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Firefox constantly hangs/freezes/stops etc. What's going on?


For the last 2-3 weeks, I've been experiencing massive issues with Firefox.

I use a desktop with Windows 7, 64-bit.

I originally started with Firefox 5, and then a week or so before the release of Firefox 6 I started experiencing these issues. I was ecstatic when I found the release of Firefox 6 two days early, and for maybe a day or so, it was perfect before the problems started again.

Problems include: Firefox constantly hangs, freezes, not responding, stops loading etc. Whatever you want to call it, it does it randomly for any reason. It's not set off by trying to access a particular website or whatever, it could just be trying to open in a new tab or window. It even happens with simple things like typing or scrolling down a page. When it freezes it freezes my entire system until it gets going again. Sometimes it will even freeze when the window is minimized and I'm not currently using Firefox for anything.

I've tried scanning for viruses, clearing settings and stored files, uninstalling and re-installing, disabling any and all add-ons, even down grading all the way back to 3.6 and still nothing works. I've also tried all the "trouble-shooting solutions" I've come across, and most of them involve add-ons I've never even heard of, let alone use, so these are useless to me.

I had issues with a non-responsive script at start up, but after disabling a Java add-on this stopped, however the constant freezing remains.

Like I said, it's been happening for a few weeks, no matter what version of Firefox I use.

I know I'm the millionth person to complain about this; I've read all the other threads, but nothing is being done about this issue.

I've used Firefox for 8 years, but this problem is so infuriating I'm ready to call it quits and move to a different browser, which I don't want to do because I hate all the rest.

Is there anything else I can do to solve this, or are we just going to have to wait for the developers to 'maybe' get around to fixing it?

Modified by fraidso

Additional System Details

This happened

Every time Firefox opened

This started when...

Early August

Installed Plug-ins

  • Shockwave Flash 10.3 r183
  • Next Generation Java Plug-in 1.6.0_26 for Mozilla browsers
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0) Gecko/20100101 Firefox/6.0

More Information

Question owner

Impossible to use like this way. Have moved to the Opera browser which has the closest interface to Firefox. Will only be returning to Firefox when and if this issue is resolved.

andremassa 0 solutions 5 answers

Firefox 4, 5 and 6 have this issue and also high memory usage . I think the last version that works fine is 3.6.18. I'm using chrome now! Firefox was awesome in the past because of all addons and extensions , but now can't run it anymore!

Helpful Reply

Thanks for the reply!

I have noticed the high memory usage. And when I was having these issues I tried to install 3.6.18 and it wouldn't run.

But I had problems with my computer and sent it away for repair and now I'm running 6.0.2 with none of the previous problems I experienced.

patnice 0 solutions 1 answers

Helpful Reply

This freeze out problem on Wnd7 (32 bits for me) is a firefox killer bug! I went crazy with these pesky frequent/long freeze since I've installed firefox v6 a week ago. I was a happy firefox user for several years, but when I read in forum that freezes are still there in v7...

bye bye firefox!

Hello Chrome!

jwwells 0 solutions 2 answers

Chrome seems to be the cause of all the problems, instead of a solution. I have been unable to get firefox to work for more than 10 minutes all day today. Every time I try to change pages, I get an 'unresponsive script' error message. I recorded 9 such messages between 9am and 3:54 pm today, and 6 of them featured chrome. I was unable to change any pages without getting an error. I looked at the chrome site, and it seems to be described as a piece of shiny garbage which sits on top of everything and causes trouble. I would like to get rid of it.

  • Top 10 Contributor
  • Moderator
10754 solutions 96785 answers

The default of the pref network.http.max-connections has been increased from 30 to 256 in Firefox 6+ versions. Try to decrease the value of the pref network.http.max-connections from 255 to a setting like 30 as used in Firefox 3 versions.

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

WhiskeyJim 0 solutions 2 answers

Rather than trying a new install, have you tried this fix?

link text

Worked for me.

skeith 0 solutions 2 answers

I do have this problem too, my only solution is to install Nightly, however not much addons is yet to be supported