To use these add-ons, you'll need to download Firefox.

Log in
Add-on icon

Reviews for Tab Session Manager

Tab Session Manager by sienori

4.2 Stars out of 5
5
720
4
201
3
48
2
42
1
115
Review by Firefox user 14826953
by Firefox user 14826953, 6 years ago
From now Firefox works only with signed add-ons.
Please sign your add-on.

PS temporary solution from Firefox docs
about:config xpinstall.signatures.required = false