Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen

Firefox bug? McAfee SiteAdvisor 3.7.1 jams CPU useage at 50%

  • 3 Antworten
  • 11 haben dieses Problem
  • 7 Aufrufe
  • Letzte Antwort von petrea9

Weitere Optionen

Firefox 35.0.1 Under certain circumstances Firefox starts using excessive CPU time. It seems to happen when trying to do too many things at once. But, once in this condition exiting all functions (closing all tabs) except my homepage Firefox still is stuck using 50% CPU and over 200,000k memory. The only way to get out of this is to close Firefox and restart it.

After much experimenting I found that disabling (extension) McAfee SiteAdvisor "cured" the problem. Is there a know incompatibility here? Is there a fix, other than disabling SiteAdvisor?

How do I report this to mozilla developers?

Firefox 35.0.1 Under certain circumstances Firefox starts using excessive CPU time. It seems to happen when trying to do too many things at once. But, once in this condition exiting all functions (closing all tabs) except my homepage Firefox still is stuck using 50% CPU and over 200,000k memory. The only way to get out of this is to close Firefox and restart it. After much experimenting I found that disabling (extension) McAfee SiteAdvisor "cured" the problem. Is there a know incompatibility here? Is there a fix, other than disabling SiteAdvisor? How do I report this to mozilla developers?

Ausgewählte Lösung

McAfee SiteAdvisor has been blocked by Mozilla a number of times over the years due to a major memory leak. although not recently iirc. https://addons.mozilla.org/en-US/firefox/blocked/ So it doesn't surprise me one bit that McAfee seems to be causing problems for you now.

Overall, that extension merely duplicates features that are built into Firefox. IMO, it adds nothing to Firefox, beyond a different database source and possibly "bells and whistles" to "wow" users.

Diese Antwort im Kontext lesen 👍 2

Alle Antworten (3)

Weitere Optionen

Ausgewählte Lösung

McAfee SiteAdvisor has been blocked by Mozilla a number of times over the years due to a major memory leak. although not recently iirc. https://addons.mozilla.org/en-US/firefox/blocked/ So it doesn't surprise me one bit that McAfee seems to be causing problems for you now.

Overall, that extension merely duplicates features that are built into Firefox. IMO, it adds nothing to Firefox, beyond a different database source and possibly "bells and whistles" to "wow" users.

Weitere Optionen

Thanks for the info. I checked with McAfee tech support and got nowhere.

Weitere Optionen

I have got the same problem, but not with McAfee, have got Norton. And I have to close firefox via the task manager in order to get everything closed, as Firefox "hangs" with 50% CPU usage + lots of memory!!!!!!

Geändert am von petrea9