Firefox supportforum

Hi,

I've been encountering a strange issue where colors (especially whites) in the video player are super washed out. This only happens when HDR is turned on in windows, and only happens in my Firefox Developer Edition installation (normal firefox works fine). It also doesn't show up in any windows screenshots - the colors revert to normal when I'm in the screenshot GUI. I've attached photos below of a youtube video, the left is firefox DE and right is normal firefox, both in and out of the screenshot GUI so you can see the difference.

I'm on Windows 11, and I'm not sure what caused the issue. I've tried both refreshing and reinstalling firefox DE to no avail. Pretty stumped on this one, and would appreciate any help!

mackiewizard mackiewizard Making moves

‎10-08-2022 07:40 AM

I have been having an issue for a week or more and no updates from the browser seems to fix that. The error reads: Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit. This is occuring with a request to RBC banking. The same appears to be true but witrh different language for a request with Desjardins Insurance portal.The second link printed in red is the result after I cleared all cookies from Desjardins site. I can access many other pages within the two sites. RBC I am logged in (In black). Desjardins I am not yet as a user when these errors come up

Hello,

Ever since upgrading to Firefox 107.0, I'm denied access to select website, some of which are corporate websites such as Nokia and others. The latest occurrence had the following reference no#:

Access Denied You don't have permission to access "http://www.nokia.com/phones/support" on this server.

Reference #18.9cf7df17.1669164130.8b3c1e51

If I employ other browsers like Safari or Brave, I'm able to successfully access both this page and others which are restricted on Firefox. So, what might be causing this to happen? Firefox is my preferred browser, therefore I'd like to find a fix. Any help would be greatly appreciated!

Using my PC, I am clicking on this URL: https://schoolgateway.westminster.org.uk/?page_id=7. Firefox responds with "The requested service is temporarily unavailable. It is either overloaded or under maintenance. Please try later." Every time. Using Firefox for Android on my phone: same result. I have tried Troubleshoot Mode on my PC: same result. And yet Safari, Chrome, Edge and Brave all load the web page correctly with no error message.

What am I doing wrong?

I'm not sure what happened in the latest update, but it broke the Canvas website that I use regularly for classes and homework. I've checked and confirmed that Canvas still works normally on Microsoft edge.

Extensions shouldn't affect the website because Canvas was working normally until the recent Firefox update.

Anyone know how to solve this problem?

I am getting Access Denied on many web sites that i have used frequently. For example, for the site https://www.apartments.com/ I get this message:

Access Denied You don't have permission to access "http://www.apartments.com/" on this server.

Reference #18.ca68dc17.1653685076.c42d150

I am using Firefox Browser 100.0.2

Help!

• The attached image shows Firefox (on the right) not displaying Helvetica correctly. It appears jagged and not pleasant to look at. The browser on the left is Edge and all Chromium based web browsers seem to render it as it should.
• I've tried to look into (about:preferences#general) and the option that says (Allow pages to choose their own fonts, instead of your selections above) is ticked.
• I've also tried reinstalling the browser, clearing the website cache and also, removing my profile from it. None of these seemed to fix the issue.
• It's been persistent for quite some time now, however I didn't really find any articles regarding this issue.

  Any help would be greatly appreciated!

I have had 2 sites produce this error box in place of the target Web Site (See Picture). I have read previous topics about this and have followed the instructions with no positive results. FYI, clearing the web site's cookies, clearing Cache and disabling Hardware acceleration.

The first was https://www.walmart.com. After leaving a "Feedback" 2 weeks ago it appears as if they were able to fix the problem. However, the site is not as important as my Medicare PPO provider. I tried loading previous versions of Firefox, but that did not help.

In both instances the LOL "support" people's response was to try a different Browser. So, I reluctantly loaded Google Chrome and it worked perfectly. From my perspective, this eliminates everything to do with my machine setup.

