diff --git a/.config/firefox/larbs.js b/.config/firefox/larbs.js
index b0c89ac..d24849e 100644
--- a/.config/firefox/larbs.js
+++ b/.config/firefox/larbs.js
@@ -39,3 +39,6 @@ user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 
 // This could otherwise cause some issues on bank logins and other annoying sites:
 user_pref("network.http.referer.XOriginPolicy", 0);
+
+// Disable Firefox sync and its menu entries
+user_pref("identity.fxaccounts.enabled", false);