Debian :: Browser Is Crashing After Each YouTube Video

If I watch a video on YouTube, the browser crashes when I try to change to another webpage. Typically, the video will play through but a few have crashed midway. It always crashes on changing the webpage after a video starts (whether it finishes first or not). There is no error message. I have searched the forum for 'iceweasel crash' and didn't see anything quite matching my own problem. I did look at related posts and none of them solved my problem. I'm not sure if the videos are HTML5 or flash. Perhaps a mix of both.

There's no problem with browsing regular pages, even if they have video advertisements in a sidebar. This seems to only be happening on YouTube. I have turned off all browser extensions and plugins with no improvement.

I've searched the internet and seen where there was a security problem with Flashplayer a month ago and the symptoms (if hacked into) sound similar to what's happening to me but I am using the latest version of Iceweasel and this bug is supposed to be fixed.

My Debian install is only about a week old and was a clean install to a formatted partition. I've added a few minor apps since install but nothing that would effect this. I also installed nVidia's proprietary graphics drivers. I can watch dvd movies, MP4's, .flv files, etc with no problems.