Forum der Gemeinschaft Firefox

Firefox kept eating my RAM, running dozens of processes. I have gone into about:config and set the dom.ipc.processCount to 1 - then I restarted Firefox and found 5 processes running straightaway before even using the browser. I closed it down and have started it again and now there are 11 processes running with just one tab open. Firefox(9044) Utility(7552) JavaScript oracle Network (15912) Data Decoder (11364) GPU (18744) About pages (12536) Preloaded new tab Extensions (20544) Preallocated (16132) Preallocated (13780) Preallocated (16044)

The problem repeats on three different computers which are not infected with malware. One computer with slightly less RAM I now cant even use Firefox at all (though all other browsers work fine) because the tabs constantly crash due to the high number of processes. Is there any way to set the process limit low in a way that Firefox actually responds to?

For example, the word thema, is exclusively capitalized in German, and it shows as error indeed when lowercase, but the capitalized one is not offered in the options. Why is that and how to fix it?

Also, is there a way to autocorrect capitalization for example?

"Invalid or expired code. Check your authenticator app and try again."

Видається вищезазначена помилка, коли пробую налаштувати двофакторну авторизація за допомогою Google Authenticator або Microsoft Authenticator.

The other day I attempted to use a script in the Greasemonkey extension, which would not work for me. I deleted the extension in the end, but in the process of trying to get it to work, I disabled all other extensions for a time to test what the problem might be.

Ever since then my profile seems to be corrupted in some way. I have refreshed Firefox, as well as made a new profile to test where the error must be. As soon as multi-account containers is reinstalled, the problem returns. This includes the fact that yesterday, for unrelated reasons, I decided to install Linux Mint for my OS and stop using Windows - as soon as I signed in my Firefox account and the profile synced in the new OS, the error returned. (The attempt at refreshing Firefox was done after installing Mint; the test profile was done on Windows.)

This is the behavior I'm seeing:

- I cannot drag a tab that's logged into a different container into a tab group with tabs that are not signed into any container. This includes tabs logged in on the Facebook container. - In fact, I cannot drag any tab that is logged into a container anywhere - they insist on being all the way to the right in the list of tabs. - If a tab logged into a container is all the way to the right in any given window, the button to open a new tab will automatically open the tab in that container instead of opening in no container, which is my preference.

I use the multi-account container extension extensively and would like to see this fixed. If anyone has any idea of what could be happening here I'd appreciate the help!

Following a restart, Firefox has installed this icon on my desktop: "Linguistic handbook feeds backup.opml", with the Firefox picture.

All it does it is take one to a browser page opening the file on my C drive, and saying blankly: Firefox Live Bookmarks. (Incidentally I cannot see this file listed anywhere under Mozilla in Programs or Programs , so I suppose it is nested in something else.)

I assume I can delete this without damaging Firefox for all eternity, but I am curious to know how it got onto my desktop.

I assume the "linguistic handbook" is not actually what it says but something to do with the many languages Firefox is translated into, yes ? - or does it really deal with catenatives, anaphora, kernel clauses, retorts (et al.) used as a test of auxiliary status, or whatever ?

Hello!

I'm a daily user of firefox and for years I've used the pinned tabs to save my current videos, websites, whatever so I can watch later. Never had any major problems, if I accidentaly closed a firefox window with the pinned tabs while having another firefox window opened, I would just "Restore previously closed window" and get all my stuff back. But now, from yesterday night 2025-08-31 to this morning 2025-09-01, I opened firefox on my PC and my tabs were not there, there was also no option to restore the previous session or window, I simply lost all the stuff I had stored.

I perused the files in the dir `sessionstore-backups` of my profile and they are all from this day, not from the previous day.

Is there any way you guys store those backups from previous sessions when syncing my data to your servers? Can I recover these at all?

Cheers

Every since I updated my MacBook Pro M1 Max chip to Firefox 142.0.1 (aarch64), Firefox locks up & has to be "Force Quit" & restarted almost every day. Please update the app ASAP so I don't have to convert to Google Chrome. Thank you!

So the other day I spent hours deleteting old bookmarks (and bookmarks that have for some reason duplicated) from firefox browser, alongside tagging them and other housekeeping things but when I went back into the manage bookmark page all the things I did yesterday had reset so all the bookmarks I had deleted came back all the tags (but one) I made gone. So how do I stop bookmarks resetting to what they were?

After 11 year I suddenly can't access my Wordpress blog on Firefox. I have to use Chrome to access it - with no problems. I have been on Ubuntu Elementary for years years and have never had difficulty accessing my blog. I have uninstalled and re-installed Firefox twice, I have emptied my entire cache and cookies. I also tried to empty my DNS on Ubuntu Elementary but my version doesn't have DNS. The problem started 24 hours ago.

