Firefox Community Forum

Maybe it is my spiritual guides because i obsses and have OCD and have too many tabs. But i started having tabs get deleted and i have no tabs on re-launch, tried to check, re-check this. I Am not sure if to reinstall because i don't want to lose passwords or setting/history (i don't remember now it should be saved) but usually reinstalling doesn't solve anything for me anyways...

I didn't install any new extensions when it started happening!

It doesn't happen every time so it is hard to troubleshoot, i cannot use browser with safe mode. I might test it couple times.

Suddenly my outlook account stopped working, unable to do anything, emails disappeared, is this a problem related to Microsoft Windows 11 connection? Couldn't get through to microsoft help. What can I do?

my subscription secure mah jongg game playing site is being blocked as unsafe. Ive used this site for years. please list as safe so i can access my game or i will have to use another browser.

I'm having huge memory problems with Firefox. In about:performance I can see that the extensions process takes up way too much memory. When I start Firefox it usually shows a memory usage of around 180MB. However, at some point the memory usage of the extensions process starts to increase and it doesn't stop increasing until my RAM is full and then it increases even further. It increases until I restart Firefox or until it uses so much RAM that my computer runs incredibly slow.

Below you can see a screenshot of the Task Manager showing how much RAM is available on my computer and a screenshot of the about:performance page showing the memory usage of the Extensions process. The RAM available on my laptop is 10GB (the default configuration was 4GB of soldered RAM plus 4GB of exchangeable RAM. I have upgraded from 4+4GB to 4+8GB but 2GB of the soldered RAM on this laptop are used as GPU memory so the remaining RAM is 10GB). The about:performance screenshot shows a memory usage of 13GB for the extensions process which is possible because Windows automatically pages RAM on the SSD when I'm running low on available physical memory. This enables programs to actually use more memory than the available physical RAM but of course programs become incredibly slow when the RAM is full and huge parts of memory have to be paged on the SSD.

My actual question: How can I find the cause of these memory problems?

What I've tried so far

- I have created a memory report on about:memory. The result is at the bottom of this post. - I have watched the about:performance page and tried to find out what action triggers the memory usage of the extensions process to increase. At the start of the browsing session the memory usage is only at around 180MB. It stays like that for a while. At some point it starts to steadily increase by many GBs. But I couldn't find the cause. I don't know what triggers the extensions process to increase memory usage. - I could simply disable extensions and see if the problem gets solved. But I want to know which exact extension causes this problem. It is very difficult to find out which one it is because I have many extensions and I don't know what causes the memory usage to increase. So I would have to disable extensions one by one and wait for an indefinite amount of time and check whether memory usage stays low. But I don't know how long I have to wait until the memory usage would increase because I couldn't identify what triggers it to increase.

Rather than just using trial and error I would like to find a way to use debugging tools to exactly determine what causes the problem.

_______________________

This (https://pastebin.com/U3QXTAt9) is the memory report from about:memory. This contains the whole extension (pid 18332) section (copy & pasted by selecting the text on the about:memory page). I have left out the rest because I don't know if it contains private data. Please note: this is not taken from the same browsing session as the screenshot that shows a memory usage of 13GB. Why? Because programs run very slow when memory is low and large parts of memory are being paged. The debug tools usually require a lot of RAM and CPU performance so it's very difficult to use the debug tools when the memory is already full and programs are already running slow. This memory report shows a very high memory usage of the extensions process. In this case it's "only" 3.5GB but it was taken in an early stage of the increasing memory usage. As shown in the screenshot below, memory usage can go even higher than the available physical RAM on my computer. The memory report doesn't clearly show which extension is responsible for the high memory usage. In the memory report, I can only see a high memory usage for the items gc-buffers and gc-heap which leads me to think that the memory problem has something to do with the garbage collector. However, I cannot see which extension is responsible for this. No item in this list with a description that identifies a specific extension has a high memory usage. This is only an excerpt from the memory report (only the extension section). I went through the whole memory report with Ctrl + F "moz-extension" and looked for items with a high memory usage but I didn't find a single item with high memory usage that belongs to a specific extension.

Hi there all!

I have been using these Add-on's for years and suddenly this week they 'dropped off' - note the greyed out ones that no longer work. I did report the add on's via the button inside to the developers as potentially broken but I'm not sure how I would hear anything back from them about that. After about 4-5 days now they are still not working. I'm unsure why they are greyed out, and the others are not - why these stopped working and the others ok. Here are the screen shots of the ones I'm referring to! They were *VERY GOOD* add on's! I would super love them back.

If you have any advice please let me know.

Thank you.

'Every time' I'm on a webpage I get that question if I want to have this page translated into German.

PLEASE - How can I deactive this !!!

wie kann ich das Beta Fenster übersetzen ausschalten / deaktivieren?

Hi everyone,

I have a quick question.

Our product uses Firefox, but on March 14, 2025, the root certificate expired, and now we can't use add-ons. If we update Firefox to a newer version, the add-ons start working again—but do you know how long the certificate in the new version will be valid?

Looking forward to your reply.

Hi everyone!

I’ve been using Firefox for years, but my bookmark bar is turning into chaos 😅 Between work, tools, articles, and personal stuff, it’s getting hard to keep track of everything.

I’ve tried folders and naming tricks, but I feel like I’m either clicking too much or forgetting what I saved.

Curious to hear what methods or extensions others here are using to keep bookmarks clean and accessible? Any tips or workflow ideas would be awesome!

Thanks in advance

I cant log in into my MercadoLivre.com.br account through Zen Browser. It asks for Face Authentication, and even granting access to Zen Browser in MacOS setting to allow use the camera - it doesnt work. I tried restarting the browser and computer, and nothing works.

With Zen Browser not being able to stream Netflix, Spotify, having issues with Camera access - you should be warning people on your website about those things...

Hi im using the "zen" browser i dent really understand that whole browser, search engine stuff but i think it uses some kind of fire fox. the problem is that when i am on some websites for example chess.com, or this websites the browser is just downloading random .dms files they dont have any content and the name is 100% random here are some examples: 7cPAk3s5.dms, yu5zp0Z3.dms ,gAQGSElz.dms (i hope i didnt leak some stuff) as i said i dont have enough skill to find the problem and on the internet there isnt any info. But i tried some stuff like disable some random stuff but nothing helped this only happends only on the Zen browser and on opera or safary everything is normal. (this isnt my first language, im sorry for any typing mistakes and if anything else is used im happy to provide)