I have Firefox set to "open previous windows and tabs" on startup. It used to just work perfectly. All my previous tabs and windows would be restored, and it would give me a message when I quit. But the behavior has changed and it doesn't work at all. AND it doesn't even ASK me if I want to save windows when it quits. It just exits! It also told me (the first time I looked a settings in the latest release) that I need to select the profile to automatically start. But even doing that doesn't actually save my tabs. The functionality appears totally broken.
