Forum der Gemeinschaft Firefox

I have a program up on cookingasmedicine.thinkific.com where students can go into my course and play videos. Everyone else can get the videos to play except me (the teacher) form my Lenovo computer. It used to work as I created the course with videos working. I can however see them operate on Internet Explorer! I have tried every setting, cookies, cache, etc. Nothing changes! This happened suddenly after an update about a year ago, it's been that long that I've been trying to get videos going again!

I called Thinkific and they can not recreate the video problem on their end - it's just my computer it seems. Other students using FireFox can see the videos as well - just not ME! It can't be my computer since I have been able to see the videos with no problems for years using this same computer. Now, I have to switch over to Edge or Internet Explorer in order to see the videos in my class program. Even if I uploaded new ones, they just won't play for me on my desktop. Thank you. Claire PS My current browseer is Firefox Thanks, Tazz

My home page no longer shows the Shortcuts menu Option (*) for bookmarking an open website is not shown Clicking on the Menu button does not produce any drop down menu

My YouTube homepage is blank when I visit using Firefox (see attached screenshot). Here is a list of all of the fixes I have tried:

-Disabling all extensions and turning off Enhanced Tracking Protection (at the same time) -Clearing cache -Clicking 'forget this site' on YouTube in my browser history -Restarting my PC/Firefox -Refreshing Firefox profile (this worked, but the issue returned after an hour) -Changing my system theme to light mode -Launching Firefox in troubleshoot mode -Logging in on an incognito window (with the same result) -Probably some other things I'm missing (I tried pretty much every result I could find from looking up 'YouTube homepage is blank' and 'YouTube homepage not loading).

The issue only occurs on Firefox and only after I log in to YouTube. This has never occurred before. I checked to make sure my Firefox and YouTube settings are the same as they've always been.

YouTube videos load fine as long as I paste the direct link into the URL bar, but ONLY the video (no comments, recommended videos, likes/dislikes, description, etc...) and I can't take it out of theatre mode nor fullscreen it (fullscreening it just removes the top bar of the browser--the video itself still has black bars on the sides).

Sometimes when I reload the page, I see the following at the end of the URL: &ThemeRefresh=1. I don't know if that means anything.

I am using the Firefox app on Windows 11. I am not using a VPN. This issue is specific to YouTube and YouTube only.

Any help would be greatly appreciated. Thanks!

Hello,

I apologize if the topic is incorrect, but I didn't know which applied to my situation the best.

Starting on Monday of this week (4/28/2025), YouTube no longer loads properly on Firefox for me. The entire page is covered in video slots with no videos and if I try using a link to a specific video, it will take me to the page, however the video will not load or play, additionally any other elements such as comments or suggested videos will not load. I am using the latest version of Firefox Developer Edition.

I have tried all of the following:

• disabling all of my add-ons
• clearing cache, cookies, and history
• uninstalling and reinstalling Firefox
• logging in and out of YouTube
• Reaching out to YouTube (they told me to just use Chrome)

I have asked my friend who also uses Firefox and YouTube works fine for him, so I'm not sure exactly what is making it not work.

Thank you for your time!

I can not get Youtube to load on desktop Firefox. It works fine on the mobile website, app, and Chrome. I've tried clearing cookies and site data, removing extensions, resetting Firefox, and disabling hardware acceleration, and so far nothing has worked. Has this been happening to anyone else ?

Whenever I get on YouTube the website will not completely load, If I restart Firefox and access the website it then loads completely. However when I click on any video it does the same thing as the included picture, however I can play the video, but I cannot click on anything. This only happens on Firefox, any other browser and I have no issue. I have also disabled my plugins and it does the same thing. I have tried multiple different suggestions from your help page and other solutions on the internet. If I could have some insight would be extremely welcomed, thank you and have a wonderful week.

Hello, I'm a blind, screen reader user. I've used FireFox and Thunderbird for years. In the last month-ish something has changed in the Update Dialog for both apps, that asks if you want to allow the app to make changes to your hard drive. With Jaws and NVDA screen readers, this dialog has normally spoken, so I can Tab to the Yes button, press Enter, the update happens and all is well. Suddenly, this dialog doesn't speak... not a word. Don't know where I am at all. I've tried pressing Alt-Y, which is a Windows accessibility standard for pressing a Yes button, but that hasn't worked in the past, and doesn't work now. I am blessed with a sighted husband. When this dialog has come up in FireFox and Thunderbird the last month, he has kindly bailed me out and clicked Yes. But this is a nightmare accessibility problem. Using only a screen reader there is no way out of this. Escape doesn't get rid of the dialog and just not update. The dialog sits on the screen, not speaking until you take some action. In fact, the first time this happened I couldn't figure out what was going on, but tried to handle it myself. Nothing talked, so in the middle of things, I used the power button to shut down. Well... we think I shut down in the middle of the app attempting to update. So my laptop came up with an error on the screen, and we actually had to use my husband's computer to get into my Microsoft account and dig up a huge numeric code that would allow my laptop to boot. It was bad and took a long time, and my husband is a saint. So... something changed about a month ago in the Update Dialogs for both FireFox and Thunderbird, that causes them to no longer be readable by screen readers. There is not a keyboard way to just press Yes. There's not actually a way to know for sure that the reason the computer won't talk is because this Update Dialog is sitting on the screen. The developers need to know this has happened and fix it. I don't know any other way to reach them. Thanks!

