… huh, my delete system 32 ptsd got the best of me, that's actually an useful combination.

I tend to use CTRL+F4, CTRL+W is way more comfortable.

If there's a way to close all tabs and windows I am also have some uses, tricking the browser into keeping 400 tabs open when it can only handle 300 at most (reopen browser, restore open tabs, but they won't actually load until you click them), so far I actually use a command like "taskkill /f /im firefox.exe" to accomplish that.