Firefox Community Forum

For about two months, video quality has been persistently low for me on Youtube. Quality options are limited to 360p and I am unable to change it. Additionally, I am unable to play video on other platforms such as Vimeo, Pinterest and other streaming sites. Sites return errors such as 'Player is unable to play video at this time' or error code 102630. I have refreshed my cache and reinstalled Firefox and neither have resolved the issue. Notably, this issue does not occur on other browsers such as Chrome or Microsoft Edge. As far as I know my drivers are up to date and the Windows Media Feature Pack is installed, although it shouldn't be an issue seeing as sites work on other browsers. The issue also persists in troubleshooting mode. I've gone through the console and included images of some interesting errors that might be of use, although I don't have the technical knowledge to know what they mean. Please inform me if there is any other information I can provide that would help. Thank you!

Since 128.0 was installed outlook.office.com/mail has stopped working. (Windows 11)

My mail account has numerous shared groups. However these now fail to load with a messgae "Cannot load folders for "xxxxxxxxx" Decoding failed.

Additionally, while I can see new mails in the list (under focused and Other), the previews are all blank.

I do not get this error in Edge or Chrome in Windows.

Until today it worked fine. But now whenever I try to login to Xfinity I get You don't have permission to access "http://login.xfinity.com/login" on this server. It works fine on Chrome and Edge. I have disabled my add-ons. I have cleared cache, cookies, etc. I have rebooted. I have turned off firewall. I have checked my DNS. I have changed the DNS protection to OFF in Firefox. I have checked my proxy setting (I have no proxy). I have reinstalled Firefox. Etc. Etc. Nothing works. The fact that it works on Chrome and Edge, that it has worked everyday until today gets me confused. I also tried using my mobile phone as a hot spot to make sure it wasn't related to my Internet connection or IP address. Anyone have any ideas?

Helo team, I think I hit some key and firefox settings changed. I see squiggly characters in menu options, bookmarks etc.. Web pages load all right. I tried uninstalling/reinstalling. It did not help. Please see attached screenshots. I use a Mac M1 mini.

I use Mozilla Firefox for work. Part of my work requires I use the GlobalProtect VPN client. When I log on to the VPN, everything appears to be fine. The problem arises when I log out of the VPN client, such as needing to switch to a different VPN.

When I log out of the VPN client, Mozilla slows down massively. I get the following errors when trying to access websites.

PR_END_OF_FILE Timeout

I thought it was a DNS issue, but the change I made previously did not prove to be a reliable fix, and I do not actually know the root cause of what is happening. Firefox returns to normal ONLY after a full computer restart. At this point I am considering switching browsers as, despite Firefox's functionality, it is starting to interfere with my work.

I have used other VPNs, such as Fortigate VPN, and not encountered anything like this.

Any advice or guidance would be appreciated.

Hi all, my website isn't opening when using firefox. But when I try to open it in chrome it opens smoothly. I'm a user of firefox and this issue is creating a mess for me. Any help welcome. Site Link: [=]

Twitch, Youtube Live, Netflix, Kick... it seems any live streaming platform cannot play. I am running Linux Mint 21.3, Kernel 5.15.0. They work on a different browsers, they all also work on Firefox my laptop, which is also on the same OS and Kernel.

I have tried everything: installed ffmpeg, installed unrestricted ubuntu codecs, refreshed firefox (twice), uninstalled/reinstalled firefox, ive tried without extensions, yet nothing.

Cant for the life of me figure it out, im not sure if its my PC or Firefox on this machine.

Can't pinpoint the date, but a while back Youtube won't play videos anymore. It just shows a black screen in the player. Not even the player UI (pause button, volume, settings menu) shows. Just a black portion of the screen. Now when I went in to get a screenshot, it doesn't even show the black box.

Hello. Recently I've noticed video quality has been reduced on amazon prime video. I get a message saying my hardware doesn't meet HDCP requirements.

I've already tried playing the same video on edge, and the quality selector was fine there, full HD video.

Thank you in advance

On several site there's a greyed out box top right, which disables anything it covers, can't be got rid of, and makes using Firefox for these sites impossible. Help, please?? Thank you! (I'm having to use Chrome...)

Every time I try to change the resolution of YouTube videos, it only provides 360p as an option, with a "Missing options?" message that redirects me to Google help page that just says my browser might be out of date (I'm on most recent Firefox and Windows 10 updates). The quality is still stuck in 360p when I reboot Firefox in Troubleshooting mode, and there are no quality issues when I use a browser like Edge. What should I be checking to resolve the issue?

Hello! I have been having certain visual bugs occurring within the Firefox browser, I do not know what's causing them but am hoping someone can help! Firefox keeps on adding or changing translucent white boxes to multiple websites, I have some from YouTube attached below but I've had this issue on multiple websites. I'm using an ARM architecture Surface Pro X and when I reached out to Microsoft they couldn't help me since the error was just in Firefox.

I was reading https://embracethered.com/blog/posts/2024/m365-copilot-prompt-injection-tool-invocation-and-data-exfil-using-ascii-smuggling/ and hovered over the hxxtp://wuzzi[.]net link.

I noticed that the status bar on firefox shows the same text as the on-page text. It doesn't render the unicode url in full. I tried finding a bug describing this, but couldn't find one.

Sample URL:

https://wuzzi.net

I used to be able to press Enter in the empty Firefox search bar to bring up the (DuckDuckGo) search page and enter my search from there. Don't ask me why I like doing that, but now after the latest Firefox update, 128.0, on my MacBook Air I can't do that anymore. I have to type in the search bar to bring up the search page.

I know it's a small thing but I wonder if it can be put back to the way it used to be.

Today, Firefox stopped playing audio on Facebook videos and won't play Netflix videos at all (Netflix error code: F7701-1003). Youtube works fine and has audio, but several other video sites I've tried have video but no audio. It was all working fine yesterday and I haven't changed any settings.

These websites work fine with both audio and sound on Microsoft Edge on the same laptop, so this is a problem exclusive to Firefox. OS is Windows 11 Home 23H2, Firefox is latest version (129.0.2)

Things I've tried: 1. Refresh Firefox settings 2. Download and install fresh copy of Firefox 3. Toggle DRM content in setting on/off - no difference no matter what is selected 4. Ensure that 'remember history' is selected 5. Check for Windows updates 6. Uninstall audio driver, restart and fresh install of audio driver 7. Ensure it's not in private mode 8. Turn off all extensions 9. Check volume mixer allows sound for Firefox 10. Clear the cache and cookies

I can't find any more suggestions on the internet, so any further suggestions welcome!

Hello, I did everything mentioned in support articles, but the tabs on firefox are still crashing frequently, sometimes the first I open, sometimes it's the third... But it is making my work really difficult. Here are IDs of some of the crash reports (i found that I should post them here to get help) bp-1362556a-479e-4d29-8d25-24d060240827 bp-f743f721-6668-44af-a590-f058d0240827 bp-abbc2e52-a121-41f2-9275-d73e60240827 bp-74137ee7-cfe7-4362-a450-567500240827 bp-ca2327bf-99b5-4f2d-9e08-42dd00240719

Please help Thanks