Firefox Community Forum

Hi. Recently, a old issue has comeback on my firefox. When I load youtube video, or a twitch livestream, at 60FPS, and I scroll down the page, the scroll "lags" until the player is off screen. By lags i mean it slows down the scroll and is no longer smooth. This is an issue I've had before and had successfully dealt with by accessing about:config and turning media vp9 off, but it has returned fairly recently, since I do not remember this issue happening before the last week, maybe two. Another issue, also on youtube, is that when I scroll down through shorts, sometimes after a couple of videos, the browser will visually freeze entirely, but will still allow me to click things on the page and also play sounds. After about 20 or so seconds, it will unfreeze and work normally.

I understand that this issue, atleast the 60fps scroll lag, has been an issue for a while and I have tried multiple fixes for it, changing various boolean settings, refreshing firefox, updating my Nvidia drivers to the newest via nvidia app which i should add has never been an issue for the past few months and has worked flawlessly and my nighmarish evening of troubleshooting ended with me completely fully uninstalling firefox and redownloading fresh, but the issue presists.

It should be noted that on other browsers, I have no such issue. Im not sure if mentioning this is some sort of taboo or persona non grata, but i also downloaded and tested Waterfox, and it also does not have this issue. The only band aid fix I found for the moment is that turning off Hardware Acceleration fixes the scroll issue, but it causes awful screen tearing, which is just as bad and distracting.

So to my understanding, 3 potential things are happening. This issue is just in my head Something on my pc is dying and I have a mechanical or software problem Or finally, there is some issue with a recent update, either with firefox or maybe some driver somewhere causing an issue. It just upsets me greatly due to this being a relatively new issue. As stated I have dealt with the scroll lag before and did find a permanent fix, and firefox has since worked literally flawlessly for months/years. But now, somewhere within the last week, maybe 2, something has gone wrong. I hope this gets fixed in an update, or if others have this problem there is a fix. Thank you.

I've just upgraded to V149 and, when using NordVPN, Firefox is now taking at least 30secs to startup. If NordVPN is off startup is instant. Prior to V149, Firefox startup was instant, both with and without NordVPN.

Hallo,

ich habe regelmäßig das Problem, dass Firefox quasi meinen gesamten Rechner ausser gefecht setzt indem nahezu die gesamte CPU Leistung und der Arbeitsspeicher in Beschlag genommen werden. Ich surfe in der Regel mit sehr vielen Tabs. Ab ca. 100-150 Tabs benötigt Firefox bei mir zwischenzeitlich 10 GB Arbeitsspeicher und mehr und benutzt die CPU zu 80-90% sodass der Rechner teilweise kurzzeitig nicht mehr reagiert und einfriert. Besonders, wenn ich 100 Tabs und mehr auf einmal als Lesezeichen speichere (Tabs auch nur schließen, da der CPU Lüfter schon dauerhaft auf 100% läuft), friert der Rechner danach erstmal für 3-4 Minuten ein. Ich verstehe nicht, was Firefox die ganze Zeit im Hintergrund anstellt, während z.B. 250 Tabs geöffnet sind. Tabs vorzuladen macht bei der Anzahl keinen Sinn und die Wahrscheinlichkeit, dass man richtig voraussehen könnte, welchen Tab ich als nächste wieder aufrufe und dieser dann schon vorgeladen ist, ist eher gering. Gibt es Möglichkeiten z.B.: - den zur Zeit verwendeten Arbeitsspeicher sofort zu leeren, ohne einen Tab zu verlieren oder dass Firefox geschlossen wird? - dass es dann längert dauert, wenn ich einen Tab anklicke, da dieser ja nicht mehr im Cache ist, und erst wieder in den Arbeitsspeicher geladen werden muss, ist selbstverständlich und vollkommen in Ordnung. - Kann man irgendwo einstellen, wie viele Tabs z.B. im Hintergrund aktiv sein dürfen? - Kann man den zu verwendeten Arbeitsspeicher begrenzen? - und was passiert, wenn die Grenze erreicht wird? - Kann man irgendwo an den Zeiten oder ähnlichem schrauben, wonach Tabs automatisch entladen werden? Chrome friert Tabs scheinbar automatisch ein, zu mindest ist die performance dort besser.

