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

Qqen
Tignit n uzegrir

Iceggiren i User-Agent Switcher

User-Agent Switcher sɣur Linder

3,9 n yitran ɣef 5
5
172
4
48
3
22
2
15
1
46
Icegger-it Aseqdac Firefox 13908325
sɣur Aseqdac Firefox 13908325, 7 éve
Exactly what I was looking for. It allows me to use Firefox as another browser for sites (and only for those sites) that require IE or Chrome.