Rated 5 out of 5 stars

Unfortunately there is no perfect solution to guarantee saving current session 100% certainly on crash for technical reasons. Not on any browser, it's simply impossible.
That being said, this plugin is the most awesome and reliable on achieving just that. Failure to load previeous session after crash is virtully no-situation - and when it happens you most of time get close enough with latest auto-save.

Thank you - the authors have done their best, and deserve humongous thanks - and top rating!

This review is for a previous version of the add-on (