Firefox supportforum

Firefox uses too much memory, sometimes 20GB on a 32GB Windows machine. It's usually one or two threads which are hogging incredible amounts of memory. This time I had about 30 tabs open.

Today I tried Firefox about:memory "Minimize Memory Usage" several times, and it was largely ineffective.

I did a "create memory dump file" of one 5+GB bloated thread using task manager, but can't find a way to upload the compressed archive with this report for analysis. Finding a way to report this issue was quite a challenge. It seems most help avenues are now missing/moved, and other reports of this type of issue are "Archived".

I tried killing the 2 bloated Firefox threads and checked for tabs which might be missing or malfunctioning. Everything continued to run normally while more than 10GB of memory was returned to system use. Leaving these bloated threads overnight doesn't improve anything, in fact I can often get up and find my machine is completely out of memory because Firefox consumed it all. My smallest machines have 16GB RAM.

These memory issues aren't new. I've been reporting them off and on for more than a decade. They get better for a few months after reporting, then they get bad again in a few more months. The battle to get memory leaks fixed is continuous while Firefox springs more leaks.

I'd like to give you the memory image I generated so you'll at least have some real data to look at and analyze for this report.

The attached task manager snapshot image is a very minor example of this issue. The numbers keep increasing like there are one or more large memory leaks.

Yesterday Firefox started closing at random, sometimes instantly as soon as I open it. The crash dialog doesn't open, and if I go to about:crashes my most recent unreported crash is from 2019. Tried refreshing, reinstalling, completely wiping all profiles and starting fresh. If I use troubleshooting mode it won't open properly at all. I am at a bit of a loss, any ideas?

Greetings,

My Firefox keeps crashing randomly even though it's a new PC with very capable good hardware. My old laptop used to run 100s of tabs without any issues.

However, on this new PC, the crashes are fucked even though I barely have about 20 tabs open.

Here are some crashing reports:

https://crash-stats.mozilla.org/report/index/cd41eedb-d3a3-4717-8210-d3ea70231230

https://crash-stats.mozilla.org/report/index/4f72d2f1-70e6-4499-9078-7a7760231230

https://crash-stats.mozilla.org/report/index/c43bd61d-248d-42de-aa40-fd6490231230

https://crash-stats.mozilla.org/report/index/9dc3e8b9-6871-4d4c-940d-83fa40231111

https://crash-stats.mozilla.org/report/index/61c7b9d7-bbc9-41e1-969e-7396e0231230

https://crash-stats.mozilla.org/report/index/646b38fc-e2d6-4376-8310-537960231230

https://crash-stats.mozilla.org/report/index/da22561f-eb48-4dd2-ac61-b3d7e0231230

https://crash-stats.mozilla.org/report/index/823b8e27-a69a-4251-bf71-587ec0231230

https://crash-stats.mozilla.org/report/index/6fd3ae37-b8ef-4048-ab0b-0c9c60231230

https://crash-stats.mozilla.org/report/index/22e4ea87-2622-4c2d-b731-76b2b0231230

https://crash-stats.mozilla.org/report/index/9eac33bf-dd2c-437e-a2c9-96fc90231230

Kindly help. Thank you.

115.8.0esr (64-bit)

This newest release has a massive memory leak. I know it's Firefox, because I look at the system monitor, and there are even more entries for firefox.com running than usual. The first one on the top of the list is the biggest resource hog, and the next one is second. All the rest have something going on, but smaller. Looking at performance in the Windows Task Manager, under performance, the memory usage goes up. Right now, it's 5.35Gb of 16Gb. At worst, several days ago, it was at 12Gb. When I force close Firefox, the memory and usage goes way, way down, to a usable level.

I wrote last night. "Ed" someone got back to me, didn't quote my message, and said he was from another department. I DID EXACTLY THE SAME THING AS LAST NIGHT. I hit the blue button, which took me here, and he advised me to do today, which brought me here, AGAIN.

If this, again, goes to "restoring access to Mozilla accounts and subscription services such as Mozilla VPN", please be professional and forward it to the right department, possibly with my message quoted, as this is the second time I'm creating it, and only have my memory on which to fall back for the first time. The logical topic is "Fix slowness, crashing, error messages, and other problems".

At the same time, other releases have had big memory leaks, and they seem to get patched quickly.

Thank you again.

Firefox runs fine most of the time. If I right-click to download an image, or click a link to download a PDF or other file, or Save HTML, I see the "Save file" dialog, click Save and then Firefox freezes up for a while, maybe a minute or two. Pages won't scroll. I can't switch tabs. I can bring up a different firefox window and it redraws its contents, but I can't scroll or do anything else.

This didn't happen a month ago, then one day after a system upgrade, it happens every time. I'm using FF 123.0.1 on Arch Linux. 64GB RAM, so it's not a memory shortage. I have upgraded one or two times more since the upgrade when this appeared. Chromium is not affected, Thunderbird is fine, and all other software continues to be fine as before, including when saving files. Only FF has this problem.

What is the problem and solution? Are there ways to gather more info to diagnose the problem, if needed?

On all sites where I need to login with my work account I get a tab crash when the browser redirects to https://login.microsoftonline.com/ac4b0eb0-811e-4ab0-acca-8a87079290dc/oauth2/v2.0/authorize?response_type=id_token&scope=user.read......

This is a recent failure (this week), that occured without any changes on my own account to Firefox developer version 121.0b2(64-bits)

I had to install google chrome to overcome this problem. Chrome has no issues with microsoft authentication.

Please solve as soon as possible, otherwise I will be switching to another browser.

