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Firefox disabled this extension because according to him it is obsolete, but why Firefox does not do its own business???
it makes douban.com website broken.
can't click on stars with this add-on
don't understand why
try this site https://movie.douban.com/subject/26821003/ and click 「想看」or「在看」or「看过」button，and click on stars in the window pop out. the stars should be lightend up at normal .
Не работает на Android 7 Firefox 57.0.4
It really works! I loved it..
Very useful add on!! 100% recomended
Useless for developers. There's very few predefined user agents and there's no easy way to add your own
You'd think there's be an option to fake your Firefox version, too. I remember there being an extension that let me do this and thought this was it. Too bad.
Android Firefox not work...
I noticed it does not take effect on https://addons.mozilla.org, I don't know if it is a feature or a bug.
Recommendation: instead of displaying deprecated mobile operating systems like Symbian and Firefox OS, the addon should add Sailfish OS to the list (maybe BlackBerry also).
It would be good to add the possibility to enter multiple custom user agent instead of just one, like this addon (not supported with latest Firefox): https://addons.mozilla.org/en-US/firefox/addon/user-agent-switcher/
I installed this on FF 57 running on Fedora 25. No matter how I configured it, it showed that I was running FF 52 under Windows, even after I restarted FF. I uninstalled it, restarted FF and no change. I had to go into about:config to undo the damage. Utterly worthless.
It works and support Firefox Quantum 57.0.
I used Random Agent Spoofer which does not work in FF57. This extension is about as good. Does not randomize automatically, but easily changed with a few clicks. Just as with R. A. S., Youtube knows Google's Chrome browser and will not allow you in the site. Just spoof another browser temporarily and go on.
Fully working on FF 57 (aka quantum bulls***), new interface makes is super easy to use.
very good extension, works for my use case
Switched from Random Agent Spoofer after the update to Firefox 57. Missing a lots of functions ...
Also why can't I use a weird OS/Browser combo like FreeBSD/Edge? And a timer is missing, and a random button ...
I've installed and tested it on Firefox (Android) 57.0. No matter what I select from the web-extension popup, my useragent remains unchanged at useragent-detection websites.