Rated 5 out of 5 stars

This add-on has made life much easier: great management of restores after sudden crashes (whether due to Firefox itself or the system in which it operates), I have saved a number of sessions under "themes" of open tabs that enable me to restore aspects of research or areas of interest quickly (i.e., as opposed to locating individual bookmarks) and it's been easy to use. The review before mine seems a bit beyond the norm and I hope that they can resolve their issues (wherever they exist - perhaps not in this add-on), but comments here by the Developer have been moderate and helpful, from what I can see.

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