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User-Agent Switcher – Get this Extension for Firefox (en-US)
User-Agent Switcher and Manager – Get this Extension for Firefox …
User-Agent Switcher PRO – Get this Extension for Firefox (en-US)
How to Change User-Agents in Chrome, Edge, Safari & Firefox
GitHub - ray-lothian/UserAgent-Switcher: A User-Agent spoofer …
User-Agent Switcher and Manager version history - 25 versions
How To Change User Agent in Firefox - Winaero
How To Change the User Agent String in Firefox - How-To Geek
How to reset the default user agent on Firefox | Firefox Help
How to change your user agent for Firefox