Ubuntu 18.04 Install GNOME Extensions Manually
How to Install GNOME Extension from Zip on Ubuntu 18.04 Bionic LTS GNU/Linux – Step by step Tutorial.
And the Gnome Shell Extensions for Ubuntu 18.04 are small Pieces of Code written by Third Party Developers that Modify the way GNOME works.
Finally, this guide includes detailed instructions about to Installing the Best GNOME Shell Extensions.

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1. Launching Shell Emulator
Open a Terminal window
Ctrl+Alt+t on desktop
(Press “Enter” to Execute Commands)
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