Below is the sign-on URL (not unique to me). Please note that this 668 character URL has not changed for over a year. It is just Aetna's adoption of the Imperva Security Firewall. Both my Winders 8.1 and Winders 10 machines produce the identical results.

https://www.aetna.com/AccountManagerV3/v/login?identityTransaction=VIhzS3Xx1ogw4rzQY5lXUvDYBtXFZiXttegdT9ffK%2FOZ8oTHnKbryvfgfagvpO0aknHiEN2hnELOIkjfz3eJNeBfKQ%2FUDo0hSJHhjsdZdJw0rkVj%2BFjAVYypzW5kRH%2FzzOlbxrN6KKpjWvagusMp%2BzwgQqvg5xvUkwLCs3MlD%2BkzHOTVKlu4GYxJgmzr3Y9NUdFGUI9PHurN4QxSyvXxNjJ4jSSL4NHuctvtQyV1fUh%2FOqpHJglcALQuuNeyQ1QncyKPZJYf5rj1DLC2zrxKX0VgVWQZfSbw5Pouiv%2FWfwWxArHPHcV5cXr3kI2j33C8dUl0Jdup0nvdVs%2Bxigzp%2BmMQUaHxaw3B7tiJ7eokyNMgvG4V5SPw9FL5j3mhwBAirx%2BmX7Yj0qDZZNRl8z1WcvHen8HwsDijtH4Sg%2FNdsuzhXIw8snHF6hUd4n3MbJerO8nRUdzKR%2BhNCNq%2FjeuQWmT1cyQ3QtmIXcL0ab42vk6or1SX5wG%2BIMF%2Bk6ZJQw8h&appname=NAV&branding=&skin=&language=&channel=web

Lately in Google Drive I get this error when I select one image or a file: Impossible load details. Retry. I have Firefox 108 version, on Edge and Chrome all is OK. Also the troubleshoot mode doesn't resolve the problem.

I'm trying to use Microsoft Teams in Firefox because the native app for Linux is abandoned and crashes, and at first sight the app is blocking Firefox on purpose. Buttons to make calls are disabled, stating that audio and video are not supported in my browser, but everything works normally if join to existing calls using e.g. links.

Is it possible to trick Teams to think I'm using Chrome? I found the "User-Agent Switcher and Manager" add-on, but I can't figure out how to possibly use it.

When a playlist is loaded and played on YouTube, the next video in the playlist should automatically start playing once the current video reaches its end. This feature is commonly known as autoplay. However, I couldn't get it to work consistently. When the current video is finished, next video is loaded normally but where it should automatically play it doesn't.

I have tried below to address this issue:

• Autoplay next video works in safe mode.
• "allow audio and video" in autoplay permissions in https://support.mozilla.org/en-US/kb/block-autoplay doesn't help
• I have also set media.block-autoplay-until-in-foreground preference to false in about:config but didn't help
• I have tried uninstalling all extensions and it didn't help
• Tried logging out of youtube, but this didn't seem to help with the issue.
• Tried "Clear startup cache" in "more troubleshooting information" menu, didn't help
• Tried "Refresh Firefox" which didn't help

Thank you.

This site, Costco Instacart, worked perfectly with Firefox as recently as April 15, 2023 but today fails (see attached image): https://sameday.costco.com/store/costco/storefront?zipcode=11021

Cloudflare believes it is protecting itself from online attacks when accessed by Firefox. The same site worked perfectly today, on the same computer, using Google Chrome.

Cloudflare is a major CDN and many important commercial sites, like Costco Instacart, have their content delivered by Cloudflare so this is a major issue with Firefox. For the moment there is a work-around, use Chrome instead, but it would be better to have Firefox address issues with Cloudflare.

Hello,

this problem started happening around 3 or 4 days ago.

Usually, at the end of the day or before I close Firefox, I "delete browsing history" BUT only the "today" history. I know it's a weird habit (lol), but at least it logs me out of all recent browsing while keeping my sessions with older websites active (typically these older websites include stuff that I use frequently like Outlook, Google/Youtube, Twitter & other social media, Spotify, and a few other sites).

The other reason I do this is that I like my "recent history" to be ordered the way I like, so I can use it kind of like a "bookmark list".

