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I've installed the Gnome Shell in Ubuntu 12.04 and I want to change the "Shell Theme", But it doesn't allow me to do that.

The alert says something like:" The Gnome-Shell extension is not activated", and I want to install it with the console, But it returns me an error.

How can I solve this problem?

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Follow these steps:

Install GNOME Shell extensions & GNOME Tweak Tool:

  • Hit Alt+Ctrl+T to open terminal and run following commands:

    sudo apt-get install gnome-shell-extensions gnome-tweak-tool

Download Gnome Shell Theme:

You can find lot's of Gnome Shell themes on

How to change the Gnome Shell theme?

  • Once installed, Click on Activities on top panel and search for Advanced Settings and open it.
  • Under Shell Extensions enable User Themes Extension by clicking on ON/OFF switch.

enter image description here

  • Close the 'Gnome Tweak Tool' and reopen it, Open themes settings, Click on browse button in front of Shell Theme and select your custom theme, Once updated click on drop down menu in front of browse button and select your theme. You'll see the changes take effect immediately. That's it!

enter image description here

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Thank you so much, you saved me! – Ariel May 24 '12 at 2:31
gnome-shell-extensions does not appear to be available in 12.04. Do you know how to obtain it? – detly Aug 31 '12 at 0:57
@detly is it not installed by default? Install gnome tweak tool, can you see the shell extensions tab in it? – levesque Sep 7 '12 at 13:59
@levesque - I eventually found it on the website, but it takes a bit of work to get it to install on 12.04! – detly Sep 7 '12 at 15:07
Should I extract the zip or navigate to the zip? – Tim Apr 8 '15 at 8:20

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