[browsershots-factories] Shotfactory Firefox crash on Mac OS X v10.4.8

[Johann C. Rocholl]

Hi Zeeshan,

Thanks for the verbose bug report. This seems to be a bug in appscript.

I have updated the source code to catch the exception and retry the
call up to 3 times:
http://trac.browsershots.org/changeset/1920

Please update your source code and try again:
http://trac.browsershots.org/wiki/HowToUpgradeShotFactory

Cheers,
Johann