Rated 5 out of 5 stars

Updates needed for Quantum Firefox, Firefox 57 and latest versions.

This review is for a previous version of the add-on (0.8.1.13). 

Rated 4 out of 5 stars

I must say congratulations to the developers. The only problem is that after an unexplained cleared from Firefox, in some cases, it do not back exactly as it was on the last session was because the session manager did not automatically save the last session, and therefore, I have to keep saving it manually.

This review is for a previous version of the add-on (0.8.1.9).