Single base extensions GNOME Shell

We all used to expand the functionality of the browser with add-ons. And the GNOME developers offer us the same thing to do with the graphical shell. Any GNOME 3 user can go to https://extensions.gnome.org/ and install any extension they like. To do this, just click to switch, agree with the installation and restart the shell.

In addition, anyone can add their extension to the database and it will be published after verification. I write a post for reasons that the more people know about the base extensions, the faster it will be filled and developed.
PS Probably not in that blog. Transfer if not right.
PPS Posting this news to any other resources and any information from the community is strongly encouraged.