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YouTube videos are choppy and drop frames in Firefox

When I play YouTube videos in Firefox, the video stutters and drops frames, even when set to 480p. The audio continues to play normally. This issue does not happen in Chr… (閱讀更多)

When I play YouTube videos in Firefox, the video stutters and drops frames, even when set to 480p. The audio continues to play normally. This issue does not happen in Chrome on the same laptop.

The problem started about a week ago. I’m using Firefox on Windows 11. Restarting Firefox did not resolve the issue. I’ve attached screenshots for reference.

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Lost my audio on Firefox

Lost my audio on Firefox. All movies and web site videos SILENT Strange exceptions: e.g., can't ear video on youtube.com; BUT, CAN hear it if web page has LINK to YouTub… (閱讀更多)

Lost my audio on Firefox. All movies and web site videos SILENT

Strange exceptions: e.g., can't ear video on youtube.com; BUT, CAN hear it if web page has LINK to YouTube!?!? SOME Twitter videous have audio; others are silent

How do I turn Firefox audio back ON?

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Videos autoplay iPad Pro M5 2026

Videos autoplay using iPad Pro M5 despite Auto-Play Video Previews, Auto-Play Animated Images and Auto-Play Message Effects all being turned OFF. Current Mozilla advice a… (閱讀更多)

Videos autoplay using iPad Pro M5 despite Auto-Play Video Previews, Auto-Play Animated Images and Auto-Play Message Effects all being turned OFF. Current Mozilla advice appears to be associated with PC use not iPad. Thank you!

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SOLUTION: Firefox opens .m3u files as text. Doesn't play the audio playlist/track.

I've seen many questions about this matter over the years, and thought I'd been lucky. Every link containing a .m3u file opened in my media player, WACUP. However ... aft… (閱讀更多)

I've seen many questions about this matter over the years, and thought I'd been lucky. Every link containing a .m3u file opened in my media player, WACUP. However ... after an update to version 143 it suddenly didn't. .m3u links opened as a text file in the browser window.

We have five windows 10 workstations in the home, and this happened with all of them.

I write webpages for a family intranet, and several thousand tracks are available for playing, so that was messed up too.

These are the steps I followed - unsuccessfully:

  • Bulleted list item Checked file association settings in Windows 10. .m3u was associated to WACUP, my media player.
  • Bulleted list item Checked file actions in Firefox. .m3u files set to open in WACUP.
  • Bulleted list item Added the type="audio/mpgurl" in the anchor link for webpages I make.
  • Bulleted list item Changed the default download panel in FF settings to "Ask". I could then get it to ask me to save or open. "Open" worked, as it this is tied to the system default audio player - nothing to do with FF.
  • Bulleted list item A few other frustrating, but eventually inconsequential solutions that were in the realm of "I wonder if ...?"

So ... after all of this and a lot of investigation I noticed something interesting: All my playlists were in the format with just a listing of the filename, which as mentioned had been working for years:

Example "01 Queen - We Are The Champions.mp3".

Yet a playlist made in VLC had a different format: example,

"#EXTM3U

  1. EXTINF:-1,01 The Beach Boys - Help Me Rhonda.mp3

01 The Beach Boys - Help Me Rhonda.mp3 "


SOLUTION

Having far too much time on my hands, I experimented with this, dissecting the various components of the playlist, and eventually found when adding "#EXTM3U" as the first line in the playlist, Firefox opened the playlist in WACUP once again when the link was clicked.

New playlist entry:

  1. EXTM3U

01 Queen - We Are The Champions.mp3 02 ... 03 ... etc.

I've left the "type='audio/mpegurl" declaration in the link.

I don't know why this happened, but I hope somebody finds this useful in the future.

So now I have several thousand playlists to edit, although Notepad++ will make this easier, but by no means quick.

