Firefox Support Forum

I need to re-post this question as, although it has been asked previously, that session is now closed. It only started happening recently, but I'm not sure whether to blame the latest FireFox version, 96, or Windows 10, 21H2. I also run Avast and MalwareBytes AVs.

Hi.I would like to know how i can stop this site from constantley trying to connect with my P.C.luckeley my firewall stops it but eventully they will succeed.Iplayed it a long time ago.I stopt,deleted my account but they keep attacing several times a day.I,ll be gratefull with any help\advise about this.i tryed acsessing the page sourse and i think i,ve only made it worse.

I have stated this issue once before after trying to find a solution by myself.

My query: https://support.mozilla.org/en-US/questions/1363376

Whenever I boot up my laptop, firefox starts running in the background taking up a lot of memory space and cpu utilization. I have been with ffirefox since I started using laptops which is 7-8 years back. I never thought of switching browser or finding an alternative of firefox until for some months the issue is occurring. Now I am really annoyed to open up task manager every time and close firefox which is running in the backgroud. I have seen nothing unusual in the "about:performance" tab of firefox.

Please help me to continue my journey with firefox.

Credit Union of Denver has an alert that Firefox may impede access to accounts, and it has been this way for over three weeks. When I try to login I get the notice "Security Code Mismatch." No other browser has this problem. Is anything being done to fix this well-known problem?

firefox not opening since 2022-01 Cumulative Update for Windows 11 for x64-based Systems (KB5008353). I reloaded Firefox. Google Chrome and Microsoft edge work OK. Task manager shows running but stats never change 0% CPU/0.2MB Memory

How can I change my primary email address? I'm not computer smart to find your secret language to do that. Please change my primary email address to: [email edited from public] @gmail.com Cable one has pulled the plug and disconnected my previous [email edited from public] @cableone.net address. No one can send any emails to that address anymore as nothing is there.

I hope you can please help me. Jan Kautz

I just allowed an update to my computer from Mozilla called software updater and now I can't use duckduckgo to search the web. I had to use google to get to this page for help. Let me know right away how to remove the mozilla updater from my computer and get back to the firefox browser that works. This is interfering with my web searches and banking. This is extremely urgent.

I use Kaltura to record lectures and post them to my course at the U of Utah on Canvas. This semester, Firefox will not allow me to open "my media" where the Kaltura recordings are posted on Canvas. I get the following message: It seems your browser is blocking 3rd party session cookies which are required for the Kaltura application. To resolve this issue, please update your settings to allow 3rd party cookies.

I copied the Kaltura web address 670542.kaf.kaltura.com that I can see in Chrome and pasted it into a Chrome browser and it goes to my recordings in Canvas when I use Chrome. The same site doesn't work in Firefox. How do I unblock Kaltura third party sessions? Thank you.

Bob McKnight U of Utah Instructor

I have searched for this problem, and only come across outdated information about Youtube's intentional changes to slowdown Edge and Firefox in 2019. This is not that.

When I load a new youtube video, the video will buffer as normal, and then buffering stops. Then there is a delay of about 10 seconds. You can see from my screenshot that the buffer is filled just fine, and playback begins about 10 seconds later. This also happens if I skip ahead/back or to any position in the video. This firefox install is on a new install of Windows 11, with a new xps 13. The previous xps 13 with windows 11 didn't have this problem, and I don't have this problem on my desktop setup with windows 10.

I use a few addons: decentraleyes, ublock, duckduckgo and I have privacy protections set to strict. I have tried a few troubleshooting steps and the problem persists. Things I have tried:

• safe-mode
• fresh install
• installed additional codecs
• used user-agent workarounds to show as a chromium based browser
• turned off hardware acceleration

The problem doesn't happen on chrome, but it does happen on Edge, which is strange. Because of this, I'm wondering if there is something going on with codecs. In the firefox screenshot posted, the codec used is vp09, same with Edge. But in Chrome the codec is av01.

Hope someone can help.

When I use full screen for some websites, it darkens after about 2 - 5 seconds and my cursor also becomes harder to move. This only started to happen recently.

It is not my computer settings, I've tested this in Safari and it works normally. This makes videos unwatchable. It is like a dark screen suddenly appears over the video and only comes off if i move the cursor. It happens with netflix and prime but not youtube, udemy.

