diff --git a/pkgs/additional/firefox-extensions/default.nix b/pkgs/additional/firefox-extensions/default.nix
index 66d5e27a..143d2cf2 100644
--- a/pkgs/additional/firefox-extensions/default.nix
+++ b/pkgs/additional/firefox-extensions/default.nix
@@ -145,8 +145,8 @@ in (lib.makeScope newScope (self: with self; {
       extid = "webextension@metamask.io";
       pname = "ether-metamask";
       url = "https://github.com/MetaMask/metamask-extension/releases/download/v${version}/metamask-firefox-${version}.zip";
-      version = "11.16.8";
-      hash = "sha256-32KkO72afC9Cm0siiobkCZKmfZqm8/Z6SJK8KwNdeTw=";
+      version = "11.16.9";
+      hash = "sha256-IYRCR0jX2agMHj/Pnnc+q6X92yrhdIJF+uRtw7C2T2k=";
     };
     fx_cast = fetchVersionedAddon rec {
       extid = "fx_cast@matt.tf";