diff --git a/modules/desktop/firefox/default.nix b/modules/desktop/firefox/default.nix
index c41eacf..9d8d0a2 100644
--- a/modules/desktop/firefox/default.nix
+++ b/modules/desktop/firefox/default.nix
@@ -131,6 +131,7 @@
           "jid1-MnnxcxisBPnSXQ@jetpack" # Privacy Badger
           "frankerfacez@frankerfacez.com"
           "7esoorv3@alefvanoon.anonaddy.me" # LibRedirect
+          "{de621c74-2aa6-4c91-a2da-28d445b66bab}" # YouTube Livestreams Theater Mode
           "{cf3dba12-a848-4f68-8e2d-f9fadc0721de}" # Google Lighthouse
           "{446900e4-71c2-419f-a6a7-df9c091e268b}" # Bitwarden
           "{4ce83447-8255-43c2-b8f7-e02eb8c2cc39}" # Draw on Page