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

Log in
Add-on icon

Reviews for LeechBlock NG

LeechBlock NG by James Anderson

4.8 Stars out of 5
5
950
4
64
3
22
2
7
1
23
Review by Firefox user 13685014
by Firefox user 13685014, 5 months ago
The best extension or program of this kind. It's free and open source and has good performance.