附加组件
要尝试这里成千上万的附加组件，下载 Mozilla Firefox，一个快速、自由的上网工具！
关闭
User Agent Switcher 0.7.3.1-signed.1-signed 需要重开
作者： chrispederick
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
![[警告]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=58a99cbb-667a0970)
权限
关于这个附加组件
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
