Firefox Support Forum

Hello guys, so in the past 2-3 days i started facing Cross-Origin Request Blocked for a lot of websites lets take chatgpt for example, if i visit it i get:

Content-Security-Policy warnings 2 Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9. (Reason: CORS request did not succeed). Status code: (null). The resource from “https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9” was blocked due to MIME type (“text/plain”) mismatch (X-Content-Type-Options: nosniff).

and its getting so annoying that its blocking a lot of websites, i tried chromium it works fine and works awesomely no cors no problems. I even tried to disable the firefox protection, dns over https on/off, change my main dns upstream, installed firefox developer, compete uninstall/reinstall, cache clear from installers and from firefox it self nothing is working. I will provide firefox developer edition troubleshooting information but keep in mind it doesnt work on both firefox normal and developer

Please any help would be appreciate it.

Firefox v124.0.2-1

hi when I go to github it says Did Not Connect: Potential Security Issue whereas before it worked fine but now it doesn't :/ I have watched so many tuto on yt but no one work i have clear my data i removed my antivirus and all my extensions and went into private browsing but I still get this error.

The streaming platform Twitch seems to have an issue with both the newest version on Firefox and 122.0.0, did as advised but nothing works, I need this function for work related reasons.

Is it possible for a big tech company like Apple to release a web platform that is not compatible with Firefox? Firefox is not supported by Apple School Manager (https://school.apple.com) i.e. a web platform designed for educational institutions (PA). Is it legal? Is it possible to make a claim to EU institutions? Thank you

When I try to use youtube.com on Firefox I have problems with the page loading correctly. The sidebar menu doesn't populate leaving only a white space where all the options should be. When I click on a video a red progress bar will fill about 75% of the way and then just hang and the video will never load.

I have tried clearing my cache and cookies, deleting all data, refreshing my browser at least 5 times and ran under troubleshooting (safe) mode but the same issue persists.

This does NOT happen under Edge at all, only with Firefox.

About a month ago Firefox started giving me BAD REQUEST for URLs generated by the MLS system all of us realtors use.

This URL works fine in Safari, but not in Firefox any longer. What has happened and how/when will this be resolved? JPaul

Bad Request

Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit.

I'm having really odd behavior using Firefox (linux) with Microsoft 365 web apps (outlook, word, excel, etc). Its happening various distros too. Is there a known issue at this time with FF and 365 web apps?

   Excel - cell content deletion on moving through cells.
   Word - line content deletion on hitting carriage return.
   Mail/Cal - Webapp not displaying content on double clicking emails or calendar events.

Found a few sporadic similar reports from users on various forums, but no official note that it was a known bug. Assuming it isn't widespread - anyone here have any anecdotal reports of similar issues. Seems to only affect the linux distro versions of FF.

This renders the web app sites unusable with Firefox so I have had to use another browser for these apps. As these apps are ubiquitous with work and productivity, it's rendering Firefox as a second-choice browser unfortunately. No one really enjoys having to "pick the right browser" for work or play.

Is there any way to resolve these issues? Hoping someone has some insight.

Hello,

I was trying to watch Youtube and pulled up the page, but all that was there were grey boxes where the recommended videos should be on the home page. When trying to search, only a blank area came up. When I tried to go directly to a channel, the same happened. Loading a direct link from a video let me play the video, but everything around it was gone, no recommended, no channel, no likes, nothing.

I have tried clearing the cache and cookies. My Firefox version is up to date as of right now. I restarted the browser several times and restarted my computer.

Other solutions suggested going to about:config and changing image.webp.enabled to true, but when I search under about:config, that option is not there.

Youtube works if I open a private window and sign in. I have tried opening Firefox in troubleshooting mode and this did not solve the problem. Any help would be greatly appreciated.

Ive been using FireFox for a while and think its great but FireFox suddenly stopped working for me even though I use it everyday just fine. The search bar works but literally nothing else works. Its very annoying and I do not know what to do. Someone please help me fix it. I use windows 11 on a HP computer, I do have a lot of extensions but absolutely nothing works so I cant check. Nothing I try will work. I cant list the extensions I have because it’s completely blank and glitched. I hope it isn’t a severe problem. Please give me some advice!

updated to Version 124.0.1 (64-bit), now adblocker ultimate blocking website ( are you human? not a robot requests). There's no button to confirm.

I can get to log in screen ( Sams' club) but it goes right back to the are you human screen?, 

I can access the website if turn off Adblocker Ultimate. Adblocker appears up to date. When I disable Adblocker there is still a request, but this time a button below to press and hold which takes me to login screen. I can successfully login then. Reporting the issue which began within 5 min of the last Firefox update. I updated 3/23/2024

On some sites where the field allows you to start entering characters and it filters the drop down options, Firefox's password manager is covering up the drop down and I'm unable to select an option. If I try to use arrows or select some covered up option, it fills with a stored password and gives me an error that it is an invalid entry. How do I get the password manager to stop taking over these fields?

I am running Firefox 119.0 on Linux and am unable to stream video on many sites. I have tested a few sites, and the only site that actually works for streaming video is YouTube. The others either say 'Source Error' or just load forever.

Things I have tried:

• Accepting cookies (via site exception)

• Turned off Enhanced Tracking Protection for the site that won't stream video

• Turned off pop-up blocker

• Enabled auto-play of video and audio on the site

• Checked for updates of Firefox (but there are none available)

• Launched Firefox in Troubleshooting mode with all extensions and customizations disabled, but this makes no difference

At this point, after doing some online research and trying everything I can think of, I'm really out of ideas.

I would appreciate any suggestions or information anybody has.

Thank you

Hi all, I did search the key word Outlook but did not see a helpful reply. I used my extension to clear the cache, did not help. I even call the help desk at work, they suggested Chrome and i was able to log on. I already have to use Chrome for Netflix, i don't want to have to move to another browser. I have Mozilla VPN but it is not on all the time. Please advise. thanks, E

On https://careers.usmc-mccs.org/psc/hprd/EMPLOYEE/HRMS/c/HRS_HRAM_FL.HRS_CG_SEARCH_FL.GBL?Page=HRS_CAREERS_FL&Action=U when I log in and go to my page, Firefox will not allow me to scroll and see all of the information whereas Chrome and Edge does. I am not sure if there is a setting incorrect in Firefox or it is blocking an area from scrolling. I added a copy of the screenshots below from Edge and Firefox.

Despiote having no problems for years this morning my access to making payments online with the Bank of Scotland was blocked. They have indicated that the problem is Firefiox not aligning with their security. can you fix this as i would prefer t remain with firefox.

When I try to log out of my financial institution's web site using the Firefox browser, the "Sign Out" link is dead. (This issue began last month.) That sign-out link works as it should when using the Edge or Chrome browsers.

I've installed each offered update to the Firefox software. I always delete temporary files, cookies, histories and caches etc. after ending an internet session. Is there some way for me to troubleshoot this specific issue at my end (i.e., check settings)?

Otherwise, I'll continue signing out from that web site by closing the browser. Cheers

I use mozilla firefox as my main web browser, and youtube sometimes does sometimes doesn't load (picture below). This happens only on firefox. Every other website works fine tho.