HI, After upgrade to Seqouia 15.6.1 an extension for developing Oracle APEX applications breaks Firefox. It is the only extension I have installed. Console information is not really that helpful. Maybe you can make some head and tails about it.

Whhhhyyyyyy am I suddenly unable to access certain parts of the Delta.com website?? I had no problem with the website re my outbound flight and now I can't access any info on my return flight on their "flight details" page. They had to send me a screenshot of what they had on their screen because I cannot get it on my own screen. I am worried as I get closer to my departure date that I still will not be able to access my flight info and will not be able to check-in! They told me to change browsers! Help! 😳

Hello Community - I am Darren Chaker and am inquiring whether Firefox or any other Mozilla browser has a built-in feature for a permanent, secure erasure of browsing data like cache, history, cookies, and site data. Specifically, I'm looking for a function that doesn't just delete the pointers to the data but actively overwrites the data on the storage drive, making it unrecoverable even with forensic tools.

I consult with various people and organizations where who want to only perform a limited function within the browser in lieu of running an entire secure wipe throughout the entire computer using software to conduct a multi-pass wipe, or Cryptographic Erasure where the encryption is destroyed.

Some clients in the legal, financial, and government sectors require data security and sanitization dictate not just best practices, but often legal and regulatory requirements. For these professionals, when data is marked as "deleted," it must be truly and permanently gone. The distinction between a standard file deletion (which often just removes the file system's reference to the data) and a secure wipe is critical.

Currently, I rely on third-party software for these tasks and often recommend solutions like Cryptographic Erasure for sanitizing entire drives by destroying the encryption keys. However, this is for the entire storage device. My question today is focused specifically on the browser level.

When a user selects "Clear Recent History," does Firefox perform any overwriting passes (e.g., a single-pass zeros write), or is it a standard OS-level deletion? If this functionality doesn't exist natively, are there any trusted, Mozilla-vetted extensions that offer this level of secure data sanitization for browsing activity?

Having such a feature natively or through a recommended extension would be an invaluable asset for users who handle sensitive information and require an auditable level of data destruction within their browser environment.

Thank you for your time and any insight you can provide.

Best to everyone here, Darren Chaker

I'll be honest, I have strong ethical objections to "generative artificial intelligence" (genAI) on a range of issues, and I have seen no sign that the industry is capable of, let alone plans to address any of them. But I'm not here to debate genAI, I'm here because I require a work enviroment and tools that make it as easy as possible, preferably default, to avoid genAI.

I'm deeply disappointed that the Mozilla Organization has decided to add genAI to label tabs in Firefox. Even if I didn't have ethical concerns, I would still be disappointed at the bogged-down performance and genAI hallucinations that make this change categorically a downgrade.

I respect other users right to do things I find harmful, and the Organization's authority to make decisions. I treat genAI much as I treat smoking, everyone gets to make their own choices, but I have the right not to be exposed to second-hand smoke. Having genAI options default to on is like having somone blow smoke in my face, and when they can't be turned off, it is like having an acquaintence who insists on smoking in my home: I won't have them over (use their software) any more.

I'm in the process of kicking the people who smoke in my house out, and minimising my exposure to "second-hand smoke" (unwanted genAI). I've been a Mozilla user and proponent since the Organization was founded, and was a Netscape user before that, so I don't want to lose an old friend... but I am looking into other options.

Hi. I have been using Firefox with DuckDuck Go extension for maybe 6 - 7 years now. This worked well with Gmail, no issue. Since July 2025, an update came through in Firefox and now an issue with Gmail. The mail opens properly but after 5 to 20 minutes the responsiveness slows down to stop. A pop up above the mail view states that Firefox is causing the slow down and there is a button to press to stop the issue. When pressed, the mail screen is frozen and I have to exit the G mail and restart. I have uploaded the most recent version of Firefox.

Firefox Ver 143.01.1 64 bit.

Windows 11 Pro

Cannot find the version of G mail used, but it is the latest update.

I have contacted G Mail about this issue as well.

How to resolve the issue, going on since sometime in July? I was hoping that a recent update by Google or Firefox would resolve, but it has not.

Very annoying especially when corresponding or trying to load attachments. Please help.

stickum333@gmail.com

saw a post that recommenced to installing K-Lite Codec Pack would help so that i could set 1440p on Twitch because the option is greyed out for me. after installing it, twitch gets hung up and never finishes loading. it loads in a private window, and on edge too. i turned off the few extensions i have but that didnt help either.

i uninstalled the codec pack but im still getting the issue.

if i hit F12 i see theres an error Loading failed for the <script> with source “https://assets.twitch.tv/assets/6411-9f5e77558af00b1acec0.js”.

thnx!

Hello, FF support forum,

I think I have seen a Container retain my login to a site when I open it again after closing it. Is there a way to configure Containers so that they are mini versions of the dump-cookies-temp-data when I close Firefox entirely? I would so love that functionality.

Regards, G.W.