Gave it a 5 star but taking it back Rated 3 out of 5 stars
I gave this a 5 star before in version 1.7. After that, "Show Prompt" was added but it does not work. I can still lose what I am doing at the middle of say, a form being filled up, if the browser suddenly restart without a warning.
Also, instead of a restart, how about implementing a feature to just minimize Firefox to release the memory and bring it back up? Users will just have to add "true" to config.trim_on_minimize in about:config. This is a much better solution than full browser re-start.