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Mozilla Firefox (Not Responding)


Mozilla Firefox (Not Responding)

Chosen solution

I already posted this solution in another thread in this blog... But well, no one hurts if I posted it again...

Hmmm... I believe some already have this solution... But, I want to re-post the solution i found in case somebody missing the solution to this problem...

Okay, The issue(correct Me if i'm wrong) : When you open mozilla firefox, surf for 2-3minutes and then the freezing/not responding will occur every 3 minutes or less. It say not responding, if you wait, it will take 30second - 2 minutes then it will be fine again.

If this is your issue, I have working solution.

Don't try to Install/Uninstall/Reinstall/Change version as it will be useless for this case.

The solution is actually must change the PROFILE. How to change the profile...? For Complete guide, I'm suggesting you Read this blog post as it contain screenshot or picture to aid you rather than a mere writing guide.

Note : Sometime Registry Fix may solve this problem, and disabling add-ons also may help. But, If you think you already try all method possible and has no luck, This might help you as I already confirm it. And it works most of the time.. 99.99%.

Read here : Fix Not Responding Mozilla Firefox or Change Mozilla Firefox Profile.

Read this answer in context 7

Additional System Details

Installed Plug-ins

  • np-mswmp
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Default Plug-in
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.1"
  • Shockwave Flash 10.1 r85
  • GEPlugin
  • Next Generation Java Plug-in 1.6.0_22 for Mozilla browsers
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • Google Update


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv: Gecko/20101026 Firefox/3.6.12 ( .NET CLR 3.5.30729; .NET4.0C)

More Information

Fix the problem for Christ's sake. I see hundreds of complaints about this and I'm about ready to go back to my original web browser. If you can't function, you shouldn't exist.

crm911 0 solutions 8 answers

@wgotto, Nothing too profound. I have tried various suggested solutions - decoupling one CPU, rebuilding a profile, removing add-ons, etc, on several machines - personal, work and test lab. Firefoxes of various vintages seem to work, then get to this (not responding) point and the only option is to restart it. People can only share what worked for them (if they come across this thread) but we don't know if they subsequently had this problem. I use FF only because of some developer/accessibility/seo add-ons but now defect to IE9 and Chrome for non-work browsing.

Bill 0 solutions 8 answers

Ok. My daughter who has a Mac had problems with Firefox & she went to Google Chrome. She's pushing me hard to do likewise.

DID YOU HEAR THAT FIREFOX ? Do you want to remain a popular browser or a footnote in internet history ? A has been ? A wannabe ? Sheesh.

jakebe2 0 solutions 6 answers

I really don't think Firefox knows what the problem is or how to fix it or they would have by now. The fact that so many different things seem to cause the problem makes me think there is a common thread among them but Firefox doesn't seem to know what it is. My problem was Carbonite Online Backup. Once I changed the settings to prevent it from backing up all the time to a scheduled backup when I wasn't on the computer my problem went away.

Bill 0 solutions 8 answers

I hear ya there. But as you say - so many things seem to be causing it - because I had the problem before I had Carbonite. I'm just going to have to try another browser I guess.

crm911 0 solutions 8 answers

See what I mean? I am not sure I have heard of Carbonite, unless it is a backup service over the web. I wouldn't use any such service on account of the slow 1.5 M/256k connection I have. I have seen the problem without using Carbonite at all.

If these were the Windows 98 days, I'd be thinking that FF causes a memory leak, but with Windows XP onwards, memory leaks have decreased to the point that you hardly hear that term. But the system behaviour is very reminescent of those days -- the longer you use FF, e.g. an all-day browsing session on a weekend (or at work) is guaranteed to cause this error.

Bill 0 solutions 8 answers

Yes that is exactly what it is. Too bad you can't use it. I have had several different methods of back up over the years but the weakest link in all as ME ! LOL !! I'd forget or put it off & then BAM ! A HD dies & data goes to software Heaven. With Carbonite & the other one - Mosey I think - you create or change a file & it's backed up instantly or nearly so. Plus if your house burns down - even the most diligent back up person is screwed. Not with these online companies.

Man I haven't heard that term (memory leak) in ages ! LOL !! I'm pretty happy with Bill's latest OS. I never even had problems with Vista but I know that is rare.

I think I will begin to check out IE 9 & if that doesn't get me excited I will check out Google Chrome.

NYC-HDL 0 solutions 4 answers

Far too many theoretical "solutions" that might have worked for an individual, but none seem to point to a common root cause... So for, most of these "solutions" do not apply to my situation...

Try the applet "WhatIsHang.EXE" to get a dump of what is happening during the "Not Responding" sessions -- for me, I keep seeing a "recursive loop" error, that evidently implies that some part of Firefox internal code does not have an efficient time-out exit point.

Bill 0 solutions 8 answers

Thank-you NYC-HDL but that's above my level of expertise. If Firefox can't fix their software - I'm outta here !

thurstan 0 solutions 2 answers

Google 'firemin'. It fixes the memory leak in firefox. It worked for me, firefox no longer hangs and I don't see 'not responding' anymore! Yipee!

Modified by thurstan

crm911 0 solutions 8 answers

I can't see it in the Firefox blog but I recall in the past two days there was an announcement about a future release that will solve this problem by making it easy to set up a new profile and preserve your settings.