Firefox Community Forum

I’ve encountered a problem with Firefox that it fills up the RAM memory to the brim (12Gb) and especially when you’re on Facebook, it doesn’t empty the RAM memory but the data remains, you have to close Firefox and lose your web page, it just fills up, Why, should it be like this, very annoying!!!? :flushed_face: //A-B/Sweden

When there is a field to fill in my credit card info, the info will appear and let me select the CC I want to use but when I move away from the field the CC info goes away.

if I had 30 bookmarks, there was no problem to sort all by name, if I´ve had 40 bookmarks I must sort it 3 times but then it works. But now I have more than 50 bookmarks and I testet it every update but it dosen´t work, why ?

Very often, Firefox asks at startup: “Should I open Firefox every time I restart my computer?” I don’t need this function, how can I remove this request forever?

There are only two buttons: 1. Yes, open Firefox 2. Not now :(

I use Firefox daily for website management, analytics dashboards, and multiple browser-based tools. When running several tabs and extensions at the same time, I sometimes notice slower performance and increased memory usage.

I would appreciate guidance on: Recommended settings to optimize Firefox for performance Best practices for managing extensions efficiently Whether hardware acceleration should be enabled or disabled Any advanced settings that help improve stability The goal is to maintain smooth performance while working with multiple active tabs and web applications.

Thank you in advance for your support.

Ever since the last Mozilla update several of my financial institutions or bill payment sites keep coming up with security certificates warning screen. Is this a known issue and will it be fixed?

Can log on to the Google Maps Web Site OK. However, trying to log on to my Google account (in Google Maps) I get the following message: "We've detected a problem with your cookie settings. ". If I try 'Private Browsing' in Firefox (CTRL-SHIFT-P) I am able to log in. However, this seems to have lost all of the Open tabs that I had in 'ordinary' Firefox.

WITHOUT FAIL, I AM INUNDATED WITH YOUR UPDATE POP UP ON A DAILY , AND, MOST TIMES, MORE OFTEN.

THIS HAS GONE ON FOR AT LEAST 5 YEARS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ISN'T IT ABOUT TIME THAT YOU ''''''FIX YOUR PROBLEM?'''''''

Cut the crap and get your act together and yes, I clear my cashe, etc which DOES NOTHING - BUT YOU ALREADY KNOW THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Hi! So I have Windows 10, but don't know if that's what's causing these issues. Certain websites, that is, Instagram, Bluesky, Youtube, Yahoo, Facebook, and Norwegian news site NRK, as far as I've seen, are not loading properly. Insta and NRK are in simple mode, no matter how many times I refresh Yahoo initially says "failed to load", then resolves itself upon refreshing, but it's really annoying to have to refresh for every message and going back to the main inbox Youtube videos are stuck on the spinny wheel of death, and along with Reddit, one other symptom is that the profile pictures won't load. Reddit posts also won't load beyond the first few, and "continue thread" doesn't do anything Facebook won't load at all, still nothing as I refreshed just now. Bluesky, I'm not sure is Firefox's fault, or what, but I get the "Oops network error", at least on one user, it turns out, but not another, nor on Bluesky main page (I swear, it sometimes feels like at least Meta has something against Vivienne Medrano, because I was also having issues with Insta not showing posts in full screen mode before this became an issue, and it was only majority Hellaverse accounts that had these issues. The Bluesky account that won't load is also a Hellaverse account. Either way, that's not here nor there regarding this issue)

What on Earth is going on?! Is it that I have too many tabs? I do have around 1000 tabs, which I guess could be an issue, but it hasn't been until today, two or so hours ago. I was even fine last night! Is 1000 the limit, or something? I do have some ad removers, which btw, some other video watching sites suddenly won't load the videos unless I turn the adblocks off, not cool

Please respond quickly, I am losing my mind here /halfjoking -Helene

Hi Firefox support,

I’m experiencing a persistent issue with Google Fonts (.woff2) on Windows 10. Only on some but not all pages whoch are using Google Font woff2: Fonts display correctly after starting Firefox, but as soon as I reload the pages with for the first time, they appear corrupted and remain broken. Private Browsing mode renders the fonts correctly, and Chrome does not have this problem.

