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Is it Firefox, or my extensions?

The problem that I have is that Firefox just slows to an absolute crawl after 30-60 minutes of usage. The rest of the system is really speedy, so the problem is for sure limited to either Firefox or the add-ons.

I'm running the latest Firefox (18.0) on Windows 8. I'm running on a brand new clean install of Windows and Firefox at the moment, but I've had the had the same issue on Windows 7 and the last few versions of Firefox. I generally have 1-4 tabs open, and maybe up to 8 if I'm looking at a few things for school.

RAM usage (according to task manager) ranges from 250mb at launch to about 600 after an hour or two.

The extensions I use are:

AdBlock Plus
NoScript
Ghostery
BetterPrivacy
DownloadHelper
NewTabURL
UserAgentSwitcher
NoSquint


Is there a known issue with any of these add-ons, or is the issue Firefox itself? I've installed Chrome and though I'd prefer to stay with Firefox, the sluggishness is really starting to get to me.

I guess I'll just browse with add-ons turned off to check for myself. Just thought someone might have some first-hand experience with an add-on causing similar problems.
 
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Try disabling Ghostery. I had minor slowdowns with it, but I've read of people having pretty bad performance.
 
The problem that I have is that Firefox just slows to an absolute crawl after 30-60 minutes of usage. The rest of the system is really speedy, so the problem is for sure limited to either Firefox or the add-ons.

I'm running the latest Firefox (18.0) on Windows 8. I'm running on a brand new clean install of Windows and Firefox at the moment, but I've had the had the same issue on Windows 7 and the last few versions of Firefox. I generally have 1-4 tabs open, and maybe up to 8 if I'm looking at a few things for school.

RAM usage (according to task manager) ranges from 250mb at launch to about 600 after an hour or two.

The extensions I use are:

AdBlock Plus
NoScript
Ghostery
BetterPrivacy
DownloadHelper
NewTabURL
UserAgentSwitcher
NoSquint


Is there a known issue with any of these add-ons, or is the issue Firefox itself? I've installed Chrome and though I'd prefer to stay with Firefox, the sluggishness is really starting to get to me.

I guess I'll just browse with add-ons turned off to check for myself. Just thought someone might have some first-hand experience with an add-on causing similar problems.
18.0 is not the latest, 18.0.1 is http://forums.anandtech.com/showthread.php?t=2296544
 
some of them I am not familiar with but try disabling one by one and see what happens.
I have noticed slowdowns when using ghostery myself.
 
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