The problem: Since about 4 days ago, each time I "delete history", ALL my accounts are signed out. Note that I don't have the option to delete cookies upon closing checked, and whenever I close Firefox without deleting history the sessions appear to be active.

I think 3 or 4 days ago there was a Firefox update? I remember at the time I was shown the extra tab with the release notes, but I didn't pay much attention. However when I noticed the issue, which was the day after, I assumed it was a new feature of the update that caused all these websites not to recognise my browser and thus ask me to log in again.

So just before going to bed, I tried 1) clearing my history for the day as I usually do, except 2) instead of closing directly after, I would go to the sites I want to remain logged in (in this case I just did Outlook, Youtube, Twitter, Facebook, Tiktok and Spotify), log into my accounts, and then close the browser.

So the following day, it worked "as usual"... almost... that is because when I deleted my history of the day, it logged me out of everything again. But in the "recent history" list, it showed the updated list (with the websites I re-logged into the day before).

So I can't guess what is happening, other that something is messing with my cookies each time I delete history. I even went to check manually to see if I still had the session cookies stored in Firefox and it appears to be the case.

Yesterday I also tried logging into a Google, waiting a few hours, and only deleting the history of the past hour, but the same thing happens, I instantly get logged out.

Additional info: when I "delete history" I only check the first five options (those under history) and not the lower two (under data).

Thanks for your help, and sorry for my English !

Since yesterday (Sep 26 2023), Twitch.tv has been having multiple issues related to basic functionality of the website, and this has happened before but I did not report it because I was able to fix it. I can not purchase or use bits despite Twitch having a stored payment method on file that I have confirmed has sufficient funds, I can not subscribe or gift subscriptions despite Twitch having that same sufficiently funded payment method on file, I can not redeem or earn channel points, I can not send or receive Twitch Whispers (a form of DM), I can not follow or unfollow channels, and I am convinced that if I was to log out, I would not be able to log back in. I can chat in stream chat, and I can watch streams, that's all I can do. But I enjoy using the other features that are currently blocked, I am over 18, and I am the only person that uses this computer, so there should be no parental controls problems either. Yesterday, I restarted my browser, which did NOT alert me that it had updated, and all of this functionality was broken. Roughly 6 months ago I was having the exact same issues, but I was able to fix it by disabling many of the anti-tracking protections on my browser (had to disable them universally except for blocking cryptominers, not just with the shield icon). However, now, even with those settings unchanged, roughly 75% of the features of the website Twitch.tv are nonfunctional. I have included a cropped screenshot of me attempting to redeem something using channel points, the purple box is the button, and the spinner icon stays there for over a minute with nothing happening, which is not how that is supposed to work.

I enjoy watching streams and interacting with people on Twitch.tv, and I wish to continue doing so in the way I am accustomed to. However, it would appear that Firefox has other plans. If this continues, I will be forced to switch to a less secure browser for specifically that site, which is an idea I do not look forward to.

I've been watching and following along with a Unreal Engine 4 Course on Youtube for some time now (mentioning in case the resource usage has something to do with it), and in the past couple days I've noticed a pretty serious and annoying bug. When I pause the video, tab (Cmd + Tab on MacOS) into Unreal Engine, do some things, then tab back and resume the video, it will play for one frame and then stop and buffer, but the audio will continue playing. The only way to get the video to resume is to skip forward/backward in the video (either with the arrow keys or the progress bar). I've also tried Troubleshooting/Safe mode and the issue still persits.

So, for awhile now when I go to some sites, the screen suddenly starts flashing, then it jitters and turns some light color (like a light green; not blue screen, not black). If I guess where the "X" is to shut down the tab that has the video, I can end this. Often, like on youtube, I find the problem is some ad video that was playing. The rest of the site is ok. But not always.

One site I wrote down a few days where it happened: https://www.nbcsports.com/philadelphia/eagles/eagles-face-giants-2022-playoff-opener?cid=sm_npd_rsn_phi_fb_mn&fbclid=IwAR3rGUEa0W8fElrzCWANSIUpti9VKlbn0iHyvcFsviajYExo5tcRSyWBJXA

scroll down to video and everything blinks, becomes unuseable

It happens in lots of places, though. It is not per se a YouTube problem or just a problem at NBCSports. I shell out to MS Edge, and it seems to handle everything fine, so I'm assuming at this point it is a browser issue.

