Firefox/Thunderbird not launching bug

[agents4jesus at gmail.com]

Hi,

This isn't the place to report bugs, but I thought I'd let anyone know 
who might be having this problem how to "fix" it.
Out of the blue, Firefox and Thunderbird decided to not launch. It was 
weird, because I hadn't really made any system changes recently.

Some things I did previously:
I installed RadioTray prior to noticing Firefox/Thunderbird not launching.
I am using numix-icon-circle icon theme.
I uninstalled, purged, rebooted and reinstalled Firefox, but it refuses 
to launch.
I tried downloading the tar.bz2 file and running it (not installed, more 
like a script), and it worked (but for some reason, it needed sudo).
I'm running Ubuntu 15.10.
Chromium was working fine.

I figured it out: Firefox/Thunderbird were trying to access ~/.gnome2
For some reason, its owner was root and nothing else had access (neither 
read nor write).
I then ransudo nautilus and made sure that "Others" were allowed to 
access the folder.
Now Firefox/Thunderbird are working.

Was this not the best way to fix the problem? Any ideas why F and T 
weren't working or why that the folder was locked?

Thanks,
Tony

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