Merlin
User-Agent Modifier

User-Agent Modifier

edit user-agent string quickly and easily

User-Agent Modifier promo image
What is User-Agent Modifier?

User-Agent Modifier is a Firefox add-on that provides a convenient tool for editing user-agent strings. With this add-on, you can quickly modify the user-agent for any web request, as well as the window.navigator.userAgent value.

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Merlin
Stats
Stats date:
Users: 57 ▼ -4
Rating: 5.00 (1)
Version: 1.0.1 (Last updated: 2020-03-25)
Creation date: 2020-03-25
Weekly download count: 9
Firefox on Android: No
Manifest version: 2
Permissions:
  • storage
  • tabs
  • webNavigation
  • webRequest
  • webRequestBlocking
  • <all_urls>
  • *://*/*
Size: 109.24K
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Chrome-Stats Rank

# 11870 ▼ 402
Other rankings
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Other platforms

Not available on Chrome
Not available on Edge
Merlin
Summary
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The add-on allows you set user-agent string within the toolbar popup. It will change user-agent for every web request. It also change the window.navigator.userAgent value.

User reviews
Unlike the other User Agent "modifier" add-ons, this one just lets you modifier the UA! No hundreds of choices. No "by Website/URL"! No dialogs and fancy choices... It just allows modifying the UA like the old useragent override config setting.
by Firefox user 13617215, 2020-04-16
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Safety
Risk impact

User-Agent Modifier is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install User-Agent Modifier if you trust the publisher.

Risk likelihood

User-Agent Modifier has earned a fairly good reputation and likely can be trusted.

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Screenshots
User-Agent Modifier