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firefox running slow


have upgraded to the current version several times only to end up going back to older version. I am running a 2.3 pentium 4 processor with 3gb ram. The older version ran slow but when I upgraded to your current version the slow down was extremely more noticeable. I also run IE8, Chrome, & Opera. There has been no issue with any of them except Opera is not always compatible with some websites

Additional System Details

This happened

Every time Firefox opened

This started when...

with firefox 3

Installed Plug-ins

  • Shockwave Flash 11.2 r202
  • 4.1.10111.0
  • Adobe PDF Plug-In For Firefox and Netscape "9.5.0"
  • Pando Web Plugin
  • Google Updater pluginhttp://pack.google.com/
  • My Web Search Plugin Stub for 32-bit Windows
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • iTunes Detector Plug-in
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Reader Library Helper Plugin
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Motive Plugin for Mozilla Browsers
  • RealJukebox Netscape Plugin
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • Office Authorization plug-in for NPAPI browsers
  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • Picasa plugin
  • DRM Netscape Network Object
  • DRM Store Netscape Plugin
  • Npdsplay dll


  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20100101 Firefox/11.0

More Information

I am sending this from an alternate computer

  • Top 25 Contributor
  • Moderator
622 solutions 8020 answers

If anything I would expect the newer Firefox 12 to be faster. It is not recmended to use older versions of Firefox, they are not considered secure, and increase the risk to your personal data, and to your computer system.

Anyone else with problems, please read the above articles, and if you still have a problem please start your own thread, (follow links and prompts from /questions/new ).