Suggestion required: Firefox crashes unexpectedly!!

[addison]

I currently have Ubuntu installed in my PC and prior to this I had Windows. I do have a lot of work to do over the Internet and I use Firefox most of the time. I was comfortable with it, but lately I am facing some problems of Firefox crashing and resulting in the loss of data and wastage of time. I have to restart the computer to have it working again and restore the sites that I was working on. This occurs especially when I try to play some media files. Could anyone here suggest me some solution for this?

[leszek]

If you are using the flash player it is mainly caused by it. 90% auf Firefox crashes are caused by misbehaving plugins