If I try to launch firefox I get:

Bus error (core dumped)

When, until last week, I had Gnome 12.04 it was the same... then, during the upgrade (I now have 14.04) Firefox started working (without Flash Player). I installed Flash Player and Firefox stopped working.

Since I am no expert at all, in this answer I honestly don't understand what does "Simply activate it by going to System Settings>Software Sources>Other Software and check the boxes for Canonical Partners" mean (I have the box for Canonical Patners checked, if that is).

I tried the following things found on the Web:

  • If firefox -safe-mode it's the same

  • Tried sudo dpkg --purge --force-all firefox , then sudo apt-get install firefox , nothing.

  • Disinstalled Flash Player, useless

  • Like suggested here, rm -r ~/.mozilla . Too bad for me.

  • Then nothing removing ~/.config/dconf/user, whatever



I had the same problem, which happened after an update of the flash plugin. To fix it, I disabled the flash plugin by:

~$ mv ~/.macromedia{,~}

which moves away the entire ~./macromedia directory, thus rendering it invisible for Firefox. Something in there crashed Firefox.

  • It didn't work...
    – Barat
    Nov 19 '14 at 20:27
  • @Barat It worked for me. Your problem must be caused by something else. You could try uninstalling/disabling (system-wide) plugins.
    – gerrit
    Nov 19 '14 at 21:59

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