附加元件
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![[警告]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=58a99cbb-667a0970)
權限
關於此附加元件
Lets you switch DOM Inspector to an over/under vertical layout instead of the usual side-by-side panel layout. This can make it easier to read long values (like CSS rules) and to navigate deeply-nested tree structures.
This add-on doesn't do anything unless you have DOM Inspector installed too.
This add-on doesn't do anything unless you have DOM Inspector installed too.
