VE causes Firefox to crash on certain pages

Discontinued Products Verification Engine - CVE
1

Problem with this page : http://www.boilerjuice.com/
If I click ‘login’, Firefox crashes. If I disable VE, then it works fine.
Any thoughts, please?
I’m running Win7, Firefox 3.6.13, as far as I can tell everything else is up to date.
Thanks

2

Also happens on this site https://www.rscmshop.com/index.php/
Does anyone have any idea, please?