This extension can switch the user agent of a browser. and it allows you to find all HTTP URLs.

Control the user agent identity reported by your browser.

User Agent Switcher可以立即切换浏览器的useragent，方便快捷美观

Change your user agent quickly and easily

Let the users modify their user agent string

Helps users to change browser user agent string across all websites

Change your user agent quickly and easily

Mitigate risk of social engineering waterhole attacks by changing user agent string

Simplest way to switch between user-agents in your browser!