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Why is Firefox painfully slow/unresponsice when I return from a website to a search list?


If I do a search, and open a website off the search results in Firefox, then close the website to return to the list, Firefox is completely unresponsive for a period - won't return to the pointing hand, just an arrow, which does nothing. It has been like this for a while. I thought it might be Kaspersky 2013, but switching it off makes little difference. It is so slow that it makes Firefox almost unusable.

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Installed Plug-ins

  • npsitesafety
  • Shockwave Flash 11.5 r502
  • Next Generation Java Plug-in 1.6.0_37 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Google Update
  • GEPlugin
  • CANON iMAGE GATEWAY Album Plugin Utility Module
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers
  • Wacom Dynamic Link Library
  • Garmin Communicator Plug-In
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • Adobe Acrobat Plug-In Version 7.00 for Netscape
  • Office Plugin for Netscape Navigator


  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:17.0) Gecko/20100101 Firefox/17.0

More Information

Tyler Downer
  • Administrator
  • Moderator
1165 solutions 6639 answers

Please update to Firefox 18.0.2 Update Firefox to the latest version then Reset Firefox Reset Firefox – easily fix most problems

Question owner

Sorry - doesn't solve the problem. And now, when I turn off Kaspersky, it goes even more slowly!!

SLOW FIREFOX 0 solutions 4 answers

Firefox is to slow .

why ?

slow slow slow

have 32gb memory , 4 core cpu , intel ssd .

slow slow

Question owner

I have uninstalled Kaspersky (licence expired now anyway) and installed Norton. It is not so bad as when Kaspersky was in use, but is still slow.