Below is a detailed list of everything I’ve tried with ChatGPT so far to troubleshoot the issue.

(OS: latest Windows 10)

Browser: Firefox (freshly installed, no sync)

Behavior:

Example site: https://www.linguee.de/

Steps already attempted:

Disabled all extensions

Tested in Firefox Safe Mode / Troubleshoot Mode

Created a new Firefox profile

Fresh Firefox installation without signing in

Deleted all relevant caches:

%LOCALAPPDATA%\Mozilla\Firefox\Profiles\<profile>\cache2

%LOCALAPPDATA%\Mozilla\Firefox\Profiles\<profile>\storage

%APPDATA%\Mozilla\Firefox\Profiles\<profile>\startupCache

%LOCALAPPDATA%\Mozilla\

Verified / adjusted Firefox config in about:config:

browser.display.use_document_fonts = 1

gfx.webrender.all = false

WebRender running in WebRender (Software) mode

privacy.resistFingerprinting = false

browser.cache.disk.enable = false

network.http.rcwn.enabled = false

accessibility.force_disabled = 1

Disabled hardware acceleration for testing

Tested DirectWrite / Direct3D settings

Recalibrated ClearType

Ran sfc /scannow to repair system fonts

Temporarily disabled antivirus / web protection

Tested behavior in private mode versus normal mode

Observed that hard reload (Ctrl + F5) does not fix fonts

Noted that only .woff2 (Google Fonts) are affected; system fonts render normally

Summary:

Issue is not caused by extensions, profile, cache, or a fresh install

Private Browsing works → problem is related to persistent normal-mode caching or rendering

Only occurs in normal windows, consistently reproducible after first reload

Problem seems specific to .woff2 font handling and Firefox’s rendering pipeline on Windows 10

Why can't I go to saltlife.com when I've gone to this 333 times and ordered items from them for YEARS? Also, when I'm at Kohls.com, I cannot access a site, when shopping to access part of my shopping experience. Am I going to have to change my browser to be able to shop there? I have used Firefox for years, and up until now, I've never had this problem.

Since I upgraded from FF128-esr to FF140-esr I always get the "Firefox is being updated by another instance" This is really driving me crazy, as I checked / did / .... everything (and even more) I found on the internet related to that.

Nothing helps !

Creating and using a new default profile didn't help

Finally I ended up uninstalling FF completely (making sure no -zero- leftovers remained in ProgramFiles, AppData a.s.o.), and reinstalled FF140.7.0-esr freshly. After installation I started FF immediately with the created default profile (only existing one) --> SAME THING : "Firefox is being updated by another instance"

And this is really a FF140 thing, when I go back to FF128, on the same computer, same profiles, ...., the problem is gone.

I would like to know in detail what checks are really done by FF to decide to give that "Firefox is being updated by another instance"

Noticed the bookmarks error message at the top of the browser page then looked to find they were gone, no troubleshooting methods have worked and I don't seem to have any backup files. Bookmark manager is blank and there are no selectable options?

Hello, I am facing a strange issue while using Firefox browser. When I try to play LetterBoxed NYT, the game sometimes gets stuck on the loading screen or loads very slowly. The same website works fine on other browsers like Chrome and also on Android devices, so I’m not sure if this is a browser compatibility issue or something related to caching, cookies, or browser settings.

I have already tried clearing cache, disabling extensions, and updating Firefox to the latest version, but the issue still appears occasionally. Could this be related to browser security settings, DNS resolution, or performance optimization? Please guide me on what settings I should check or change in Firefox to make this web game run smoothly.

Every time I try to use my camera or microphone on some websites from on firefox it says can't detect camera or microphone? It doesn't show up with the 'allow this website to access your camera/ microphone' pop up it does with other websites. I went into permissions and manually changed it myself and it said it still couldn't detect the camera/ microphone

I have a weekly appointment in google meet. My main browser is firefox, and when I try to join there is no video available.

I have checked that my laptop camera works in general, and that google meet has working video on another browser, so the issue seems to be with the permissions google meet has for firefox.

Every time I join the meeting, there is the pop up which asks if I want to allow the use of my camera and microphone. I always click allow. Recently, even after doing this I dont have video footage.

The meet page does not say that my camera is off.