Support Forum

I have been using Firefox 5 on the Mac OS X Lion developer preview for a few days now, and Firefox crashes over and over again.

If I have more than 2 tabs open, Firefox can't last more than 20 minutes without crashing. I have submitted multiple crash reports.

Hello There. To my utter dismay I am forced to use Chrome to access this forum. The reason is the moment I use Firefox (3) my computer crashes and I get the dreaded windows blue screen. I have been using ff for a long time now without problems. Yesterday I updated adobe flash player, but have now uninstalled flash player in the hope that the problem is resolved. No luck. I can use my computer in normal manner without problems, but the moment I use ff it crashes

Firefox 5 updated for me last night (23 June 2011), and since then I am getting continual problems with Flash crashing out on almost every page it's on. I have checked for futher updates for both Firefox and Flash, but there are none.

It was fine until the update, doesn't anyone test updates before releasing them any more? If I wanted my browser to run slowly and crash all the time, I would have stuck with IE9!

Right after I upgraded to Firefox 4 I noticed that the browser would suddenly stop responding. No longer able to scroll through website, change tabs and when I try to close browser nothing would happen. Eventually I have to do a "Force Quit" on Firefox to get the program to close out. After that the browser will work without problems for awhile and then freeze up again. I tried reboot the computer and disabling my various plug-ins without success. I can not find a discernible pattern on when the freeze up occur. No particular time frame or website appears to be the cause. I am currently running MAC OS X 10.6.7. I never had this problem until I upgraded to Firefox 4.

I switched to FF a few years ago and never had a problem Wonderful program. FF wanted to upgrade to V7, and it installed fine. Since then, FF locks up every five minutes so bad I have to reboot. My email locks up, yahoo freezes, and I cannot type more than 5 letters in a chat without lockup. Somehow, your annoying help section tries to blame this on other programs!

whenever i try to watch DivX movies through a streaming website, the extension to the movies are .avi files, only these streams cause my firefox to crash. if i would just let the firefox load itself out of the problem, which i have, it never does until i CTRL ALT DELETE it in the end task manager.

streaming worked fine for .avi files before the new firefox update, so will this error be fixed, or is it something else? and if so how do i fix the problem so i can continue to view these movies online?

Im Trying To Figure Out Why Firefox Keeps Crashing Everytime I Try And Go To A Website. I Tried Doing The Steps In One Of The Forums But I Still Get Confused. The Thread Is: ntdll.dll@0x9c405 I Need Help

Firefox will crash and say NOT RESPONDING at random. This happened when I updated to 6. I don't want to have to break into my system to make it work when Firefox 5 and under worked fine.

In what seems like a relentless update/upgrade competition with the "other" browsers, Firefox 11 is NOW not playing nice with Shockwave Flash, or is it vice-versa. This didn't start happening until I "upgraded" to Firefox 11.0

YES, I've updated ALL the plugins (Who invented this plug-in hassle, anyway?), as is ABSOLUTELY required whenever Firefox goes through one of its myriad of updates/upgrades. I've uninstalled/reinstalled Flash, and my WinXP Pro is up-to-date. I haven't experienced this torrential headache with IE 8.0, OR before F-11.

Is there a Firefox 11.0.0.1.2.3.4 patch in-the-works, or do I have to consider one of the "others"? HELP ME!

So for the past 5 days, firefox will not stop crashing. Whether I'm on YouTube, Last FM, or just checking my email on Yahoo, Firefox crashes abruptly. I get a little box that pops-up, stating "Firefox had a problem and crashed. We'll try to restore your tabs and windows when it restarts. To help us diagnose and fix the problem, you can send us a crash report." When I to send an error report or check the box that says "Tell Mozilla about this crash so they can fix it," I get the response "That was a problem submitting your report." I've done everything suggested, from trouble shooting, to disabling all my plug-ins & extensions, uninstalling & reinstalling, running Firefox through Safe Mode, et cetera, yet despite all this, the crashes persist. I don't want to return to Safari, Google Chrome, or IE, yet I feel as though I have no choice with this obdurate and, frankly, obnoxiously annoying crashes. It's incredibly ironic that Firefox just launched an update which reduces crashes, yet now, more than ever, crashes are most prevalent.

User Agent

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16

After updating to Firefox 6 the browser keeps crashing at each instance where flash player is triggered. I uninstalled and re-installed both firefox 6 and flash player 10.3 and cleaned my registry. I keep having the same issue, unable to use FF where all other browser function normally. i.e. chrome, ie9, safari

So, for a few days now, Firefox has been extremely touchy. It would crash at random times, but now, it crashes whenever I try to type something. It has gotten progressively worse. Also, I cannot play videos, as "Adobe Plugin has crashed". This isn't just once or twice. This is every video on every site. Please help!

If it's of any correlation, I was getting bluescreens and such earlier.

What happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined

Everytime I click my Firefox icon to search the web I get this error and I have to click okay before I can actually see the web browser...

What do I need to do.

I am on the beta 4 version.

So I am surfing the net or watching something online then all of a sudden firefox 4 crashes it says its suppose to restore my tabs but it never does. please i want this fixed it is so annoying in addition my tabs do not save any more like they used to. like when you hit exist it suppose to ask if you want to save well it dosen't. Yes I have gone to your support page and literally done everything it said to do but none of it worked. so please help me on that too if possible.

Since I updated to Firefox 5, my computer freezes all the time. Can I get Firefox 4 again? Everywhere I see a download for 4 it is actually 5. Also if I can't have my Google tool bar, I don't want Firefox at all.

After upgrading to 3.6.4 the browser will not open. The process starts, but a window never appears.

Firefox will not open in Safe Mode. Profile Manager will not open.

Have performed a complete uninstall/reinstall, removing both the program files\mozilla folder and the mozilla folder in %appdata% before reinstalling.

Uninstalled all security software (MS Essentials, Outpost) and attempted reinstalling with no security software installed at all.

Have installed other builds, including Minefield and Namoroka. No 32 bit builds 3.6.4 or later will open on my system. The problem does not exist with 64 bit builds.

I have reverted to 3.6.3 but do not want to be stuck on this version forever.