Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

Why is Firefox Using Too Much Memory?

  • 3 réponses
  • 8 ont ce problème
  • 53 vues
  • Dernière réponse par Dr Genius

more options

Been having this problem for a while with firefox, seems like an update last summer and the past upgrade things have changed. Task Manager shows multiple tabs open in firefox, I had two tabs open, one for my homepage and another for a website I was visiting, firefox shows a lot of activity on one tab and thing there's 3 other tabs open.

This causes my computer to lag and be unresponsive, everything application, every function, the task bar, everything lags and slow to respond and responds in a choppy way. This has been going on for sometime and is a real headache, I do my work and use firefox considerably, I open multiple tabs and work on certain websites, Firefox uses 500-1,000+ MB and 80-90% memory, why is that?

Been having this problem for a while with firefox, seems like an update last summer and the past upgrade things have changed. Task Manager shows multiple tabs open in firefox, I had two tabs open, one for my homepage and another for a website I was visiting, firefox shows a lot of activity on one tab and thing there's 3 other tabs open. This causes my computer to lag and be unresponsive, everything application, every function, the task bar, everything lags and slow to respond and responds in a choppy way. This has been going on for sometime and is a real headache, I do my work and use firefox considerably, I open multiple tabs and work on certain websites, Firefox uses 500-1,000+ MB and 80-90% memory, why is that?
Captures d’écran jointes

Solution choisie

You can try to modify multi-process settings to see if this has effect.

  • set number of content processes to 1 if it is currently set to a higher value (4)
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • disable multi-process windows in Firefox

You can disable multi-process windows in Firefox by setting this pref to false on the about:config page.

  • browser.tabs.remote.autostart = false

Note that the previously used opt-in pref browser.tabs.remote.autostart.2 is no longer supported in Firefox 58+. You can reset browser.tabs.remote.autostart.2 via the right-click context menu to the default value to have this this pref removed on the next start.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

Lire cette réponse dans son contexte 👍 2

Toutes les réponses (3)

more options

Solution choisie

You can try to modify multi-process settings to see if this has effect.

  • set number of content processes to 1 if it is currently set to a higher value (4)
    Options/Preferences -> General -> Performance
    remove checkmark: [ ] "Use recommended performance settings"
  • disable multi-process windows in Firefox

You can disable multi-process windows in Firefox by setting this pref to false on the about:config page.

  • browser.tabs.remote.autostart = false

Note that the previously used opt-in pref browser.tabs.remote.autostart.2 is no longer supported in Firefox 58+. You can reset browser.tabs.remote.autostart.2 via the right-click context menu to the default value to have this this pref removed on the next start.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

more options

Thanks Cor-el, looks like that worked, not much of a headache anymore.

more options

Why on earth is the default setting so clunky then? seems absurd that we all have to tweak settings for Firefox to function in an acceptable fashion. :-(