アドオン
![[警告]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=b00ed3ed-652d8172)
許可設定
このアドオンについて
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.