One last point: after this happen the screen display is degraded even after I manage to shut down the offending tab or video. It takes a Log off/log back in or reboot to fix everything. The degradation takes the form of making the screen look a bit like a pointilist painting, although that's an exaggeration.

FF 109.0.1 64 bit Windows 11 NVidia GeFORCE RTX 3060 running studio driver 526.98 (I have switched periodically from / to their gaming driver, which doesn't seem to matter)

Any help, appreciated.

Hi all, is expired cookies management changed lately? Authentication doesn't work anymore in following use case. Question is all about FF for windows, while usually I'm on FF Android, Edge and Chrome for Windows and all these browsers are working correctly.

My working web app (static blazor wasm standalone) is interactively authenticating in Azure AD B2C using Microsoft.Authentication.WebAssembly.Msal library (like MSAL.js), API is an Azure Function protected through AAD B2C.

Login request successfully invokes Signin/Signup B2C flow with popup to myb2ctenant.b2clogin.com but breaks navigating to auth protected pages or backend apis.

From DevTools I see that every request to following b2c endpoints sets an expired cookie (expired 10 years before, year is now 2012):

When user clicks login: GET /myb2ctenant.onmicrosoft.com/b2c_1_sinsup/v2.0/.well-known/openid-configuration

Returning from login confirmation: GET /myb2ctenant.onmicrosoft.com/B2C_1_SInSUp/api/CombinedSigninAndSignup/confirmed?rememberMe=false&csrf_token=xxx

for example: Set-Cookie: x-ms-cpim-trans=; domain=myb2ctenant.b2clogin.com; expires=Fri, 14-Sep-2012 12:46:46 GMT; path=/; SameSite=None; secure; HttpOnly

FF registers this warning in console:

Cookie “x-ms-cpim-trans” has been rejected because it is already expired

Following when MSAL execute a request to /myb2ctenant.onmicrosoft.com/b2c_1_sinsup/oauth2/v2.0/authorize?xxxx

Response always contains:

Location: https://blazorapp.xx.web.core.windows.net/authentication/login-callback#error= interaction_required&error_description=AADB2C90077%3a+User+does+not+have+an+existing+session+and+request+prompt+parameter+has+a+value+of+%27None%27.%0d%0a

All other browsers are working... Thanks in advance for any help

Hello guys,

I just got a new M2 SSD and I just decided to reinstall Windows and everything on it. However, when I installed Firefox I started getting this exact error message on all twitch streams: "Your browser encountered an error while decoding the video. (Error #3000):. Keep in mind I have tried most if not every "fix" I've found. I've disabled the hardware acceleration, cleared cookies and cache, I've disabled the extensions, I've tried Incognito mode, I do not have a third-party anti-virus and I do not have a VPN. This works on all other browsers and it used to work on Firefox before I wiped my PC, so that I can install Windows again. I really do not want to use a different browser, I love everything about Firefox right now.

Any suggestions will do, thank you very much.

Expected: Firefox displaying all known Unicode characters.

Result: Many characters missing.

Failure page as an example: https://en.wikipedia.org/wiki/Religious_and_political_symbols_in_Unicode

Description: I tried going through a Unicode list Unicode list and the extensive set of characters displayed correctly. However, when reaching further into character sets as shown in the failure page page, many are missing which are not new.

• "Repair encoding. . ." button was not active.
• An encoding switch extension was not able to resolve the issue.
• Troubleshooting mode did not show changes.
• Switched fronts available such as Noto Sans and Roboto Sans without success. Possibly a font failure?

media like .gif files and .mp4 files are used very frequently in the Discord servers I'm in and for some reason whenever those specific file types are used won't load/function. I noticed that while the DRM icon was present in the discord tab, that those two file types worked just fine; but I have no clue how to set it to always turn on for specific sites.