Uninstalling some GNOME Shell extensions does not work

[aleb]

I use Google Chrome with the "GNOME Shell integration" browser plugin. I go to https://extensions.gnome.org/local/ and I click the round X button for the "windowNavigator" extension. It is removed from the list and there is a magenta notification at the top of the page: "You uninstalled windowNavigator.". I reload the page and it's still there.

Same happens with "Workspace Indicator" and "Hello, World!".

It did work fine uninstalling others.

[nE0sIghT]

Can you try Epiphany (GNOME Web) browser and/or Firefox with NPAPI plugin? Is it reproducible with them?

[aleb]

In Epiphany it works strange, one time it failed to detect GNOME3 and the next time it showed fine the extensions.

In Firefox nothing happens if I click the round X button.

[nE0sIghT]

So neither Epiphany nor Firefox works for you?
Please also try GNOME Tweak Tool.

[aleb]

The Remove buttons are disabled:

[nE0sIghT]

The Remove buttons are disabled

That means those extensions are system. To uninstall them you must use your package manager.
Extensions package is often named gnome-shell-extensions.

I also proposed a patch for extensions.gnome.org some time ago to remove uninstall button for system extensions and explicitly mark them on site.

[nE0sIghT]

I merged fix for extension.gnome.org: GNOME/extensions-web@a18e385

It will be deployed soon.

[nE0sIghT]

Deployed several days ago