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Script not responding


A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: file:///C:/Program%20Files/Mozilla%20Firefox%203.6%20Beta%205/components/nsBlocklistService.js:648

Also, when firefox opens, it opens between 4 and 10 different windows. ACK!

Additional System Details

This happened

Every time Firefox opened

This started when...

It's been going on for a long time, but I don't think it coincided with a particular new version.

Installed Plug-ins

  • Version
  • Google Talk Plugin Video Accelerator version:
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape "9.4.1"
  • Default Plug-in
  • Provides additional functionality on Facebook. See our web site for details.
  • Google Update
  • Shockwave Flash 10.1 r102
  • iTunes Detector Plug-in
  • Next Generation Java Plug-in 1.6.0_22 for Mozilla browsers
  • 4.0.50917.0
  • Npdsplay dll
  • DRM Store Netscape Plugin
  • DRM Netscape Network Object


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20101122 Ant.com Toolbar 2.0.1 Firefox/3.6.13 ( .NET CLR 3.5.30729)

More Information

  • Top 10 Contributor
  • Moderator
10747 solutions 96720 answers

Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems and Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Troubleshoot Firefox issues using Safe Mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
30fold 0 solutions 1 answers

Helpful Reply

I installed the latest version of FF a few weeks ago (v. 8.0), created a totally new profile, eliminated extensions, and I still get this issue - primarily with Gmail.

Like others have mentioned, if left open over night, FF is unusable in the morning.

FF becomes unusable within a few hours of use, even if I have but few windows open. Typically, FF is the only application I have running since I use Google Docs and Gmail now. I started using Gmail so I could stop running Outlook - goodness I miss the functionality. I thought eliminating one memory hog would allow the other hog to flourish. Not so.

I created a new clean Windows profile and tired again, but FF continues to be very slow. It opens slow. It runs slow. It crashes often. It becomes unresponsive even more often.

Too many things are simply not compatible with Chrome yet. But it seems over the years FF has developed all the issues that drove me to it from IE to begin with.

Version 3 was supposed to fix the issues. Then 3.1. Then 7. Now 8.0 and although some nice features have been added, the basics are still not working well. I use my browser all day every day - sometimes for 15-16 hours a day.

I have FF 8 on a second computer, and went through the same steps with it. It has all the same issues.

I long for fast and lean and good memory management. I know the browsing world has become more complex - sort of like the transition from manual to automatic transmissions. But the gears on this box are grinding.