User-Agent Switcher: Essential Tool for Web Developers

User-Agent Switcher is a Firefox extension designed for web development and testing. This free tool allows users to change the User-Agent header of their browser, enabling them to simulate different browsers or devices. This feature is particularly useful for developers who need to test how their websites appear on various platforms or for users who encounter content restrictions based on their browser type. In addition to altering the User-Agent, it also modifies several navigator properties to enhance emulation accuracy.

The extension is equipped with a built-in Network Analyzer and allows users to view their current User-Agent header. It employs a bundled version of BrowsCap to facilitate seamless emulation of User-Agent values, ensuring a high level of accuracy without requiring extensive user configuration. Although primarily in maintenance mode, the extension remains a valuable resource for both developers and users seeking to navigate web content more flexibly.

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App specs

  • License

    Free

  • Version

    1.4.95
  • Latest update

  • Platform

    firefox

  • Downloads

    8

  • Size

    4.45 MB

  • Developer

Program available in other languages



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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is User-Agent Switcher safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Wednesday, January 7, 2026
Scan provider
VirusTotal · Full report

File Integrity

File
1.4.95.xpi
SHA256
2ad824fcc6db23694c4258cef6b7e08ff7aeb2e067f4cd852c1424c3c42489e3
SHA1
a0903499085704d8a90b46a2d8bbcf4ac9ff61f0

Softonic security commitment

User-Agent Switcher has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center