Even though CPU and GPU utilization is very low during 8K60fps Youtube playback in the Firefox browser on my base M4 Mac mini, the struggles heavily to play this, drops tons of frames, and the video almost stops playing.

8K 30 fps is not problem, and since utilization is pretty low, that doesn't explain the poor performance.

So please optimize 8K60fps Youtube playback on all platforms in the safari browser, but especially on Apple SIlicon Macs.

Youtube is nonfunctional on firefox as of April 29 2025. It was all working fine last night, then I woke up to no youtube. It loads the website as a blank screen. Videos can be accessed by going directly to their URL, but no recommendeds load in, no comments section, even the title and channel information is unavailable. I would say none of the buttons work, but there are no buttons to test. It works fine in Chrome still. I know it's not my extensions because I tried removing them all, and it didn't fix it. I know it's not my cache/cookies, because I cleared that too and it didn't fix it. I know it's not on Youtube's end, because it works fine in Chrome. I know it's not an update issue, because I updated my browser and it didn't fix it. Please. I want to be able to use youtube in firefox. Please help me fix this thing. I have attached photos, but I suspect they'll be more demonstrative of the problem than useful for troubleshooting.

When I opened Firefox all my webpages that I visited where there. Now it is just a blank screen and I have to go to webpages manually, there is no way to add them to my start screen. it just stays blank and search bar stays blue.

Hello people,

Please some help around the following issue, since a few days, Firefox will not play mp4 files directly in the browser. What it does when clicking to open an mp4 from the file server, it saves the file first and then opens a window to play it. Or it directly provides the save dialog window instead of playing it in the browser window directly.

Any ideas, appreciated. I have a lot of files to assess for my students, and this browser behavior makes it very tedious.

Greetings.

Good morning. Please I would like your help regarding the following problem that I have been facing suddenly for a few days. Any file I download via email or anything else has UTF-8 stuck in front of its name. Why is this happening all of a sudden? Thank you in advance..

Hi. There is a new feature of Firefox that bothers me. It is when I drag tabs around the top, they try to group when I don't want them to. So I go to about:config and find the "browser.tabs.groups.enabled" key and set it to false. But when I restart Firefox, the change reverts. How do I fix this so the change stays?

I've already tried going to Menu->Help->More troubleshooting information->Profile Folder->Open folder, but there is no "user.js" file there. Do I have to do a Firefox reset to fix this? I hope not...

Note that I'm pretty sure that other settings that I change do not revert when I restart Firefox. Right now, it seems to be just this one about:config setting, unless the new version of Firefox reverts all manually changed about:config settings upon restart.

Thanx in advance for any help.

For a while I've been able to put a youtube video in PiP mode while I do something in a videogame without any issues, but after yesterday's update every time I focus on the game the video becomes extremely laggy for no reason. I've turned off hardware acceleration (it was turned on before) and also tried it out in troubleshoot mode, but the result ended up the same. Has this happened to other people? Or a similar issue? Feels like more than a coincidence that this started happening after yesterday's update.

good afternoon I am having issues with my Imac OS 10.15.7 Catalina. I am continuing have to put a new password every time i wane to use TVNZ+ on my imac and ipad. Please advise what i need to do? Regards John

Hello. A while ago, all the images I tried uploading on Firefox started glitching. I thought it was an issue with the formatting of the images (PNG, JPG), but this happens with every single image, no matter what, including GIFs. It also glitches the images on certain sites, but I don't know why. I tried all the troubleshooting suggestions I found, but it is not a problem with my extensions, my antivirus, or my VPN. I also cleared the cache and restarted the browser.

I attached some images so you can see how the corrupted image looks. This does not happen with the same files on Firefox for Android or iOS, just on my desktop browser.

Basically: - I download an image, which can be outside of Firefox, and the image displays perfectly everywhere. - When I try uploading the image to edit online or to simply set it as a profile picture, it corrupts and shows a bunch of colorful lines. - Nothing I have done has solved this issue, and I'm starting to get sad :(

Sorry if this has been asked before, and thank you.