Okay, I've been wondering about this for a long time. Every time I open a page with some video or flash for the first time Firefox simply "core dumps", then when I restore the browser everything works fine. This happens on both of my computers and I would like to finally solve this. Here's the output of when I started Firefox out of the terminal and go to my igoogle page that has a game and some news video:

rick@rick-laptop:~$ firefox
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: GetValue variable 1 (1)
** Message: GetValue variable 2 (2)
** Message: NP_Initialize
** Message: NP_Initialize succeeded
** Message: totemPlugin ctor [0x8e72058]
** Message: Init mimetype 'application/x-mplayer2' mode 1
** Message: Base URI is 'http://32.gmodules.com/ig/ifr?url=http://www.cammap.net/tvlive/livetvint.xml&nocache=0&up_kanaal=ABC+News+Now&up_ autoplay=Yes&up_none=-+Fill+in+below+-&up_statn=&up_urls=&up_urlw=http://&lang=en&country=us&.lang=en&.country=us&synd=ig&m id=32&parent=http://www.google.com'
** Message: Real mimetype for 'application/x-mplayer2' is 'video/x-msvideo'
argv[0] type application/x-mplayer2
argv[1] pluginspage http://www.microsoft.com/windows/win...ownloads.aspx/
argv[2] filename http://a1729.l2168647534.c21686.g.lm...eflector:36819
argv[3] src http://a1729.l2168647534.c21686.g.lm...eflector:36819
argv[4] name MediaPlayer6
argv[5] showcontrols 0
argv[6] showdisplay 0
argv[7] showstatusbar 1
argv[8] height 200
argv[9] width 270
** Message: mSrc: http://a1729.l2168647534.c21686.g.lm...eflector:36819
** Message: mCache: 0
** Message: mControllerHidden: 1
** Message: mShowStatusbar: 1
** Message: mHidden: 0
** Message: mAudioOnly: 0
** Message: mAutostart: 1, mRepeat: 0
** Message: Launching: /usr/lib/totem/totem-plugin-viewer --plugin-type gmp --user-agent Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.4) Gecko/20061201 Firefox/2.0.0.4 (Ubuntu-feisty) --mimetype video/x-msvideo --no-controls --statusbar
Segmentation fault (core dumped)
rick@rick-laptop:~$


Can anyone help me with this? How do I get past that segmentation fault?
Thanks.

Looks like a problem with totem plugin NOT firefox. Since you are using Ubuntu I might suggest you to uninstall and reinstall plugin via "synaptic/adept". You might also try mplayer plugin (my favorite) instead of totem.

You know what? I think you're right. I have Xubuntu on my external USB and firefox doesn't have that problem. I just started thinking about that today. Also, I have mplayer instead of totem on the Xubuntu disk. Hmmmm. I'll check it out. Thanks!

later -- okay, I removed the totem-plugin and eventually the gxine-plugin and I got it to stop crashing on the page it was guaranteed to crash on. I still had a crash on the fafsa.ed.gov page (student loan page), but after I got back in it was okay. Not sure what that was about, but otherwise, when I view videos mplayer kicks and everything is fine. For now.

later yet -- well, maybe not. I actually went to www.dell.com and put in ubuntu into the search engine, then chose the ubuntu topic and the little video crashed the page. Then right after, I started a new session and put in www.linuxquestions.org and it crashed again! I suppose it was that crazy graphic on the front page that did it. Is it the flash plugin? Or what? Here's the output:

rat@rat-desktop:~$ firefox
Illegal instruction (core dumped) # from the ubuntu page
rat@rat-desktop:~$ firefox
Segmentation fault (core dumped) # from linuxquestions.org
rat@rat-desktop:~$ firefox

What the...?