Es bringt ja nichts, wenn alles versuche wird im RAM vorzuhalten, damit es sofort da ist, wenn der ganze Rechner damit in die Knie gezwungen wird und am Ende das gesamte System nicht mehr zu bedienen ist. Vor einigen Jahren ist Firefox bei zu vielen Tabs oft abgestürzt, dann hat sich schon gebessert.

Es fehlt mir an Einstellungen zur Anpassung, was Firefox im Hintergrund vorhalt und was Tabs machen dürfen, wenn sie nicht aktiv bedient bzw. benutzt werden. Manuelles "entladen" kommt für mich nicht in Frage, da es zu aufwändig ist, bei extremen "Multitabbing".

Ich bin seit meiner Kindeheit begeisterter Mozilla Fan (seit Gründung von Mozilla) und verteidige und empfehle Firefox wo ich nur kann. Aber dieses Performanceproblem besteht schon sehr lange, ist zwar über die letzten Jahre besser geworden, dennoch zwingt es mich schon fast, nach einer Alternative zu suchen.

Generell fehlen viele Funktionen für Extrem-Multi-Tab-Benutzer wie z.B., dass man Tabs in der Leiste markieren oder sortieren kann. Ein großer Segen wäre eine Funktion, dass Tabs, die man bereits als Lesezeichen gespeichert hat oder doppelt geöffnete Tab, direkt zu erkennen sind, ohne dass man den Tab aufruft. Aber andere Thema. Ich benutze auch keine vertikale Tableiste, nur die horizontale klassische Leiste oben am Bildschirmrand.

Ich wäre sehr Dankbar über Tips zur Lösung des Problem mit dem Arbeitsspeicher.

Grüße

I've just now noticed that whenever I open the website hxxps://www.hex-rays.com it will hang without finishing loading for a couple of seconds, then the entire browser will freeze. I've already tried on a new profile, verified that no addons or plugins are installed there, and no DLLs hooked into the process. This happens on my physical PC and in an (almost unused) VM, with an ancient version 134.0 and the latest 149.0.

Can anyone else replicate this? Should I create a bug report?

My question is a very obvious one if you look at the two screenshots I've attached. The 'X' to close the Firefox browser keeps disappearing, along with the 'maximize' and 'minimize' options as well. This has been happening for months. The recurrence rate is 50/50 each time I open the FF browser. It's not just an issue with closing or minimizing a page, it also removes the access to my Windows taskbar at the bottom!! Normally, when I move my mouse to the bottom, my taskbar pops up and I can access whatever I need, BUT when the FF browser has NO 'X' at the top corner, my taskbar won't show up at all! This is finally getting on my last nerve!🤦♀

Any knowledge as to why this keeps happening?🤷♀

My FF browser is up to date, as of yesterday. My default search engine is google. My PC is still running Windows 10.....could this be the problem?

Kubuntu 24.04 with various Firefox iterations including 149.0.2. It happens on stand alone, snap and flatpak versions. I do not know what triggers this problem. As far as can tell it only occurs on Wayland and not on 'X'. .... After using Firefox normally for a while I first notice the problem when I can't click into the separate search box on the toolbar, then I find I can't drag the tabs around as per usual. Then, if I click on a toolbar icon it does not respond. In summary, the toolbar becomes inoperative. I do have 9 pinned tabs but I can often have many more standard tabs up before I ever notice the problem and, today, when it occurred I only had 3 additional tabs up. So, I can't tie the problem to the number of tabs.

I noticed in the past day that Firefox started using alot of ssd. It wasn't doing this before, I've been a Firefox user for years now. I'd like to stay that way rather than going with Google or Microsoft. I don't trust some of the other small companies with browsers. I like the fact that Firefox uses it's own engine too. In the last day it started using alot of disk for no reason. How do I fix this. Well, well, well. I just noticed that Icloud from Apple was using alot of disk too and when I shut it down in task manager it stopped. Firefox disk use is virtually none just like Microsoft Edge. So it's some kind of interaction with Icloud that is causing that. But it wasn't doing that before. I have task manager open most of the time to catch stuff like that. My system is decent I have a 2TB 990, 2TB 980, and a 2 TB 860, with and AMD 5800x, 32 GB of ram and an Nvidia rtx 470. Maybe some kind of backup with Icloud was happening, that isn't with Edge. So I know shutting that off works. Icloud is useful for backing up things from my phone though.

