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I'm trying to install true-color-invert available at the GNOME Extensions website or similar tools. It does not appear in the Extensions application on my Debian nor the gnome-extensions list which returns "Extension... Does Not Exists".

  1. downloaded for shell version 3.38 extension version 11, because gnome-shell --version returns GNOME Shell version is 3.38.6.
  2. unzipped, and made sure the directory of the unzipped files had the same name as the uuid in metadata.json: true-color-invert@jackkenney.
  3. moved the directory to the folder of system-wide extensions: /usr/share/gnome-shell/extensions/, where I also affirmed the location of extensions readily appearing in the Extensions application.
  4. reboot

What am I missing?

edit 1. I also tried creating the directory ~/.local/share/gnome-shell/extensions/ and putting the extension here.

edit 2. gnome-extensions install true-color-invertjackkenney.v11.shell-extension.zip 5 gave similar result as edit 1. did make the extension available.

Other report similar issues. 6 7

edit 3. it also does not install using preinstalled chrome-gnome-shell and the to-be installed browser extension for Firefox, although the website prompts "Your native host connector do not support following APIs: v6." that some say nevertheless should not be an issue on Ubuntu.

edit 4. I tried multiple different extensions on the GNOME web. None worked. Someone has written at program at github that arguably fixes it, but I am a bit hesitant.

edit 5. tried installing flatpak, then Extension Manager. But packages still won't install.

Johan
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  • Could be a permissions issue. Have you checked them/tried chmodding? – telometto Apr 18 '23 at 19:15
  • @telometto thanks for commenting. I’m quite new with linux, so it would be very helpful would you be more specific? – Johan Apr 18 '23 at 19:43
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    Sure! Open a terminal and do a `stat --format '%a' /path/to/folder`, this will give you the numeric value of the permissions of the folder (e.g. `644`). If the permissions aren't set properly, you can change them by using `chmod -R +x /path/to/folder`. *NOTE:* `+x` gives execute permissions on everything inside the folder, so it may impose a security risk, so be aware. Alternatively, you could check for discrepancies among the ownerships of all the subdirs inside the extension dir by using `ls -la` and eventually just `chown -R yourUser:yourGroup /path/to/folder`. – telometto Apr 19 '23 at 11:35
  • Thanks @telometto, would you run this on the directory in which files to be installed are? such as `.deb` files, zip` files or `unzip`ped files? `stat --format '%a /path/to/directory'` returns 755. – Johan Apr 20 '23 at 08:25

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