1 files changed, 3 insertions, 2 deletions
diff --git a/pkgs/applications/networking/browsers/firefox/packages.nix b/pkgs/applications/networking/browsers/firefox/packages.nix
index 58a6586c4d5b..f386eacfd4fc 100644
--- a/pkgs/applications/networking/browsers/firefox/packages.nix
+++ b/pkgs/applications/networking/browsers/firefox/packages.nix
@@ -30,14 +30,15 @@
 
   firefox-beta = buildMozillaMach rec {
     pname = "firefox-beta";
-    version = "120.0b9";
+    version = "121.0b3";
     applicationName = "Mozilla Firefox Beta";
     src = fetchurl {
       url = "mirror://mozilla/firefox/releases/${version}/source/firefox-${version}.source.tar.xz";
-      sha512 = "7ac5562ce393ea84663eac5c6ee1a0ca527ff4a8a9ec6aaaef37213ff071076846949e80af21d95ec8e32d3cbc740b772a9d7cc54965b7bbc8e015da22ae927f";
+      sha512 = "95dd68c50af5784c44e40ad3a8ac6b4fb259fa8f56bc5e5de940d03dec1838b143712680826b4d260fefdad314464d24679911f21b1095512a86cdf4eb2648c9";
     };
 
     meta = {
+      changelog = "https://www.mozilla.org/en-US/firefox/${lib.versions.majorMinor version}beta/releasenotes/";
       description = "A web browser built from Firefox Beta Release source tree";
       homepage = "http://www.mozilla.com/en-US/firefox/";
       maintainers = with lib.maintainers; [ jopejoe1 ];