Everything is gone from the browser today. There is no content in the menu at the top right, except for keyboard shortcuts. When I type in the search bar, nothing happens, and clicking the + to open a new tab does nothing either. My account is still showing at the top, I am signed in and the profile looks fine. I can't "refresh" the browser from the menu, as that is not an option.

UPDATE: FIXED - Today, April 13 - everything is back - I guess Firefox fixed itself.

Hello all,

I've been a long time Firefox user and recently (starting about 2 months ago) started seeing some irritating behavior while browsing. Firefox will at random intervals "gray out" either while interacting with specific webpage elements, or browsing specific websites. An example of this "gray out" condition is included as a screenshot. The browser will flicker between this "gray out" condition and the webpage, occasionally staying in the "gray out" state for 3-6 seconds. As you can see in the screenshot all Firefox UI elements are also missing, so this seems to be broader application issue. I've noticed this particular issue repeatedly on Amazon.com while moused over product photos.

I consider myself a power user. As for my PC, it is running Windows 10. All graphics drivers are up to date. Other apps run normally. I've never had any problem browsing/interacting with similar web content in Microsoft Edge... but I heavily prefer to use FireFox. Has anyone else encountered an issue like this?

Using cmd-tilde keys on MacBook Pro to change front viewed page no longer works reliably under Tahoe. Any workaround? Also, Firefox sometimes freezes Navigation between programs, and the only way to navigate is to quit Firefox. I'm on Tahoe 26.4 MacBook Pro 2023 M2 Max. Thanks.

After the version 149, a very strange issue happens to me with Firefox. When I try to log in to some services (Google account, WhatsApp, Mozilla account) the browser freezes. That does not happen if I turn the hardware acceleration off so I essentially thought there is some issue with my graphics drivers which I then updated (Nvidia 580.142 drivers for Geforce GTX 960). But what is very strange is that the issue isn't present when I use Firefox in private mode! That means: Normal mode, HW acceleration on -- freezing Normal mode, HW acceleration off -- not freezing Private mode, HW acceleration on -- not freezing I switched to the ESR version now which works fine too. Still, I am curious about what is going on and I would like to find a solution. My system is fully updated Arch Linux. I cannot share my data since I can't log in to my Mozilla account. Thanks in advance!

Not sure if this is a Firefox or YouTube bug.. it's really annoying and happens quite a few times each day I use my PC.. Is there any solution to this or perhaps reverting the update til this is resolved? I usually wait fo rit to stop lagging or if I'm not patient enough.. I'll just close Firefox entirely and re-open. Thanks.

After updated to 149. Tab unloader is totally broken, unloaded tabs won't be discard but hold in shared web processes then reload right away. Extension process ram consumption bloated then cause browser lost response. If it not a hard hung up it would stop loading data from web. And/Or not operate when switch tab. Every action is risking frozen only way to unfreeze is to kill the extension process while risking complete lost of response. Never seen such piece of shit in decades.

For the last couple of days, the Firefox instance goes black and the title bar turns to an old windows look (see picture). Or turns fully blue, the color of browser theme, and the title bar is covered as well. There is no certain page that makes this bug appear, it appears randomly regardless of the page I'm visiting. Often it happens on the Firefox instance that is on the monitor I'm not working on at that moment. For example, I am browsing on my main monitor, and the 2nd monitor has a page open, the page in the 2nd monitor becomes bugged. It happens the other way too. Current Firefox version is 149.0 64 bit version, but i think it happened before the update too. I have already tried to turn hardware acceleration on and off again.

Firefox has definitely gone downhill imho. Too many very frequent updates after browser slows down to a virtual standstill. I have seriously been looking at other browsers. What's the story?

Whenever I launch a YouTube video, It starts then the whole page freezes. No links work and no menus shows up when I click my mouse. I can do nothing to get the video to unfreeze. All I ca do is close the window.

For some weeks now, the "File" menu randomly opens by itself then closes a second or two later. It seems to happen once I get focus on a page. For example, if I open a new tab then go to Google and ask a question, once the answer is returned, within a second or two the File menu drops down then closes again. I have the latest version of FF (149.0), 64-bit under Windows 10. There are a couple of settings in about:config that were suggested to be changed by ChatGPT but this hasn't made any difference.