[lakechfoma]

edit: apparently the exit _menu option_ cleanly closes all windows...woops.

I only use this to restart the browser cleanly when I have multiple windows open.

I use the "restore tabs/windows from last time" option and I don't see how else to close/restart ALL windows natively within FF. Guess I'll go back to killing it.

[bscphil]

Funny, I used to have an extension for restarting the browser, but those all broke when they left XUL behind. I care enough about it that I'm patching and building myself to get a restart button (and some other stuff).

[Rondom]

Under Linux, that's done by Ctrl+Q (provided that you have set up Firefox to restore your previous session on restart).