![HTitle (discontinued) 的圖示](https://addons.thunderbird.net/user-media/addon_icons/386/386325-64.png?modified=1508859609)
HTitle (discontinued) 3.4.1-signed.1-signed 需要重新啟動
作者: Aleksandr Seleznev
Hide title bar if window is maximized.
This add-on has been discontinued!
Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.
關於此附加元件
Please do not use the legacy mode with GNOME Shell!