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

Qqen
Tignit n uzegrir

Iceggiren i Global Speed

Global Speed sɣur POLYWOCK

4,7 n yitran ɣef 5
5
238
4
17
3
6
2
2
1
9
Icegger-it Lex
sɣur Lex, kaksi vuotta sitten
This is the speed Add-On that will stay active when the page is refreshed. This is the only one I have found so far that is persistent. The mappable keys for speed control are awesome as well.