does nothing in the latest few versions of firefox

If this add-on has a UI, it completely escapes me.

great experience

The option to change the global user agent "Apply (container or window)" doesn't work even on the website "webbrowsertools.com". Tested on Firefox 121.0.

Domain whitelist / blacklist does NOT work

when your bank has stupid expectations of updates switch your agent. Else run a virtual machine

Great at bypassing browser discrimination

Does nothing with Firefox 120/Ubuntu

f you youtube

To anyone having an issue with cloud-flare looping verification box, go to user agent options>white list mode and add www.cloudflare.com. This fixed the issue for me and hopefully for you.

Incredibly unintuitive, and does not seem to work on webbrowsertools.com.

Noticed YouTube stopped working for me today... this did the trick. Didn't have to disable any of my adblockers and now able to load videos, although my computer froze for a moment... thx

update: ok nvm not sure why but stopped working next day...

Completely unusable - interface and functioning is totally non-intuitive. Do not recommend.