Diễn đàn hỗ trợ Firefox

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.

on some websites it says -1 tells Firefox to automatically determine the size of the cache based on your physical disk and setting it to 0 would effectively disable any disk cache entrys.

so are this informations true and if not, how do i still let firefox automatically determine the size of the cache based on my physical disk?

Hello, On firefox 121, I'm able to launch URIs with arguments just fine. However on firefox 122, this isn't the case, and it does not understand the URI at all. Same URI btw.

Today May 1, I noticed that any website that shows a recaptcha checkbox, including the google recaptcha demo (https://www.google.com/recaptcha/api2/demo) only shows an infinite spinner in firefox v125.0.3. I've tried the same sites in chrome and edge and the recaptcha works fine. In FF, I have cleared my cache, disabled tracking protection, disabled anti-virus and tried troubleshooting mode - still get the infinite spinner. Last week, I had no problems with recaptcha.

pdf files fail to download in Firefox, but not other browsers. In particular these sites:

https://heinonline-org.ezproxy.socialaw.com/ https://1.next.westlaw.com/ https://www.medicare.gov/my/eMSN https://fc7.fastcase.com https://www.mlb.com/

However, I can download from non-password protected sites like:

https://www.irs.gov/ https://www.ssa.gov/ https://www.sec.state.ma.us/

Downloads work in other browsers. I've checked various items in the settings and none of them help.

I like Firefox, but if it won't, I will go elsewhere.

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.

I can't get Amazon back as a search option Bing is one of the search options selected in search settings, doesn't appear.

If I install an older version will it be ok. Why do they keep installing new updates which cause issues with the one I am using. I installed Opera and will give it a try. Firefox keeps changing things that work.'bold text'

I am trying to migrate from a very old version of Firefox (v. 55) to the current one, but there is an app that is more helpful to me that all the other features combined. That is the "Tab Grouping" app that will not run in any version of FF higher than v. 55.

In my work, which often includes a tremendous amount of research, I need to be able to quickly go from one group of tabs to another. If I had to open all these sites manually, that would take the better part of the day and frankly I don't have near the mental capacity to remember the tremendous number of tabs. I have had a couple replies (Thanks!) to this question sometime back, but unfortunately none were even close in performance.

So, can anyone direct me to an app that will allow very quick movement from different sets of windows/tab groups (please see screen shots below)? Is there anyway that I can get this app to work in Legacy mode? I have several other old apps that work perfectly well in this mode.

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?

Hi, As of 2 days ago I am unable to load the above site in Firefox. I have a Windows 11 PC, a Linux Mint PC and an Android phone. It won't load on any of them but works fine in Chrome. I have cleared the cache and site data. Any assistance would be appreciated.

hey, on websites like tumblr, hyperbeam, and other sites with video embeds or streaming, i keep having problems with the videos stuttering in one place and i usually have to refresh for it to fix. i don't have any extensions that interact with videos other than i guess ublock, and it only happens on sites where i do NOT get ads with videos. here's a gif of the glitch:

https://gyazo.com/c1b29f33e9ef1275e5e76ef95e186af5

it's REALLY annoying, is there any known fix for this? firefox Version 121.0 (64-bit)

We have an intranet site behind an Active Directory Federation Services (AD FS) - after updating the SSL certificate, the website will no longer allow Firefox clients to log in.

They will be prompted to sign in (with a default sign in prompt, not even the website login prompt), even if you enter the correct user/password it will continue to prompt you. The new cert works with Edge, Safari, and Chrome - I've enabled the following settings in about:Config network.automatic-ntlm-auth.trusted-uris, network.negotiate-auth.delegation-uris, network.negotiate-auth.trusted-uris, and set signon.autologin.proxy to be true - but the issue still persists.

Has anyone seen this/been able to figure this out? I've seen a few other posts, but no resolutions. Does Firefox not support Certificate Signature Algorithm SHA-384 With RSA Encryption? This is the only difference I can see between the 2 certificates; the original is SHA-256 With RSA Encryption.

Thank you!

The most recent update, has caused my firefox to not work properly. Firstly i noticed that it reset all my extensions and themes and now i have noticed that it has affected some sites i was storing data on, for example, i use a site which keeps a track of all the camos i have achieved for Call of Duty MW3. This has now been reset. These can all be redone, but it is something i shouldn't have to do, with an update, as it has never happened before with a firefox update. The way it has been going, i am sure i will find more errors with firefox. Hopefully something can be done, maybe not in this instance but in future "Improvements", as it is not a good user experience!

Trojan:HTML/Phish!pz file: \Device\HarddiskVolumeShadowCopy15\Users\Dean\AppData\Local\Mozilla\Firefox\Profiles\2lamkcbc.default-release\cache2\entries\007C6A02D270A6BD3D63FB53453745ADFB1CD69A

So this "Your browser is managed by your organization" appeared out of no where. How to remove it? I've tried: Removing the registry key in the certificates Reinstalling the browser

Despite reading almost 100 questions about this exact issue asked for years, there still seems to be no answer, and no fix to get this function to work properly.

Checking the box should completely remove the drop box for location, and the entire point is that it should ask you where to save every file,instead of defaulting.

3 tabs open, left firefox idle on pc and walked away for an hour. Came back, system barely responsive, managed to grab a screenshot. This happens every single day. If I leave firefox idle, or in background for any amount of time, it eats up all the ram and the system grinds to a halt and crashes. Can't get logs, or use profiler. This happens every single day, multiple times per day and only when firefox is in background or pc is idle. I don't use more than 3-4 tabs, this happens on random websites, sometimes even when no websites are open. I can literally open firefox with no tabs and let it sit idle and same thing happens.

Hello all. I'd like to restore the backspace button function but the previously workable solution — resetting browser. backspace_action to 0 — is not working for me. Any hints as to why that might be the case?