS_ConvertUTF16toUTF8(brandName).get());
++    if (gAppData) {
++      gdk_set_program_class(gAppData->remotingName);
+     }
+   }
+ 
+-- 
+2.24.0
+
diff --git a/firefox/Pkgfile b/firefox/Pkgfile
index 8fec200e2..d2fb0709c 100644
--- a/firefox/Pkgfile
+++ b/firefox/Pkgfile
@@ -6,14 +6,22 @@
 
 name=firefox
 version=75.0
-release=1
+release=2
 source=(https://ftp.mozilla.org/pub/firefox/releases/$version/source/firefox-$version.source.tar.xz
 	firefox.desktop
+	0001-Use-remoting-name-for-GDK-application-names.patch
+	0001-Bug-1623885-Add-subsystem-to-Mesa-sandbox-policy.patch
 	fix-unicode-errors.patch)
  
 build() {
 	cd firefox-$version
 
+	# https://bugzilla.mozilla.org/show_bug.cgi?id=1530052
+	patch -p1 -i $SRC/0001-Use-remoting-name-for-GDK-application-names.patch
+
+	# https://bugzilla.mozilla.org/show_bug.cgi?id=1627486
+	patch -p1 -i $SRC/0001-Bug-1623885-Add-subsystem-to-Mesa-sandbox-policy.patch
+
 	# https://bugzilla.mozilla.org/show_bug.cgi?id=1532169
 	patch -p1 -i $SRC/fix-unicode-errors.patch
 
@@ -49,6 +57,8 @@ cat <<- EOF > .mozconfig
 	ac_add_options --enable-system-pixman
 	ac_add_options --enable-alsa
 	ac_add_options --enable-optimize
+	ac_add_options --enable-release
+	ac_add_options --enable-rust-simd
 	ac_add_options --disable-debug-symbols
 	ac_add_options --disable-pulseaudio
 	ac_add_options --enable-official-branding