Can I refer the young lady to the answer I gave some moments ago on the 'links not opening in email', thread.
Link
HERE.
Extract.
To set your Mozilla browser as the default program on Windows Vista and above, go to "Start -> Default Programs -> Set your default programs", find your Mozilla browser in the list of programs and set it as the default.
Obviously my answer will be classed as; 'pants', if you only have the one web browser installed....
Link
HERE to explanation of Crash Report workings.
The fault could also be a Flash update gone wrong or an Add-on snagette.