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Choppy 4K YouTube playback

I have a very good PC (5800X3D, 7900XT, 32GB DDR4 3600), but Firefox (either the normal, canary and nightly version) can't play smoothly any 4K video (like the Borderland… (read more)

I have a very good PC (5800X3D, 7900XT, 32GB DDR4 3600), but Firefox (either the normal, canary and nightly version) can't play smoothly any 4K video (like the Borderlands trailer: https://www.youtube.com/watch?v=lU_NKNZljoQ ). 1440 and lower resolutions are fine, as are 4K videos on Chrome and Edge. FWIW, my CPU during 4K playback is barely used (1-2%), and my GPU's video codec (VCE) is used by around a third. Disabling HW accel makes things better, as it still stutters but it's (barely) passable. I already tried creating a new profile, but still it's the same.

Asked by Federico Barutto 3 months ago

Answered by zeroknight 3 months ago

  • Solved

After upgrade to Windows 11, Firefox won't open anymore.

Hi, I've upgraded to Windows 11 today and couldn't open Firefox since. Things I've already tried: Reinstall Firefox and delete all old files (Appdata & Program fi… (read more)

Hi, I've upgraded to Windows 11 today and couldn't open Firefox since. Things I've already tried:

  • Reinstall Firefox and delete all old files (Appdata & Program files)
  • sfc /scannow and DISM.exe /Online /Cleanup-image /Restorehealth
  • Windows compatibilty mode
  • Firefox Troubleshoot mode won't open either
  • ipconfig /release & /flushdns & /renew
  • netsh int ip reset & netsh winsock reset

When opening Firefox in any way, i get a white window/just the window border which immediatly closes. When trying to start troubleshoot mode, the small window has the same issue.

I also checked the crashlogs and none were generated. The Windows event-logger also has no entries.

BTW: Here is a video of whats happening: https://youtu.be/AJP4rqZFxlY

I have no idea what to do - send help please.

Asked by galotta.f 3 months ago

Answered by zeroknight 3 months ago

  • Solved

Firefox asks for master password on startup

On my computer Firefox ask for the master password every time at startup. On other computers in my family, Firefox only ask for the Master Password when accessing a site … (read more)

On my computer Firefox ask for the master password every time at startup. On other computers in my family, Firefox only ask for the Master Password when accessing a site with a password. I tried : - to disable than reenable Master Password - start in SafeMode without success. How can I solve my issue ? Thanks in advance for your help

Asked by jp.levy 3 months ago

Answered by cor-el 3 months ago

  • Solved

Instagram not accept cookies, can't log in

i think latest browser update broke instagram. I am stuck accept cookies screen, even i accept these it not disappear. I tried turn off extensions, clear site data, not h… (read more)

i think latest browser update broke instagram. I am stuck accept cookies screen, even i accept these it not disappear. I tried turn off extensions, clear site data, not helped. Works on incgronito mode only?

tried also turn off adblocker stuffs.

works on Chrome atleast fine.

Windows 11 home.

Asked by Makezu 5 months ago

Answered by zeroknight 5 months ago

  • Solved

IE Tab extension...

There used to be an extension called "IE Tab". It allowed you to right click on the link, and open the site in a tab, using Internet Explorer, for sites that didn't work … (read more)

There used to be an extension called "IE Tab". It allowed you to right click on the link, and open the site in a tab, using Internet Explorer, for sites that didn't work properly in Firefox. I was wondering if anybody knows of any similar extension that would do the same for Edge? I can't open Twitter (X) using Firefox anymore, but I can open it using Edge. I don't like Edge (obviously), but I have no choice. Thanks in advance!!!

Asked by carlrgoodwin 4 months ago

Answered by cor-el 3 months ago

not able to find JAVA PLUGIN "JAVA TM PLATFORM SE8 U341 for running digital key

Dear Sir, we are unable to get plugin JAVA TM PLATFORM SE8U341 for running digital key. i have requisite software installed in my system. Please guide. I have attached sc… (read more)

Dear Sir, we are unable to get plugin JAVA TM PLATFORM SE8U341 for running digital key. i have requisite software installed in my system. Please guide. I have attached screenshot regarding the same.

