[Gutsy] Firefox stopped working

[Chanchao]

Firefox now crashes a couple seconds after opening up.

I did todays update which included an firefox update, but this didn't
solve the problem.

I tried safe-mode and disabled all plug-ins, but this didn't solve the
problem.

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me at necversa:~$ firefox -safe-mode

(gecko:8425): Pango-WARNING **: failed to create cairo scaled font,
expect ugly output. the offending font is 'Arial 9'
Segmentation fault (core dumped)

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Any thoughts, clues, chants or magical incantations I can employ here?

Cheers,
Chanchao