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Firefox is so slow it is practically unusable, also on Mozilla Support pages!

Posted

Many pages cause the system to freeze for a long time so the application needs to be ended with the Task Manager (which always reports that the application is not responding). I have downloaded the newest version of Firefox (16.0.2) and i have reset Firefox. I have also tried starting without add-ons, but it does not help. I am unable todetermine which plug-ins i really need and which I could delete.

Additional System Details

Sites Affected

http://support.mozilla.org

Installed Plug-ins

  • Shockwave Flash 11.4 r402
  • Google Update
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Next Generation Java Plug-in 10.7.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Nokia Suite Enabler Plugin
  • Adobe PDF Plug-In For Firefox and Netscape "9.5.2"
  • 4.1.10329.0
  • Picasa plugin
  • GEPlugin
  • Google Updater pluginhttp://pack.google.com/
  • RayV Plugin
  • Garmin Communicator Plug-In 2.6.4.0
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.0; rv:16.0) Gecko/20100101 Firefox/16.0

More Information

cor-el
  • Top 10 Contributor
  • Moderator
10739 solutions 96645 answers

A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:


Create a new profile as a test to check if your current profile is causing the problems.

See "Creating a profile":

If the new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.

See:

You can also try to reset Firefox: