diff --git a/common/repositories.bzl b/common/repositories.bzl
index b308212a12cae..08661949492d1 100644
--- a/common/repositories.bzl
+++ b/common/repositories.bzl
@@ -50,8 +50,8 @@ js_library(
 
     http_archive(
         name = "linux_beta_firefox",
-        url = "https://ftp.mozilla.org/pub/firefox/releases/140.0b7/linux-x86_64/en-US/firefox-140.0b7.tar.xz",
-        sha256 = "a6e232e676e9b1490d673745da8221614e7cab68ed73003e41d6a07d91062af8",
+        url = "https://ftp.mozilla.org/pub/firefox/releases/140.0b8/linux-x86_64/en-US/firefox-140.0b8.tar.xz",
+        sha256 = "1fa8bcb1e242ffbad091b3ee7067ece582d34508db394e656832ab07b058e96e",
         build_file_content = """
 load("@aspect_rules_js//js:defs.bzl", "js_library")
 package(default_visibility = ["//visibility:public"])
@@ -72,8 +72,8 @@ js_library(
 
     dmg_archive(
         name = "mac_beta_firefox",
-        url = "https://ftp.mozilla.org/pub/firefox/releases/140.0b7/mac/en-US/Firefox%20140.0b7.dmg",
-        sha256 = "24a756a979ef4c23e223002e8cb748ad69236f023f0ba0168d98add4f5d0cb8e",
+        url = "https://ftp.mozilla.org/pub/firefox/releases/140.0b8/mac/en-US/Firefox%20140.0b8.dmg",
+        sha256 = "7e648f5e0305a6abedb698ea5b29971cd1eb58225b998baa85a82d94bcf75342",
         build_file_content = """
 load("@aspect_rules_js//js:defs.bzl", "js_library")
 package(default_visibility = ["//visibility:public"])