Ce site disposera de fonctionnalités limitées pendant que nous effectuons des opérations de maintenance en vue de vous proposer un meilleur service. Si un article ne règle pas votre problème et que vous souhaitez poser une question, notre communauté d’assistance est prête à vous répondre via @FirefoxSupport sur Twitter, et /r/firefox sur Reddit.

Avatar for Username

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Ce sujet de discussion a été archivé. Veuillez poser une nouvelle question si vous avez besoin d’aide.

Which tab is using high CPU?

  • 6 réponses
  • 1 a ce problème
  • 2 vues
  • Dernière réponse par cor-el

Shane
Shane
more options

Greetings,

Firefox is using 100% of my CPU. A yellow banner is displaying at the top saying "A web page is slowing down your browser. What would you like to do?". Windows Task Manager makes it look like there is only one tab in Firefox which is causing the problem. How can I find out which tab is using all my CPU?

Thanks, Shane.

Greetings, Firefox is using 100% of my CPU. A yellow banner is displaying at the top saying "A web page is slowing down your browser. What would you like to do?". Windows Task Manager makes it look like there is only one tab in Firefox which is causing the problem. How can I find out which tab is using all my CPU? Thanks, Shane.

Modifié le par Shane

Toutes les réponses (6)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

Jest enter about:performance in the URL bar.

Shane
Shane Auteur de la question
more options

The Task Manager shows Energy Impact and Memory. How can I add a "CPU" column?

Let me know if you want a Task Manager screenshot.

Thanks, Shane.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

The Windows 10 Task Manager has several panels. Are you using Processes? Right-click any existing column heading to show a list where you can change the set of columns.

Firefox is a multi-process application, but there isn't a one-to-one correspondence between tabs and processes. Each "content" process can contain more than one tab.

Shane
Shane Auteur de la question
more options

Sorry, when I said Task Manager, I was referring to the one in Firefox. I clicked Menu > More > Task Manager. This opens the about:performance page.

The Windows Task Manager allows me to view a CPU column. Unfortunately, every process is called "Firefox", so I can't find out which tab is causing the problem.

Shane.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See also the about:memory page in addition of about:performance (Firefox Task Manager) (about:about list all available about pages).

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

The Firefox Task Manager shows ordered by the 'energy impact' column what CPU time related (time stamp difference) unless I'm wrong.