Whenever firefox has multiple tabs open and on any single tab youtube is running i find youtube to crash lag and even crack itself by audio playing with struck video. FYI the same issue is not experienced in other browsers like brave for instance . I hope you provide attention to this problem and solve this issue as soon as possible and as I mostly use firefox to browse and use its dev tools.

Hello

Just to report Firefox 121.0.1 (64-bit) unable to upload any video formats on youtube and always having invalid video format error. I'm unable to upload even that videos what was already successfully uploaded some times ago. I using Microsoft Edge now to upload on youtube and it is fine with all my videos. Hope you can fix soon.

Since the last update (earlier this week) firefox uses large amounts of memory. It shows in the windows task manager 20 and more instances of firefox being open and one of them using 85%-90% of the available memory. I looked up help articles regarding this issue and one of them mentioned to "Delete content-prefs.sqlite file". When I do that it will help for a short period of time but then the issue is happening again. I'm using Windows 11 64 bit.

I'd appreciate some advice on how to deal with this.

Firefox has been crashing constantly for a few days now. Every time I start the program, it starts using more and more GB of RAM until it crashes at over 100 GB. I have already deleted and reinstalled the program and cannot explain why it is using so much memory. Can anyone help me?

WebGL still not present in Firefox with 21H2 Windows LTSC my previous question was closed and still no solution. Nothing advised helps the issue. On the same system it works in Nightly!!!!

So I just picked up a new laptop (ASUS Vivobook 16x), and everything is fresh on it. Additionally, this only affects some video content in Firefox, with Edge browser unaffected. In brief, what is happening is that within a couple hours of having the browser open, certain video content stops working, specifically Twitter/X videos just spin, YouTube previews stop working, and videos continually load. Netflix videos continue to work, but hover previews stop functioning. I even check the 'Stats for Nerds' on YT and it shows 0 KB network activity in Firefox.

I've tried every basic action I can think of:

• Turning off extensions (only use Ublock and Bitwarden)
• Browser Refresh (x3)
• Reverting from 120.1 to 120.0, and now 199.0.1
• Clearing the browser cache
• Reinstalling NVidia and Intel Drivers
• Running in Safe Mode

Only by doing a refresh or completely closing/opening the app gets videos to function again. This doesn't affect the old laptop or my desktop, which makes me think it's a rogue driver--but then why would Edge function without error over the same period of time?

Are there any settings to play with in the browser that can help diagnose?

I've written about this before and never got a working answer. I have to use Chrome or internet explorer for some work because FireFox won't open the sites. This problem hasn't been fixed by I clearing cache and cookies as recommended back when I first asked a year or so ago.

Now the latest website I haven't been able to use is the Post office! USPS.com -- If I try to track a mail piece using my tracking number the site can't bring it up. The site tries for long time then tells me to try later. When I try with another browser such as Chrome, the result is there within a couple of seconds. It looks like I'm going to have to leave FireFox which I hate as I've used it so long - over ten years at least.

Version 121 Windows 10

Getting to www.costco.ca impossible during past few days - disabling tracking does nothing! Tried relaxing most security and tracking settings, still no results. MS Edge works just fine, like Firefox used to until now. Guess it's time to switch if no other option.

Hi, I watch specific streaming live show on YouTube every week. Unfortunately, I always have to play it in non-Firefox browser, because the video freezes every couple minutes, while audio track is still playing in the background. Based on the comments from the stream chat, other people have this issue too. Why? How to fix it? It is annoying. Internet connection is ok. Other browsers no issue. OS Linux Mint 20 Ulyana 64-bit Kernel Linux 5.4.0-172-generic x86_64 MATE 1.24.0 Mozilla Firefox 123.0 (64-bit)

Hello! Like many before me, the tabs crash every time I got to YouTube. The only message I get is

"Gah. Your tab just crashed. We can help! Choose Restore This Tab to reload the page." This option does NOTHING to solve the issue.

Not sure why, but I've never had this issue before until about a week ago. I don't want to use another browser. I prefer Firefox.

I am currently using Firefox 121.0.

Any information/assistance would be greatly appreciated.

Thank you!

For some reason Firefox stop working about a week ago and i can get to work again. I can only open it as administrator but when it opens I cant do anything. I have tried all the fixes in the forum and nothing plus reinstalling it several times. I looked into the console and a whole bunch of errors showed up. can anybody help me?

I have a macbook pro running Sonoma 14.2.1. A few days ago I noticed the computer didn't update to the current version of Firefox when I attempted to do so after being prompted that an update was available. I went to "About Firefox" and saw the error message "Failed to check for updates". Please help. Thanks.

Every time I open Mozilla browser, it crashes right after it opens.

This only started happening since recently. Before this, I haven't faced this issue while using this browser for year(s)

I have failed to resolve the issue with the following methods:

• Updated Firefox
• Tried to use Troubleshoot Mode (crash still happens)
• Uninstalled Firefox, deleted additional files and re-installed
• Did Refresh

Other browsers are working fine

I am using Razer Blade RTX 2070 Max Q, VR Ready Graphics (8GB GDDR6 VRAM) 10th Gen Intel Core i7-10750H Processor 6 Cores/12 Threads, up to 5.0GHz

I've had this problem for a while and it's kept me from actually using the program. At any given time when I try to run the application, it never lasts for more than a couple seconds before it suddenly stops with no warning. Whenever I get these crashes, the Crash Reporter never opens. Because of this issue I can't open it in troubleshooting mode. At this point I have tried fully resetting my PC twice, uninstalling McAfee, had multiple malware scans, and have uninstalled and reinstalled Firefox itself multiple times. I'm really not all that good at operating computers, I just kind of know how to navigate files. I don't know what else to do at this point.