Tiện ích
![[Cảnh báo]](https://addons.thunderbird.net/static/img/developers/test-warning.png?b=e493d535-665fac01)
Sự cho phép
Giới thiệu về Tiện ích này
View and Edit source of HTML element.
Use the button on status bar to activate/desactivate and the double click or the context menu to edit source of the selected element
Use the button on status bar to activate/desactivate and the double click or the context menu to edit source of the selected element
