Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReviews for User Agent Switcher
288 reviews for this add-on
Rated 5 out of 5 stars
Althought it is stated that this add-on doesn't works on SeaMonkey 2.33, it is working.
Also, it is better to download the new updated user-agent strings throught the link provided on the Options dialog box.
Rated 5 out of 5 stars
This add-on is working well for me emulating a mobile device on my desktop to benchmark search engine results in preparation for Mobilegeddon on 21st April.
Rated 5 out of 5 stars
I use Waterfox as my main browser and there is one site I use for work that insist you use Internet Explorer. I tried using IETab addon which almost worked but wouldn't display the login boxes making it useless. With User Agent Switcher all I have to do is select IE as the user agent and the site is ully accessible with no need to fire up Internet Explorer. Great addon which makes things so much simpler for me.
Rated 4 out of 5 stars
The developer posted a comment in 2013 saying an update was coming in early 2014, but it never did. There are basic features, like the ability to set a default user agent and have it be persistent, that would be nice. The list of user agents is maintained by another person.
It seems the developer of this addon is either too busy or has lost interest.
Rated 5 out of 5 stars
Easy to use add-on and the most important is that it's working 100%!
Excellent! :)
Rated 4 out of 5 stars
Very light add-on.
Rated 3 out of 5 stars
Espero que en verdad funcione, pues uno a veces quiere ocultar la identidad, como lo puede hacer desde hace mucho con el navegador Opera... ¡el que siempre solía llevar la delantera!
Rated 5 out of 5 stars
This extension is really helpful
Rated 5 out of 5 stars
Like it very much. It's really useful and easy to use.
Rated 5 out of 5 stars
Love it. There are plenty of agents available to import. It is easy to use and easy to understand.
Rated 5 out of 5 stars
I'm not a developer but I find this extension very useful for my tests.
Rated 5 out of 5 stars
It really comes in handy.
Rated 5 out of 5 stars
Testing is easier with this extension. I like the easy way of downloading a big number of user agents and importing it to the addon. It's definitely worth it.
Rated 5 out of 5 stars
Very helpful addon, thank you!
Rated 5 out of 5 stars
It gives us a big hand for testing. No more different browsers opened for same reason. It's enough to check the user agent of any of your installed browsers, import them to this extension and go for it only in Firefox.
Rated 5 out of 5 stars
I love it, it's very useful and also you can import different user agents and make tests with them. You can track how your product will act in different cases. Awesome!
Rated 5 out of 5 stars
It is really helpful for testing.
Rated 5 out of 5 stars
Probably there are better extensions as the other users say, but I'm satisfied and I got used to working with this one very fast. Yes there are no instructions but this only image shows enough. All options are comprehensible and the design is intuitive. It does what I need to do.
Rated 2 out of 5 stars
Nothing like the Chrome user-agent switcher plugin, the latter allowing user agents to be selected based on URL patterns etc.
Rated 4 out of 5 stars
It works well. Getting it setup initially takes some time, since you have to hunt around to find the various User-Agents that you're interested in. Also would be nice to include an indicator icon to remind you when the extension is active.
To create your own collections, you must have a Mozilla Add-ons account.