Asked by jayant kumar 2 weeks ago

Last reply by James 2 weeks ago

  • Solved

Cloudflare Verify you are human looping

I have been experiencing a problem with Cloudflare specifically on one site (character.ai) and when the verify you are human pops up. It takes me in a seemingly infinite … (read more)

I have been experiencing a problem with Cloudflare specifically on one site (character.ai) and when the verify you are human pops up. It takes me in a seemingly infinite loop. On the Cloudflare community site they say it could be because of things like adblock but even without any adblock or anything of the sort on it does the same thing. Sadly Cloudflare community doesn't support being used on Firefox. So maybe they don't support being used on Firefox in general? I have contacted the actual websites support but they don't seem to even read submitted inquiries because I never hear anything back from them except the automated message they received it. It is now preventing me from using certain things in general which as before it wasn't that big of a deal but recently they changed the site layout and still allowed you to use the old layout but the verification blocks you from using the old layout. The first one is one from a couple of weeks ago when it only effected me trying to open things in a separate tab and the second one is the newer one which prevents me from accessing the old layout. I'm not sure what to do about it since nothing I specifically could do to solve it has helped. I have opted into sharing data under troubleshooting IDK how well that'll help.

Asked by Lilynette 3 months ago

Answered by Lilynette 2 months ago

  • Solved

Missing cookies

I have an issue with Firefox 127 not accepting a session cookie that I use for user authentication. I have an ASP.NET application with a login form that includes fields f… (read more)

I have an issue with Firefox 127 not accepting a session cookie that I use for user authentication. I have an ASP.NET application with a login form that includes fields for login and password, and a submit button. When the button is clicked, an HTTPS/POST request is sent to the server. The server responds and sends back a session cookie named .Cookie.Name with the parameter httpOnly set to true.

When I check in Firefox's Developer Tools under the Network tab, I can see .Cookie.Name in the server response. However, in the Developer Tools under the Storage tab, .Cookie.Name is missing, which prevents the user from logging in. This problem does not occur in other browsers like Chrome or Edge, nor does it occur in Firefox version 126. The configurations for Firefox 126 and 127 are identical.

Could you please assist with this issue?

Asked by LukaszRoki 3 days ago

Answered by LukaszRoki 3 days ago

Firefox Not Launching

I have recently downloaded Firefox on Windows 11. When I first installed it, it worked fine, but it crashed and I couldn't open it again. When I try to open Firefox, a "T… (read more)

I have recently downloaded Firefox on Windows 11. When I first installed it, it worked fine, but it crashed and I couldn't open it again. When I try to open Firefox, a "Troubleshoot Mode" window flashes for less than a second and closes. About 8 months ago, on a different computer with Windows 10, had the exact same problem. I thought it was just because it's ancient, but it does the same thing on my well-functioning computer. I have tried the Microsoft Store Firefox and downloading from the website. I have reinstalled and restarted several times, and my computer is up to date. I do not use any 3rd-party security software. I still cannot launch a Firefox window at all. I love Firefox on mobile and I really want to use it on PC. Thanks for your help!!

Asked by vee_c 3 months ago

Last reply by zeroknight 3 months ago

History Disappeared

After Firefox did an update I opened up Firefox and ALL my history was gone. I still have my bookmarks. But I need my history for the past few weeks and months. I've trie… (read more)

After Firefox did an update I opened up Firefox and ALL my history was gone. I still have my bookmarks. But I need my history for the past few weeks and months. I've tried to search and find it through using an Index.dat analyzer. But when I've tried to use it, nothing was found. I've not shut down my computer since as I want to get this back. How do I do so?

Asked by davedc32 3 months ago

Last reply by davedc32 3 months ago

  • Solved

Graphical problems on Surface Pro X (arm64)

Using the arm64 version of Firefox on a Surface Pro X causes several graphical issues. These issues started either with a update of Firefox or drivers. This topic has al… (read more)

Using the arm64 version of Firefox on a Surface Pro X causes several graphical issues. These issues started either with a update of Firefox or drivers.

