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

Log in
Add-on icon

Reviews for Simple Tab Groups

Simple Tab Groups by Drive4ik

4.1 Stars out of 5
5
1,042
4
195
3
97
2
84
1
231
Response by Drive4ik

Developer response

posted 6 years ago
Please, update Firefox to latest version v61 and after that update addon to STG v3.0 (not experimental)