如果沒有安裝Tweaks請先安裝，命令如下：
sudo apt install gnome-tweak-tool
1. Use gnome-shell-extensions package [easiest and safest way]
sudo apt install gnome-shell-extensions
2. Install GNOME Shell extensions from a web browser
安裝擴展請去下面這個鏈接
GnomeExtensions
在此之前，需要安裝兩個軟件
Step 1: Install browser add-on
如果不裝，去上面的鏈接上會提示下圖
For Google Chrome, Chromium, and Vivaldi: Chrome web store.
Step 2: Install native connector
如果不執行這一步，會報錯
“Although GNOME Shell integration extension is running, native host connector is not detected. Refer documentation for instructions about installing connector”
執行如下命令安裝
sudo apt install chrome-gnome-shell
現在就可以去安裝了
原文鏈接：https://itsfoss.com/gnome-shell-extensions/