This topic has already been reported, please see here for more information and documentation: Reddit: https://www.reddit.com/r/firefox/comments/182iojx/firefox_arm64_graphical_problems_on_surface_pro_x/ Mozilla Connect: https://connect.mozilla.org/t5/discussions/firefox-arm64-graphical-problems-on-surface-pro-x/m-p/52086

What can be done to report this issue and help it getting fixed?

Asked by Felix 3 months ago

Answered by zeroknight 3 months ago

  • Solved

Roblox website Shattered.

The layout on the Roblox website, https://www.roblox.com Has appeared to break, I've seen the website on Google chrome and Microsoft Edge and it's good to go. I am not aw… (read more)

The layout on the Roblox website, https://www.roblox.com Has appeared to break, I've seen the website on Google chrome and Microsoft Edge and it's good to go. I am not aware as to how this has happened. I have disabled every Addon I have, This issue is not caused by the Addons I have installed.

CTRL + F5 has Fixed My Issue! Thank You cor-el!

Asked by aombi 4 months ago

Answered by cor-el 4 months ago

  • Solved

'Combine taskbar buttons and hide labels' set to 'Never' not working correctly in Windows 11 in conjunction with Firefox

Hi. When Windows 11 was initially released, certain substantial feature of the Windows taskbar known from before was missing. I'm talking about 'Combine taskbar buttons a… (read more)

Hi. When Windows 11 was initially released, certain substantial feature of the Windows taskbar known from before was missing. I'm talking about 'Combine taskbar buttons and hide labels' and the option to set it to 'Never' (users tend to set it this way to always see the program icon along with it's label, not just the icon). At this moment, the feature has been available in widely released build of Windows 11 for months (Microsoft returned it after rewriting the taskbar code and after many complains), but it is not working correctly in conjunction with Firefox. When I close all windows and tabs of Firefox and restart the browser, only its icon is visible on the taskbar, not the label. Only when I open one more Firefox window, it starts to work as it should. Is it a known issue? Can we expect a fix to be made soon? Thanks.

Asked by andrewz1986 4 months ago

Answered by zeroknight 4 months ago

Bottom of Page

Recently, one website (SF Chronicle) started automatically scrolling to the bottom of the page when I access an article. Occurs on no other sites nor on my other devices … (read more)

Recently, one website (SF Chronicle) started automatically scrolling to the bottom of the page when I access an article. Occurs on no other sites nor on my other devices - only an my Dell desktop running windows 11 and the most recent version of Firefox.

When I follow a link to read an article I briefly see the heading but then it immediately scrolls down to the bottom of the page and I have to manually scroll back to the top of the page to read the article.

Asked by sschoech 5 months ago

Last reply by TyDraniu 5 months ago

  • Solved

Bulk user name delete

I would like to select and delete a subset of user names and passwords in Firefox. I have a group of about 80 logins for an old account which I no longer use. I know I ca… (read more)

I would like to select and delete a subset of user names and passwords in Firefox. I have a group of about 80 logins for an old account which I no longer use. I know I can delete individual logins one at a time but doing this 80 times is a pain!

I can search for the particular account in the password list and Firefox lists them all, which is great. What I would like to do then is right click and select all followed by delete.

Is there a shortcut somewhere?

Asked by Spencer.greystrong 4 months ago

Answered by Spencer.greystrong 4 months ago

problem setting Firefox as default in Windows 11

I can not seem to set Firefox as my default browser. After I correctly setup Firefox as the default , and it shows up as default even in Firefox. Anytime I click on a li… (read more)

I can not seem to set Firefox as my default browser. After I correctly setup Firefox as the default , and it shows up as default even in Firefox. Anytime I click on a link in Outlook it brings up Microsoft Edge. If I setup DuckDuckGo as the default browser, a click on a link brings me to DuckDuckGo. One item that might be the cause of my issue, is that when I go into Apps, in my windows 11 setup, it actually shows two Firefox applications.

Thanks for any help!

Asked by tom435 4 months ago

Last reply by zeroknight 4 months ago