UA Switcher Firefox

Download UA Switcher

By: mxdyeah
Download UA Switcher (current and past versions) for Firefox
Latest Version: 1.2 Updated: 9 months ago

Ready to install?

UA Switcher is available to install from Firefox Add-ons Store and for download from this page.
View source code
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Available versions

You can find the current and older versions of UA Switcher here. You can download the archived versions or inspect their source codes.

As a free user, you can download up to 3 latest versions.
Upgrade to download older versions
VersionDownloadSizeDownload countTimestamp
1.2XPI · ZIP · Source code81.58KB02025-10-01
1.0XPI · ZIP · Source code79.92KB02025-02-11
1.2 81.58KB
2025-10-01 · 0 downloads
1.0 79.92KB
2025-02-11 · 0 downloads

Install XPI file

An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.
  • Simply drag-and-drop the XPI into Firefox to install the add-on.

Install ZIP file

  • Download the UA Switcher ZIP file.
  • In Firefox browser, go to about:addons to open Add-ons Manager
  • Click on ⚙, Install Add-on From File
  • Select the UA Switcher ZIP file from step 1. UA Switcher is now installed on your browser.

Best UA Switcher Alternatives

Here are some Firefox add-ons that are similar to UA Switcher: