Rated 5 out of 5 stars

Not the first one I install, but once I have AdBlock Plus, NoScript, possibly KeySnail and Tab Mix Plus that's generally when I install this one. Those are my standard minimum setup and Session Manager means that the firefox profile I'm using has been meant for serious use now, not just testing stuff.
Also, a method, other than "save all tabs", to archive certain windows (or "type of" windows - *cough*) is next to awesome - and though there's a nasty joke in there I'm not talking about just "questionable" stuff - I have saved windows folders, for example, for different subjects related to programming.

This review is for a previous version of the add-on (  This user has a previous review of this add-on.