How to change user agent in Chrome js?

Question

JavaScript

I need to change the User Agent in chrome when the extension is running via JavaScript. Don't offer ready-made extensions, I need it for my project.
Thanks to everyone who responded

Answer 1

https://developer.mozilla.org/en-US/Add-ons/WebExt...
Catch the necessary requests and replace the UserAgent

Answer 2

And words to write, links not all open.