Firefox error, making me mental

When I'm on firefox for a period of minutes or so, it crashes.

Here is my screen shot of it and here is what it is called, via the crash log.

http://tinypic.com/r/351z6vo/4

: hang | mozilla:lugins:PluginInstanceParent::CallPBrowserStreamConstructor(mozilla:lugins:BrowserStreamParent*, nsCString const

All my plug ins are up to date. I can't get the mozilla forum to work so I can paste it there.

What can I do to keep it from crashing constantly?

I really appreciate the help.

 

Thank you. I didn't realize it might be malware.

 

It may not be malware, but I would try to eliminate the possibility.
I did a quick search, and I found several hits which included the error reported, but not one explanation.
I, personally, have, never, had a crash.

 

It's so strange! I've run Avast on it and I've restarted the computer, put it on SAFE and still no type of malware.

I keep reading about the problem but nothing seems to work.