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Firefox RAM usage on M1 Mac has dramatically increased. Unfortunately, b/c the memory usage is in firefox parent process, I can't simply terminate a process corresponding to a "tab", meaning I have no choice but to restart Firefox (closing & reopening all tabs) every hour or so of usage.

This is a new issue from a long-time firefox user (on multiple operating systems). It happened after I upgraded the Mac to "Monterey", which may or may not be coincidence.

Hi everyone,

I have the problem in the Subject line. FF sucks about 500 MB to be run, on top of which it takes 500 MB per tab, and that makes it impossible to run a research on my 8 GB Mac. Yesterday I was looking for a lamp and had no more than 7 tabs open, 3 of which were largely text, 2 were online shops, and 1-2 were websites with pictures. No Facebook or social media, no YouTube. FF froze, made the whole Mac freeze (well, Mac is garbage nowadays but let's leave that out of this topic), and I had to wait MINUTES before I could close it, because the computer was nonreactive.

When I check online, I see people being like "why can't it manage more than 50 tabs?". 50?!?! My computer dies with a maximum of 10 when it's only text websites!

So, I guess there's something wrong with this.

- I don't have many extensions (SimilarWeb, VPN, and Flash Player), I always use incognito so I can't use the plugin that allows me to use several accounts at the same time, so I can't see what's messing with my Mac. - The Activity Monitor (pretty much Task Manager on Windows) shows "FirefoxCP Isolated Web Content" for each tab, could that have anything to do with my problem? - CPU usage is very low, some 0.5 to 10% max during heavy use. - I seem to remember I used to have dozens of tabs open in the past, although I can't be sure. Is this a recent problem?

I really hope there's a way to solve this, because now I always fear that opening FF while on a Zoom meeting might freeze the whole thing.

Thanks to anyone who might want to shed some light on this big problem.

Screenshots: RAM and CPU usage with 2 tabs open. Two, taking more than 1 GB of RAM and about 250 threads in total? While using 0.2% of the CPU? I'm lost

After this last update Firefox is really slow loading pages and has crashed on me multiple times, I have also noticed if the browser is up it slows other programs down now like when im burning a cd. Is anyone else experiencing this? Thank you

On a daily basis I am getting a popup that asks me to force quit applications since the system has run out of memory. In the list of apps, Firefox Nightly is always using 100GB+ of memory. I restart Firefox and then get the same message the next day.

I had 9 Firefox applications running in my Task Manager which was taking up too much memory (over 50%)

I came across this topic and solution here and reduced the processes in the settings from 8 to 5.

Instead of reducing the number of processes - as stated in your reply - they have increased to 11 with only 2 tabs open.

Any idea what is going on here, and how can I REDUCE the number of Firefox processes?

Several weeks ago, because it seemed to be a Gmail-tab-only problem, Firefox Support advised us to contact Gmail Support.

It is now clear that the problem is with the Firefox browser. The attached screenshot shows an example of an affected tab.

Please fix this. Multiple versions of the same tab waste RAM and other memory, especially on a limited-memory device such as a laptop.

The past week or two it has been acting haywire and crashing daily. I uninstalled, re-installed, re-started computer. Nothing helps. I have attached picture of error message. windows 10 firefox version 92

https://imgur.com/a/L0JnN4P

picture crash report

Hi, since the last update, Firefox is taking a huge amount of memory and slowing everything else on my PC right down. Right now this support tab is the only webpage I have open, yet you can see in the screenshot there are 31 Firefox processes running, and over 1G of memory being taken. I've followed all the help threads and taken the steps in them - it's made no difference. Please can you help me find a way to tame Firefox. Also - I'm really not an IT expert at all so please can you tell me in very simple language :)

Firefox suddenly started using more memory overtime like than i doubled check both in chrome and firefox like in chrome it is staying at a certain amount of memory for whole day and in fire fox it just starting to use more memory like i started using firefox because chrome is using high memory and now firefox suddenly started and it is not even staying at a certain amount of memeroy in ram so yeah i think its a glicth in new firefox update and if u fixed that than i can come on firefox again but now i am using chrome.

I am getting frequent crashs and many a times my pages will become unreadable, again automatically text changes to normal format after sometime. I am attaching screenshots.

Please also help me that why firefox tabs suddenly crashes. I am facing this issue only in mozilla firefox, all other browsers like chrome, IE and softwares are working smoothly.

I had a problem a while ago with crashing, which i was able to get fixed thanks to this but now i have a new problem. It seems that firefox is having memory problems of some kind, for example, i can't even get stream raiders to load.

I just installed firefox on a brand new Windows 11 PC and Firefox continually crashes. I did a clean install and still I can't go a couple of minutes without a tab crashing.

Here are a bunch of the most recent: 44ff3780-ddbd-4fa7-88a3-a606a364988b 3b24eea5-9a72-46dd-a635-273a20269eb3 056a49bf-0388-4b16-ab5e-9e023ebfb3d8 08b199d3-9631-4cfe-9b3b-44a8869c3949 02cf78b7-9c94-4905-9c0e-49e38998453f 66220c6a-3466-4fed-b394-f8d00a0cdee5 26c2bfba-1f66-4257-b4a5-76ac54a7dc65 532a5cda-40b2-4dff-aae9-2bb387e5d64f 32670407-0436-47f1-9728-ac9730a3b320