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

Log in
Add-on icon

Reviews for Owl - Dark Background

Owl - Dark Background by tk

4 Stars out of 5
5
65
4
24
3
15
2
6
1
12
Review by Mehmet Atif Ergun
by Mehmet Atif Ergun, 7 years ago
Works as described. No more migraines :) Wish it was available for Firefox for Android as well.