Rated 5 out of 5 stars

The pack-rat in me says thanks, as it lets me know when I'm getting a little to full up with tabs.

At least now I'll know in advance why Firefox and my PC have bogged down--my record is 658 open tabs (Session Manger told me after the fact.)

Thanks.

This review is for a previous version of the add-on (1.9.9.1-signed).