Feature: auto-ask-to-restore after crash caused by opening tons of tabs

[NeatWolf]

Hi there!

It's not the first time it happens, so I hope it's going to be fixed, asap.

Sometime I have very large groups of tabs, and sometimes firefox crashes when opening it.

Either put a limit on tab opened at the same time, distribute the loading over time load them in batches after some delay, ask if the user really wants to open so many tabs AND please provide an easy way to recover the database on booting up again, since, for some reasons, it saves the tabs when crashing :P

Maybe comparing the last 2 backups it could detect a huge number of changes and ask the user if he wants to revert the backup to a certain one, without having to browse in some hidden and nested folder :P