I know that the Norton Toolbar (and Safe Web icons) won't work with the recent Firefox update (FF 41).
However, will my Norton Internet Security version 21.7 (I forgot the numbers that came after 7...it's the most recent patch of 21.7 I know) still work in general while using FF 41? I.e., will I still be safe using FF 41 as a browser and protected by my NIS overall even if I don't have the particular toolbar?