![Layout Switcher 的图标](https://addons.thunderbird.net/static/img/addon-icons/default-64.png)
Layout Switcher 3
作者: Geoff Lankow
Switches the mail layout to 'wide view' when on a large enough monitor.
关于这个附加组件
Switches the mail layout to 'wide view' when on a large enough monitor.
Switches the mail layout to 'wide view' when on a large enough monitor.