Note: After first install, you should click the triangle on the toolbar button, select a User-Agent in the popup menu, then the extension begin to working.
You also can add your user agent strings, please read the wiki.
You should know what User-Agent is, and what side effect after it is changed. Please don't complain or report any bug about website is broken.
This extension is host on Github
And the localization host on Transifex, feel free to help.
* add "Reset to default value" in preference panel
* update built-in user-agent list