User-Agent Switcher and Manager
Spoof websites trying to gather information about your web navigation—like your browser type and operating system—to deliver distinct content you may not want.
User-Agent Switcher and Manager: Customize Your Browser Identity
'User-Agent Switcher and Manager' is a Firefox extension that facilitates privacy and customization of user experience. It allows you to alter your browser's 'user-agent' string, making it difficult for websites to gather specifics about your browsing setup. This tool is particularly handy for controlling the content that websites deliver to you, based on your apparent operating system or device type. From accelerating loading speeds by indicating a mobile device, to improving privacy by randomizing your user-agent string, this add-on is a powerful tool for modern internet users.
Add-on stats
Weekly download count: 6,714
Firefox on Android: No
Risk impact: High risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- storage
- <all_urls>
- webNavigation
- webRequest
- webRequestBlocking
- contextMenus
Size: 771.24K
URLs: Website
Ranking
# 223 ▼ 1
Other platforms
Not available on Android
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Add-on summary
Usage example: You can alter your user-agent string to indicate you’re on a mobile device if you prefer seeing mobile versions of sites so they load quicker.
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This extension allows you to spoof your browser "user-agent" string to a custom designation, making it impossible for websites to know specific details about your browsing arrangement.
Overviews: https://www.youtube.com/watch?v=-aVFxvF3N_E https://www.youtube.com/watch?v=4M6_Zc4o1MQ
Notes:
- You can easily set custom "user-agent" strings from the toolbar popup
- The extension uses a two-factor technique to mimic your default "user-agent" string, which is the most reliable method
- The extension does not use any resources when it is not spoofing the user-agent
- The extension enables user-agent spoofing on specific domains only; it is conversely possible to exclude certain domains from spoofing. Check the Options page for more info.
User reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- Can improve video playback issues on platforms like YouTube.
- Fixed various problems for some users after installation.
Cons
- Does not work properly, with several users reporting functionality issues.
- Complicated and unclear user interface.
- Lack of support for different languages.
Most mentioned
- Functionality problems after updates.
- Overly complicated menu and settings.
- Inconsistent user agent switching.
User reviews
by Firefox user 18692641, 2024-12-16
Useless. Whitelist doesn't work. If I put YouTube in the Whitelist, and set the add-on to use Whitelist, the icon is still off when using YouTube. It seems to maybe help when manually turning it on, but ain't no body got time fo that.
by SBTL, 2024-12-16
by Firefox user 18731342, 2024-12-14
Add-on safety
Risk impact
User-Agent Switcher and Manager requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
User-Agent Switcher and Manager has earned a good reputation and can be trusted.
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