Rated 1 out of 5 stars

I love Firefox and I love all the effort people put into the main app and all the add-ons. I really do. Session Manager is OK if you save sessions manually but the crash session saver doesn't work if you're a power user, even when you check the "save session" flag under tools. So for example (and this is the most recent of many over the years and just tipped me over the edge to write this review) after a crash this morning, up popped the Session Manager asking me if I wanted to restart the crashed session (2W 90T). Clicked yes. 13 tabs were reloaded. Darned annoying.
[Firefox 49.0.2. MacBook Pro 512GB top end. MacOS Sierra 10.12] Had the same results with top-end Windows PCs also.

This review is for a previous version of the add-on (0.8.1.12).