How to Enable System Tray on Debian Buster Gnome 3

Enabling

1. 3. Accessing Extension

   Browse for Tray Icons GNOME 3 Extension Online

   Tray Icons Extension

   Enabling Tray Icons GNOME 3 Extension from Browser

   Open it with Firefox or Google-Chrome Web Browser.

2. 4. Enabling

   Then to Enable Tray Icons GNOME 3 Extension
   Just Slide the Widget in the Top-Right Corner:

   

   And finally, you should Find the System Tray Working!

   

3. 5. Managing

   Again to Manage GNOME 3 Extensions from Shell
   First, Install the GNOME Tweaks Tool:

   sudo apt install gnome-tweaks

   And then Open it from the Dashboard:

   

   Finally, you can easily and visually Manage all your GNOME 3 Extensions: