I upgraded my Dell Optiplex 9010 to Ubuntu 18.04 from Ubuntu 16.04. None of my GNOME web-browser-extensions, used for managing and installing extensions, work; neither the ones I have installed on Chromium, Chrome, or Firefox.

This has only been the case since my upgrade from 16.04 > 18.04.

This is what I see in every browser I open the URL on:

Although GNOME Shell integration extension is running, native host connector is not detected.

enter image description here

How can I fix this?


You need to install chrome-gnome-shell package so that your browser can detect your running GNOME shell version. To install it run

sudo apt install chrome-gnome-shell
  • I find, from reading the terminal in the Ubuntu installer as fast as one can, that Ubuntu "cleans up" a lot of useful, user-installed files when upgrading. – Robert Sederholm May 10 '18 at 22:39
  • Yeah, done this and it's still saying the native host connector is not found. Any ideas what I should do from this point? – Ceisc May 28 '18 at 19:45
  • @Ceisc You can manually install extensions following this answer: askubuntu.com/a/1029180/480481 and manage them using GNOME Tweaks. – pomsky May 28 '18 at 20:24
  • 1
    OK, so it turns out the chrome-gnome-shell doesn't work if you install the version of Chromium that comes from the "Ubuntu Software" manager package, but does work if you install Chromium via apt. – Ceisc May 28 '18 at 21:28

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