First, you are running an older version of Firefox. Please update to Firefox 13 to make sure you get all the most recent security fixes as well as crash fixes.

This does look like it might be an issue with Flash, so once you are updated, if you still get the issue, let's try to repair Firefox. Refresh Firefox - reset add-ons and settings

You can try to disable protected mode in the Flash player.

• https://support.mozilla.org/kb/keep-flash-up-to-date-and-troubleshoot-problems
• http://forums.adobe.com/thread/1018071?tstart=0

• [/questions/929081]
• [/questions/928820#answer-340046]

First of all thanks for your help. I updated my firefox to version 13. I have already disabled realplayer web download and recording, so there is not any problem with flash player protected mode. However, the mentioned problem continues to exist in specific websites. I tried to get the new crash report as I already got for previous crashes, but I failed to do so.