Rated 5 out of 5 stars

Session Manager v 0.8.1.13pre20161130b is working with Firefox Nightly 53.0a1 (2016-12-03) (64-bit) in Win7.

Session Manager v 0.8.1.12 is not working with Firefox Nightly 53.0a1 (2016-12-03) (64-bit) in Win7.
Sessions window appears always empty, although sessions exist in folder.
Tested with e10s on/off

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