Hi Team,

After updating to Firefox version 96.0, we are unable to login to our application, after pressing login button our login page is getting refreshed. From warnings it looks like a Cookies issue. As 96 version has SameSite:Lax as default but we are setting SameSite:None; secure; but it is not working.

Kindly help us.

Thanks & Regards

This is going to be long sorry. A lot has transpired

My son was using 78.15esr. I upgraded it to 91.3esr. After the upgrade the browser worked; tabs loaded, surfing was fine, could go into settings and about:config was fine.

He went to watch something on Netflix. Netflix complained his browser was not supported and he needed to upgrade to the latest version - which at the time was 91.3esr.

In frustration he installed Chrome. When he tried to run it he was told software restrictions were in place. I had not set any restrictions, and I checked secpol.msc and there were definitely no path rules defined. If restrictions can be set in group policy I had not set them because I am unaware of them.

So he installed Microsoft Edge, which installed VC runtime for 2013 and 2015-2019 for both x64 and x86.

At that point Firefox no longer loads tabs at all. About:<anything> doesn't work. Settings doesn't work. You can't go to safe mode (more on that later), and when closing the browser two processes remain taking about 60 seconds to end.

I did have the group policy templates for Firefox installed. When I upgraded to FF 91 I installed the latest templates.

A couple of times when I started FF it complained about vcruntime140 was missing. But just running FF again worked without doing anything else.

So I reverted to 78.15; I uninstalled v91.3esr. I deleted his profiles.ini and profiles folder and then copied them back from a back up. I removed any registry settings, and copied back the v78 ADML files. I then installed v78.15esr with internet disconnected. Did not run FF after install. Went into group policy editor and turned off telemetry and auto updates then re-enabled internet

Run FF and same issue. tabs not loading. Pages not loading. I can click on a menu and I can type into navbar and search bar but there is no response. I checked internet was working.

I deleted the %LOCALAPPDATA% cache folders. I flushed the DNS cache. None of this worked.

So I uninstalled FF again, deleted the profile folders and ini. Disconnected from Internet. Deleted any registry settings, and removed the group policy templates. Then installed 78.15 from scratch and let it create a new profile.

Same darn problem. It seems to me that installing chrome and/or edge has done something nasty, but I have no idea what. I say that because before he did that he could surf the web, but Netflix just said his browser ver was outdated.

I tried contacting netflix on chat but they were worse than useless.

So I uninstalled again and removed everything. Connected the internet and installed FF again and let it update automatically. Same problem.

I've left him with edge but I need to fix FF.

I even uninstalled the VCLibs, Chrome and Edge. These did not fix the problem.

I tried safe mode but when firefox restarts there are two processes that take 60+ seconds to end so FF sits there saying "restarting...". When those processes finally end Firefox does not restart.

Checked for viruses; nothing found. Rebooted PC several times.

So at this point in time; FF will run but will not load the 3 tabs; Facebook, Netflix and youtube. They stay blank. Settings is not accessable, nor is addon's or logins and passwords. Typing anything on the search bar does nothing Typing anything in the address bar does noting Trying about:config or about:profile or any other about's does nothing. When closing FF two processes take 60+ seconds to end.

If I go back to him and tell him I need to reinstall Windows he will go absolutely nuts.

What also worries me is that Netflix said that the most recent esr browser version was not supported and that he should update to a later version.

And what is even more troubling is I updated his girlfriends PC at the same time and hers works perfectly. This scares the hell out of me because I then expect responses like "Your sons problem is not a firefox problem".

OK, this is a little funny. It used to be, if I wanted to open a website, I just clicked on the URL, and Firefox would open with it. Now (and I'm using 95.0.2 on iMac Big Sur), when I click on the the URL NOTHING HAPPENS if a Firefox window isn't already open. That is, you have to have a Firefox window already open in order for the website to appear. For example, in the Bookmark library, if a Firefox window isn't already open, clicking on a website there won't open it. You need to right click it and select OPEN. Now, Firefox is selected already as the default browser for the system.

How do I fix this? I mean, how do I get it back the way it used to be?

Hi Mozilla Community,

As of a couple of days ago, I've had trouble with my Firefox Extensions. The most apparent one being ads appearing on the sites I browse (I have the Adblock extension installed and active). The extension that reveals the "dislike" ratio on Youtube only works if I disable and then enable the extension, for each video I watch. My entire extensions toolbar seems faulty as well.

