Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

slow to load pages


When I updated from 14.1?? UP to 15. My pages load slower. BEFORE update. Pages were fast, Have tried against Opera AND Internet Explorer. Both of those load like Firefox USE to. I have tried resetting,tweaking and reinstalling. Same issue. Is there a way to go back to 14? Or can I make 15 better? Like I said. SAME pages with other browsers load at least 30-40% faster.

Additional System Details

This happened

Every time Firefox opened

This started when...

I updated from 14 up to 15 versions

Installed Plug-ins

  • Shockwave Flash 11.4 r402
  • Next Generation Java Plug-in 1.6.0_35 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe Shockwave for Director Netscape plug-in, version
  • Amazon MP3 Downloader Plugin 1.0.17
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.4
  • 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.
  • 5.1.10411.0
  • 0.80.0
  • 0.70.0
  • Adobe Shockwave for Director Netscape plug-in, version
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • DRM Netscape Network Object
  • DRM Store Netscape Plugin
  • Npdsplay dll
  • np-mswmp
  • Windows Multimedia Services DRM Store Plug-In


  • User Agent: Mozilla/5.0 (Windows NT 5.1; rv:15.0) Gecko/20100101 Firefox/15.0.1

More Information

Reset...Reinstalled...Tweaked settings. Same thing. Tested speed versus other browsers. Firefox down 30-40%. Running Windows XP home.

  • Top 10 Contributor
  • Moderator
10738 solutions 96600 answers

Which security software (firewall, anti-virus) do you have?

Start Firefox in 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).

  • Administrator
  • Moderator
380 solutions 1848 answers

Hi bones200,

We are investigating this issue to see if there is indeed a performance degradation between FF 14 and 15. Are you still experiencing this issue? Would you be willing to try some additional troubleshooting steps to help us identify the issue? Please let me know!

Question owner

When my anitvirus updated it automatically turned on every thing. Finally found that(normally it is off). It helped, but still slower than it was before. Now in the bottom left corner it has the timer/website reading thing showing the whole time page is loading. Never seen that before. As is stands. The 15 version is better now, but still slower than Opera on EXACT pages.

  • Administrator
  • Moderator
380 solutions 1848 answers

Hey bones200,

Thanks for coming back to me. Which anti-virus are you talking about? Also, which things did it automatically turn on? You said "everything" but do you have any specifics? This will help us a great deal!


mrmikel 0 solutions 12 answers

Try disabling Protected Mode in Adobe Flash.

Question owner

Every thing was email,live scan,firewall(blocked a lot),real time scan and a couple of other things. It came up I had to update my Adobe flash yesterday. It didn't help or hurt anything. It seems to be getting faster. Has the been any updates to Firefox this week? One more thing. IF I have 2 or more tabs (NOT windows)open, I choose to close one. It takes about 5 seconds every time. Example. I click on "X" to close . . . . . closes. It freezes everything UNTIL it closes. I have defrag my PC. Only had 3-4 lines of red. Eveything "opens" faster. But still slightly slow on the browser(Firefox). No spyware/adware. I use Centurylink anti virus (F secure). Never really have virus problems. I run an open router, no fire wall on it. Like I stated. All this started after last update.

worldairgroup 0 solutions 6 answers

I am having exactly the same problem with version 17. Run virus checks, reinstalled firefox, complete PC check, restored PC to older backup. pages load with white screen and bottom left shows message 'Waiting for www.xxxxxxxxx.co.uk' to load. nothing happens, screen remains white. Also issues with playing media files - videos on news sites etc, comes up as white screen.