Jump to content


Firefox running slow


  • Please log in to reply
5 replies to this topic

#1 cbrookhart



  • Joined: 07-February 06
  • Location: Staten Island, NY

Posted 09 August 2014 - 02:29

Lately, about once or twice a week I am having to reset Firefox (Firefox 31) because it becomes unbearably slow. I've been doing a Firefox reset over the past month, and initially the reset would restore the tabs. Now when I do the reset, none of my tabs come back.


Why is Firefox becoming so slow where it takes over a minute to scroll down a page or takes several minutes just to open?


Why the is the reset now not restoring my tabs?

#2 Max Norris

Max Norris

    Neowinian Senior

  • Tech Issues Solved: 36
  • Joined: 20-February 11
  • OS: Windows 7
    Windows 8.1 (Desktops)
    2012 R2/Debian
    BSD Unix (Servers)
  • Phone: HTC One (Work) Lumia 1020 (Home)

Posted 09 August 2014 - 02:36

Tried running without addons to see if it's one of them causing the issue? I've had one or two that could seriously slow it down, last one was one of the "linkification" addons, especially on javascript heavy sites it clobbered the browser. Just run it in safe mode (Firefox's, not your OS) and see if it's still dragging.

Could always try building a new profile too.. once in a long while the data get get a little wonky and it'll do strange things.

#3 +Brando212


    Neowinian Senior

  • Tech Issues Solved: 20
  • Joined: 15-April 10
  • Location: Omaha, NE
  • OS: Windows 8.1
  • Phone: Sony Xperia Z3, Nokia Lumia 925

Posted 09 August 2014 - 02:57

I've long since given up trusting firefox's session manager. i use Session Manager extension now and it's MUCH more reliable


as far as the slowing down. how many tabs do you have open on average? do any of the tabs have flash loaded? also how much ram does your computer have? also, what extensions do you have?


if you have 8gigs or less ram & 20+ tabs open (with at least a few containing flash content) then you'll definitely start to notice slow downs in firefox due to ram usage and a few other things after a week or two

#4 :B: Rex

:B: Rex


  • Tech Issues Solved: 1
  • Joined: 10-October 04
  • Location: Minnesota
  • Phone: Lumia Icon

Posted 09 August 2014 - 05:23

you can try running firefox in safe mode which will disable all add-ons

or you can try disabling the add-ons individually thru the add-ons page. it doesnt uninstall them it just turns them off and then you can turn them back on

#5 Xahid


    Anokha Neowinian

  • Tech Issues Solved: 4
  • Joined: 04-November 01
  • OS: Windows 7 Ultimate

Posted 09 August 2014 - 05:42

usually, Firefox slowness problem is cause of Addons not because of Firefox itself.

#6 68k


    Neowinian Senior

  • Tech Issues Solved: 5
  • Joined: 20-January 10
  • Location: Australia

Posted 09 August 2014 - 05:56

Add-ons Manager --> Plugins --> set 'Ask to Activate' for all plugins.