Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

Heavy memory usage with Firefox

  • 4 réponses
  • 0 a ce problème
  • 99 vues
  • Dernière réponse par SuMo Bot
  • Ouvert

atreff
atreff

While running Firefox on MacBookAir with macOS 15.7.2 to browse simple websites I keep getting the below warning message. I may have 2 or 3 other apps open (like Apple Mail, MS-Word, Preview). "Heavy memory usage You're running out of memory and your Mac may become noticeably slower. Consider quitting some applications. Firefox 2,48 GB" So I quit Firefox to re-open again and continue my work. Does somebody has an hint where this message can come from ? Any settings to change on my MAC ? Thanks for helping

While running Firefox on MacBookAir with macOS 15.7.2 to browse simple websites I keep getting the below warning message. I may have 2 or 3 other apps open (like Apple Mail, MS-Word, Preview). "Heavy memory usage You're running out of memory and your Mac may become noticeably slower. Consider quitting some applications. Firefox 2,48 GB" So I quit Firefox to re-open again and continue my work. Does somebody has an hint where this message can come from ? Any settings to change on my MAC ? Thanks for helping
Captures d’écran jointes

Toutes les réponses (4)

SuMo Bot
SuMo Bot

WOW!!! How much memory does you mac have? 2 or 3 apps open and getting low ram warnings...

Modifié le par jonzn4SUSE

SuMo Bot
SuMo Bot

Here's the activity from my 2012 mac running 10.13.6. see screenshot The isolated web content is from the FISSION Project. links below

Firefox's Project Fission:

Introducing Firefox’s new Site Isolation Security Architecture https://hacks.mozilla.org/2021/05/introducing-firefox-new-site-isolation-security-architecture/

Firefox's Project Fission: better security and more processes https://www.ghacks.net/2019/02/07/firefoxs-project-fission-better-security-and-more-processes/

Enable Fission in Firefox https://www.ghacks.net/2020/09/20/you-can-try-firefoxs-site-isolation-feature-fission-in-nightly-now/

Change how many processes multi-process Firefox uses https://www.ghacks.net/2016/02/15/change-how-many-processes-multi-process-firefox-uses/

Mark McKay
Mark McKay

2,48 GB doesn't make sense. However, 48 = 32 + 16, so I'm guessing it means there are two sticks totalling 48 GB. Still quite a bit.

SuMo Bot
SuMo Bot

Not sure if it's the same in your version of mac, but if you have something similar to the activity monitor in my screenshot take a look at it. Or just click on the apple icon in the upper left corner and then about this mac.

Modifié le par jonzn4SUSE

Poser une question

Vous devez vous identifier avec votre compte pour répondre aux messages. Veuillez poser une nouvelle question, si vous n’avez pas encore de compte.