I guess I figured it out. You have to replace (after backuping, for safety) the following three folders with the original ones previously saved from the system you want to clone:
~/.local/share/gnome-shell/extensions
~/.local/share/gnome-shell/quicklaunch
~/.config/dconf
Then logout and login.
Let me know if it works, or if you find better ways!
(tested on Ubuntu Gnome Shell Remix 12.04)
First you need to install Gnome-Shell which can be done either, by using Ubuntu Software Center and searching for GNOME Shell or by using Terminal and the proper apt-get install.. commands, depending on your OS and version number.
Example for Ubuntu 11.10
Example for Ubuntu 12.10
Example for Ubuntu 13.04
Also of interest might be the Gnome Wiki
Secondly you can download a program, called Advanced Settings (Tweak advanced Gnome3 settings), using Ubuntu Software Center again, which is very helpful as well to choose a gnome-shell theme, window and icon theme, manage fonts and font size and gnome-extensions.
It is also very helpful, like in the response-comments stated above, that you edit your question and add the following information:
- Ubuntu version
- Gnome Desktop Environment installed/or not
Source: Gnome Shell Extensions Homepage > About
I'm using GNOME 3. Why can't I install extensions?
If you are using GNOME 3.4 or newer and installation still doesn't work, check to make sure that the "GNOME Shell Integration" plugin is installed and enabled in your browser preferences. Some browsers have a feature, click-to-play, which make it so the plugin cannot start without user intervention. Make sure that either http://extensions.gnome.org is whitelisted for the click-to-play feature, or click-to-play is turned off entirely. Check your browser's help for more details.
If you are behind a proxy, make sure you have configured your proxy in both your browser's configuration dialog as well as GNOME's Network panel under System Settings. GNOME Shell Extensions needs both settings panels configured for the one-click installation to work.
Some distributions don't quite package GNOME correctly. Make sure that you have the unzip package installed.
If you have checked all of these solutions and are still having trouble installing extensions, please file a bug report using the link in the footer of the page, giving your GNOME version, distribution and version, what solutions you have already tried, as well as what the Looking Glass says in both the Extensions and Errors tabs. It's also helpful to have a copy of the ~/.xsession-errors file from the session that you installed extensions from.
Best Answer
for now you can not do that.
the extensions from the official site which still in alpha, cannot be modified using dconf. (at least some of them).
but you can still modify them, by going to the
extension.jsand.cssfiles in/home/username/.local/share/gnome-shell/extensions.