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