Die Funktionalität dieser Website ist durch Wartungsarbeiten eingeschränkt, die Ihr Erlebnis verbessern sollen. Wenn ein Artikel Ihr Problem nicht löst und Sie eine Frage stellen möchten, können Sie unsere Gemeinschaft über @FirefoxSupport auf Twitter, /r/firefox oder Reddit fragen.

Avatar for Username

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

Dieses Thema wurde archiviert. Bitte stellen Sie eine neue Frage, wenn Sie Hilfe benötigen.

Why does firefox cpu useage drop when I open task manager?

  • 1 Antwort
  • 1 hat dieses Problem
  • 3 Aufrufe
  • Letzte Antwort von FredMcD

arizman2
arizman2
more options

Firefox can be running at around 99% cpu, typically on a facebook page. I can tell because the cpu fan will go to high speed and I can barely type anything.

I notice that, if, when this happens, if I open Task Manager, almost immediately, the Firefox cpu utilization will drop dramatically from 99 % to the 30's.

Initially I thought this was a fluke but no, there is a definite link between having the task manager open and looking at it (not minimized) AND the cpu utilization by firefox.

My guess is, firefox has code that watches for the state of the task manager and it if is open and not minimized, whatever firefox is doing that is cpu intensive is curtailed

Firefox can be running at around 99% cpu, typically on a facebook page. I can tell because the cpu fan will go to high speed and I can barely type anything. I notice that, if, when this happens, if I open Task Manager, almost immediately, the Firefox cpu utilization will drop dramatically from 99 % to the 30's. Initially I thought this was a fluke but no, there is a definite link between having the task manager open and looking at it (not minimized) AND the cpu utilization by firefox. My guess is, firefox has code that watches for the state of the task manager and it if is open and not minimized, whatever firefox is doing that is cpu intensive is curtailed

Alle Antworten (1)

FredMcD
FredMcD
more options

I want to try a few things with you.

1) Start the Task Manager. Then start Firefox

2) Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options) key, and then starting Firefox. A small dialog should appear. Click Start In Safe Mode (not Refresh).

Is the problem still there?