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

Log in
Add-on icon

Reviews for YouTube™ Open Tabs Total Time

YouTube™ Open Tabs Total Time by Tomas Martty

3 Stars out of 5
5
1
4
0
3
0
2
0
1
1
Review by Duelbro
by Duelbro, 2 years ago
Works well for me, even tracks time left on videos, not just total time.
2 reviews
  • by Firefox user 13074501, 4 years ago
    Do not work for me. Shows NaN NaN Total Time