Clicking on the FireFox icon in the Unity launcher bar doesn't work. Icon start blinking and after few seconds it simply stop blinking and nothing else happens and FireFox doesn't start.
OS release is Ubuntu 13.10 (3.11.0-15-generic #23-Ubuntu SMP Mon Dec 9 18:17:04 UTC 2013). Currently installed version of FireFox is 26.0
Trying from a Terminal gives the following error messages:
(process:5576): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed (firefox:5576): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::sm-connect after class was initialised (firefox:5576): GLib-GObject-WARNING **: Attempt to add property GnomeProgram::show-crash-dialog after class was initialised
and finally permission refused on /home/myaccount/.gnome2/accels when it attempted to create Gnome keyboard shortcuts folder.
Thanks in advance for your help