X-Agent

Chrome/Chromium extension to spoof user agent. Modifies both outgoing requests 'User-Agent' header and javascript object including navigator.appVersion!

This extension doesn't have any UI and its fairly dumb, yet it works great! But on the other hand it doesn't have any tracking/Analytics code in it, and its short enough for you to review literally in 1 minute.

For maximum privacy use chromium and disable all plugins on chrome://plugins/ as they may easily disclose your platform.

For fresh user agents visit: Most common User Agents (updates daily)

Structure

• manifest.json Standard extension configuration file
• background.js Contains the outgoing request sniffer and modify header according to the variable on page head
• xagentScript.js Small content script that inject the actual script
• xagent.js Modifies the javascript navigator object according to the variables in the top of the script

Usage

1. Download this project to a local folder on your machine (extracted in a folder)
2. Modify the wanted userAgent in background.js and xagent.js
3. Go to chrome://extensions/
4. Enable Developer mode
5. Click Load unpacked extension...
6. Select the folder you unpacked the file to
7. Optional: check 'Allow in incognito' (feel free to review the code before you do so)
8. That's it! check results by visiting Most common User Agents for outgoing requests and http://www.quirksmode.org/js/detect.html for javascript object.