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Firefox hangs at random moments and uses 25% of the CPU (one core)

  • 2 replies
  • 16 have this problem
  • 1 view
  • Last reply by NielsH

NielsH
NielsH
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Hello,

On random websites and moments, I notice Firefox using 25%CPU. I have 4 cores. I don't know what's causing it, and it is pretty annoying. It just hangs and becomes unresponsive for about ~ 30-45 seconds. After that it happily continues without problems. It doesn't actually crash, it only hangs.

I think it's something with an extension that's causing it. I have this as well on my laptop, that has Hyperthreading. (this PC doesn't) - On the laptop it uses 13% CPU when the same issue appears.

I have Firefox 5 fully updated. Addons I use: Ghostery Adblock Plus HTTPS Everywhere WOT (Web of Trust)

I use on both computers Windows 7 Professional. One of them is English, the other Dutch. Both legal and with all updates.

I also have the Flash and Silverlight plugin, up-to-date.

If there's any other information you need please let me know. Would like to have the issue resolved :)

Thanks,

Niels

Hello, On random websites and moments, I notice Firefox using 25%CPU. I have 4 cores. I don't know what's causing it, and it is pretty annoying. It just hangs and becomes unresponsive for about ~ 30-45 seconds. After that it happily continues without problems. It doesn't actually crash, it only hangs. I think it's something with an extension that's causing it. I have this as well on my laptop, that has Hyperthreading. (this PC doesn't) - On the laptop it uses 13% CPU when the same issue appears. I have Firefox 5 fully updated. Addons I use: Ghostery Adblock Plus HTTPS Everywhere WOT (Web of Trust) I use on both computers Windows 7 Professional. One of them is English, the other Dutch. Both legal and with all updates. I also have the Flash and Silverlight plugin, up-to-date. If there's any other information you need please let me know. Would like to have the issue resolved :) Thanks, Niels

All Replies (2)

lily777
lily777
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I have the exact same problem you described. Have you figured out a fix for this yet? :(

NielsH
NielsH Question owner
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Nope - no fix yet :( I have installed a few new addons though: HTTPSEverywhere, Ghostery and NoScript. I'm not sure which one is causing it, but one of them caused the problem to drastically reduce. I have it once a month now, maybe.. Before that I had it multiple times a day.

It's probably Ghostery or Noscript fixing it, due to the things they forbid from loading :)

Niels