I've attached images to illustrate: - Rakuten just appears as a blank box upon clicking it - Video downloader extensions just appear as a white line (doesn't open at all) - Bitwarden (password manager) says "not available in private mode", even though I'm not using a private window

Any help would be greatly appreciated. Thanks, Matt

Firefox tabs crash repeatedly for a particular email website that I am using. Specifically, the tab crashes when I click on an link to open an email and see the email contents. The tab will not crash every single time, just occasionally (i.e. sometimes I am able to read an email without the tab crashing, other times not). I do not think that the timing of the crashing has anything to do with the email contents (e.g. length, format). I also do not think that the tab crashing issue is happening for any other websites. The crashing started recently, sometime late December.

I installed the latest version of Firefox, and I cleared the web cache, but nothing has changed.

Any suggestions?

I have been unable to figure out how I've managed to make my addons no work properly.

I've tried running them in debug mode, but I'm not particularly adept in debugging addons.

I've reset Firefox back to default a few times, addons seem okay, and then as soon as my Firefox account syncs and installs my installed addons they go back to wonky.

I can't seem to attach images RN, Firefox (Nightly) crashes every time I click on the button.

The behavior can be described as the addons when clicked have a blank page as their contents, and some addons (Like Dark Reader) just have like a sliver of a drop down with no contents.

If you'd like me to grab some debug data from wherever just let me know.

Can someone help me fix recent frequent crashes ? This is just yesterday. I tried troubleshooting mode and it didn't happen there, although I didnt give it a long trial. I deleted all extensions, and I reset Firefox. Any ideas?

bp-78bbf7fb-3f18-46e1-94de-d905c0211101 10/31/21, 9:41 PM View bp-5cb5b831-449e-4322-9a9e-710180211031 10/31/21, 2:25 PM View bp-3ebfce66-105b-4e4b-83ec-7c8ff0211031 10/31/21, 2:25 PM View bp-8bdc92ef-03bf-49ad-945d-5afe50211031 10/31/21, 2:25 PM View bp-45918706-804f-4603-9671-97c4a0211031 10/31/21, 2:25 PM View bp-09f0ab0d-e132-4ada-bb22-7dd640211031 10/31/21, 2:25 PM View bp-8cc2a647-4aac-4b06-8747-a181f0211031 10/31/21, 2:25 PM View bp-07df9cae-d45a-4ce2-944c-c123e0211031 10/31/21, 2:25 PM View bp-9cca543f-1c82-4fe9-979b-56a5f0211031 10/31/21, 2:25 PM View bp-0b0f8e3f-6592-4ea4-9d23-179040211031 10/31/21, 2:25 PM View bp-1175d7ce-ab80-4b6e-8dad-90cc50211031 10/31/21, 2:25 PM View bp-c5f88f0d-0419-44da-b058-fc7580211031 10/31/21, 2:24 PM View bp-73f726b5-cc90-474e-b7ac-e44df0211031 10/31/21, 12:20 AM View bp-deaea811-9e7a-409c-9eda-aa9600211030 10/30/21, 9:51 AM View bp-d045b5e5-b53d-43a7-8e06-1592c0201127

I moved my Firefox installation to a new machine. After creating a new profile and moving all my old files Firefox has opened with all of my old info and is operating properly.

But when I tried to change the location of the cache file to the correct drive on my new machine the about:config file does not save the new entry. When Firefox is closed and re-opened the new entry has been reset to the old location.

I've tried deleting the browser.cache.disk.parent_directory entry in about:config but when the program is re-opened the entry returns with the old directory shown.

Any advise would be appreciated.

Hi, Happy New Year!

Finally I took a deep breath and hoping for no major surprises and bugs, I finally updated Firefox to the latest version.

I have a few questions:

1. As advised, every month I backed up info in the profile, following https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles Is there an up-to-date version of these instructions as the prior ones no longer work (menus were changed, Troubleshooting works differently, etc.).

2. Does the "Allow for session" option for cookies work and if so, what does it do?

3. Is there a way to change the way the TABs look now (washed out, white, very hard to see and differentiate, hard to see which one is the one I am looking at). I am wondering what is the perceived benefit of this change. In the old version I had, the tabs very clearly delineated and easy to see.

4. Where can I find a listing of the enhancements and major changes of the versions released since mid year 2021, from an end user perspective?

Thanks.