Best tab manager of them all ! Rated 5 out of 5 stars

Very useful addon.
Wished improvement : It would be awesome when you start up Firefox (or you wake up your PC with Firefox opened) that some tabs were set back to a fixed web site or to be refreshed.

This review is for a previous version of the add-on (0.4.0.1.1-signed).  This user has other reviews of this add-on.