diff --git a/firefox.js b/firefox.js
index 9a4215e..228271a 100644
--- a/firefox.js
+++ b/firefox.js
@@ -26,7 +26,7 @@ user_pref("browser.backspace_action", 0);
 
 // Ctrl-Tab should not use recent order (it's confusing for me)
 user_pref("browser.ctrlTab.recentlyUsedOrder", false);
-// Don't allow detaching a tab by pulling it (from Firefox 74)
+// Don't allow detaching a tab by pulling it
 user_pref("browser.tabs.allowTabDetach", false);
 
 // Don't display fullscreen warning