diff --git a/browser_patches/firefox-beta/BUILD_NUMBER b/browser_patches/firefox-beta/BUILD_NUMBER
index 16d023d249..7251ba35f9 100644
--- a/browser_patches/firefox-beta/BUILD_NUMBER
+++ b/browser_patches/firefox-beta/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1294
-Changed: lushnikov@chromium.org Wed 13 Oct 2021 06:13:56 PM PDT
+1295
+Changed: lushnikov@chromium.org Thu Oct 14 01:39:34 PDT 2021
diff --git a/browser_patches/firefox-beta/build.sh b/browser_patches/firefox-beta/build.sh
index a9eb07e827..b9416097df 100755
--- a/browser_patches/firefox-beta/build.sh
+++ b/browser_patches/firefox-beta/build.sh
@@ -2,12 +2,8 @@
 set -e
 set +x
 
-RUST_VERSION="1.51.0"
+RUST_VERSION="1.53.0"
 CBINDGEN_VERSION="0.19.0"
-# Certain minimal SDK Version is required by firefox
-MACOS_SDK_VERSION="10.12"
-# XCode version can be determined from https://en.wikipedia.org/wiki/Xcode
-XCODE_VERSION_WITH_REQUIRED_SDK_VERSION="8.3.3"
 
 trap "cd $(pwd -P)" EXIT