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Firefox having problems with streams: This video is either unavailable or not supported in this browser. (Error #4000)

Hello, I'm having a problem on Windows 10. It's a fresh windows installation and I tried already some solutions: reinstalling firefox, deleting cache, refreshing firefox,… (閱讀更多)

Hello, I'm having a problem on Windows 10. It's a fresh windows installation and I tried already some solutions: reinstalling firefox, deleting cache, refreshing firefox, private windows, no add ons, trouble shoot mod. Nothing helped. The problem seems to be with live stream, either on twitch.tv or youtube.

Solved 封存 3 1541

Sound output problem

I am using FF desktop. All of a sudden, I get no sound through my laptop speakers when trying to watch videos (on YT and FB for example). I still get sound if I use exter… (閱讀更多)

I am using FF desktop. All of a sudden, I get no sound through my laptop speakers when trying to watch videos (on YT and FB for example). I still get sound if I use external speakers through the 3.5" jack. I still get sound through other browsers, no matter if it's through the laptop speakers or external ones. So, it is definitely an FF problem. Sound works fine on all other media files on the laptop. Refreshing FF didn't fix it. Nor did reinstalling or restarting the laptop. I tried changing the autoplay settings as suggested in the help article, but still no laptop audio via FF. How can I fix this? Thanks

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How to fix audio not playing via HDMI

Whenever I play something in the browser while connected to my TV by HDMI, the sound still comes out of the laptop speakers. This happened suddenly, without any discernib… (閱讀更多)

Whenever I play something in the browser while connected to my TV by HDMI, the sound still comes out of the laptop speakers. This happened suddenly, without any discernible reason, and I can't seem to fix it. Everything else works, only content played from Firefox remains in the laptop speakers. I've checked my audio mixer, nothing seems amiss, I've updated Firefox and refreshed the application, still nothing. Hell, I've even tried different cables and HDMI ports, but nothing works. What could be the issue? Why did my audio suddenly stop working, and what can I do about it?

Solved 封存 1 339

Firefox aboutpreference@tabsBrowsing

I couldn't sign my Alejandra .com on my computer so i need to cahnge to Firefox aboutpreferences@tabsBrwosing so the video from Aljazeera video live news awork on my co… (閱讀更多)

I couldn't sign my Alejandra .com on my computer so i need to cahnge to Firefox aboutpreferences@tabsBrwosing so the video from Aljazeera video live news awork on my computer Thank kind regards Peter tan

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YouTube Fade in animation

When I full screen in YouTube, Firefox makes a Fade in animation. Can I disable it and make the default animation works? Note: I notice that Firefox on Linux doesn't hav… (閱讀更多)

When I full screen in YouTube, Firefox makes a Fade in animation. Can I disable it and make the default animation works?


Note: I notice that Firefox on Linux doesn't have this feature, I don't know why this feature is only for Windows.

System Information: Surface laptop has Windows 11.

Solved 1 40

compliaNT

[redacted] problem you [redacted] im having issues with the video and ads as all of my apps are disabeld nothing works and firefox it self causing probs and no one is hel… (閱讀更多)

[redacted] problem you [redacted] im having issues with the video and ads as all of my apps are disabeld nothing works and firefox it self causing probs and no one is helping out.

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Widevine stopped working yesterday 4/30 can't watch crunchyroll or hianime.

Since yesterday Firefox stopped working with Crunchyroll and Hidive and says, "Firefox is installing components needed to play the audio and video on this page. Please t… (閱讀更多)

Since yesterday Firefox stopped working with Crunchyroll and Hidive and says, "Firefox is installing components needed to play the audio and video on this page. Please try again later."

150.0.1 (64-bit) Bazzite Linux 6.19.14-ogc1.1.fc44.x86_64 bazzite-gnome-nvidia-open:stable v44.20260501.1 Widevine plugin is version 4.10.2934.0.

Additionally, I've disabled extensions as well, cleared the cache. I've disabled play DRM content and restarted the browser before turning it back on. I've changed from my own dns server which I see nothing being blocked to google public dns and saw no difference. Everything was working fine on Wednesday night and stopped on Thursday.

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