Moz 1.7.8 Browser crashes

I have just updated to Moz 1.7.8. But since Moz 1.7.7 I have been very 
often experiencing crash from the browser ( very often from clicking on 
a link inside an e-mail to go to a web site)   with the following msg : 
"Your browser has performed an illegal plug-in . We urge you to restart 
your browser." Then the QFA starts, the application crashes...... I have 
a Microsoft error report, & on top of that the QFA is unable to reach 
destination and the incident report is on queue....
What should I do as I better like the Suite, than the FF and TB.
If someone can help?
Best Regards
@lex