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Is it possible to make Thunar my default file manager in Ubuntu 12.04 LTS successfully instead of quite slow Nautilus? I've installed Thunar and I must say there's really visible difference comparing to gnome-shell default manager. However when I marked off Nautilus from startup applications my desktop icons disappeared. Thanks for any help.

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Similar question, but focused on changing from Thunar back to Nautilus:… – Kevin Bowen Feb 22 '13 at 3:00
Have a look at: – green Apr 15 '13 at 14:02
in order to run "exo-preferred-applications" you must have installed "exo-utils" package (which is not by default in Saucy) – user223755 Dec 9 '13 at 15:45
  • Open a terminal (Ctrl+Alt+T).
  • Run the following command:

  • Then go to Utilities > Default File Manager, and choose the file manager you want to.

    enter image description here

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Worked like a charm in 12.04. Thanks – Yousuf Memon Jan 31 '14 at 13:31
Doesn't work in 15.04. I have both Thunar and Nautilus installed. – mxdsp Oct 11 '15 at 15:58

By the way you need to open it just one time, after that it would be Default File Manager for you.

However, you can change the default file manager and also restore to previous one, check the link: Default File Manager Official Documentation

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