I recently installed 16.10. I have some problems with browsers! The Chromium only works when I open a new window with a temporary profile and Firefox gives this error:

Your Firefox profile cannot be loaded. It may be missing or inaccessible.

and the only way to run Firefox is running sudo firefox with Terminal. I removed and installed Firefox again but it didn't solve problem.

Does anyone know why this is happening?

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  • 1
    Do NOT run Firefox as root/with sudo! Never! You may run firefox -P to launch its profile manager, where you can create a new profile (and delete the old one if you don't need anything from it any more). – Byte Commander Oct 15 '16 at 18:13
  • @ByteCommander What is the problem with sudo firefox? I tried firefox -P but the result is Error: Access was denied while trying to open files in your profile directory. – 01000110 Oct 15 '16 at 18:20
  • Please show contents of ~ folder (your home folder). – user595510 Oct 15 '16 at 18:21
  • @MarkYisri I've added it to the post. Please check it. ^_^ – 01000110 Oct 15 '16 at 18:28
  • Now show the contents of the .mozilla folder that's in therre. – user595510 Oct 15 '16 at 19:35

Given you have run Firefox with sudo, and probably other programs not meant to be, you need to regain the ownership of files in your home directory so they are accessible without root permissions again. This is why you are getting the error:

Access was denied while trying to open files in your profile directory. 

If there is any output from find ~ \! -user $USER, and I'm sure there will be, you need to run the command:

sudo chown -R faezeh:faezeh ~faezeh
  • Thanks! Problem solved!! 👍 How am I supposed to know that I am allowed to use sudo or not? I'm not used to this OS yet! 😐 – 01000110 Oct 15 '16 at 19:35
  • 2
    Have a look at askubuntu.com/a/11766/425479. You should never use sudo on GUI programs, and should only use it for system maintenance if you know what you are doing. – Martin Thornton Oct 15 '16 at 19:56

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