After using Firefox and Thunderbird without problems for almost half a year on Ubuntu 15.04, they suddenly did not start any more, neither from starter, nor from terminal. Trying to start from terminal gives me the error
Could not create gnome accelerators directory '/home/<username>/.gnome2/accels': Permission denied. I was still able to start both programs using
sudo. After seeing that the entire
./.gnome2 was under root ownership I changed the ownership of
/home/<username>/.gnome2/accels to my user. Now I am able to start Firefox again, but for Thunderbird I still get the same error. So I changed ownership of the entire
./.gnome2 folder recursively, which enabled me to open both programs normally again, but some the programs do not access the right profiles now, as all my mail addresses are gone in Thunderbird as well as all Add-on setting in Firefox. Now I would like to know:
- What led to this problem?
- What would be the right way to resolve it?