Bugzilla

I'm running Nightly (147.0a1 (2025-11-17) (64-bit) as of writing) on Arch Linux with latest updates applied.

Back in ~mid-October I noticed I wasn't able to play live video from multiple websites (YouTube, Twitch, ccc.de, etc.), the players all show me an error saying my browser cannot play the video. On some social media sites (BlueSky, LinkedIn, Instagram) videos play but with no audio. On some websites (AirMo) videos don't play at all.

I can reproduce this in troubleshooting mode as well.

The issue has been there for about a month now, and at the time (when I asked in #firefox on Slack) I saw mentions that using a new profile might help. I've been procrastinating on this a bit, but I've recreated my profile today, and the problem still persists.

I'm running Nightly (147.0a1 (2025-11-17) (64-bit) as of writing) on Arch Linux (Wayland + PipeWire) with latest updates applied.

Back in ~mid-October I noticed I wasn't able to play live video from multiple websites (YouTube, Twitch, ccc.de, etc.), the players all show me an error saying my browser cannot play the video. On some social media sites (BlueSky, LinkedIn, Instagram) videos play but with no audio. On some websites (AirMo) videos don't play at all.

I can reproduce this in troubleshooting mode as well.

The issue has been there for about a month now, and at the time (when I asked in #firefox on Slack) I saw mentions that using a new profile might help. I've been procrastinating on this a bit, but I've recreated my profile today, and the problem still persists.

I'm running Nightly (147.0a1 (2025-11-17) (64-bit) as of writing) on Arch Linux (Wayland + PipeWire) with latest updates applied.

Back in ~mid-October I noticed I wasn't able to play live video from multiple websites (YouTube, Twitch, ccc.de, etc.), the players all show me an error saying my browser cannot play the video. On most sites sites (BlueSky, LinkedIn, Instagram, or a small landing page I've got with a single `<video>` tag) videos play but with no audio. On some websites (AirMo, PeerTube) videos don't play at all. Only YouTube seems to work correctly for non-live video.

I can reproduce this in troubleshooting mode as well.

The issue has been there for about a month now, and at the time (when I asked in #firefox on Slack) I saw mentions that using a new profile might help. I've been procrastinating on this a bit, but I've recreated my profile today, and the problem still persists.

I'm running Nightly (147.0a1 (2025-11-17) (64-bit) as of writing) on Arch Linux (Wayland + PipeWire) with latest updates applied.

Back in ~mid-October I noticed I wasn't able to play live video from multiple websites (YouTube, Twitch, ccc.de, etc.), the players all show me an error saying my browser cannot play the video. On most sites (BlueSky, LinkedIn, Instagram, or a small landing page I've got with a single `<video>` tag) videos play but with no audio. On some websites (AirMo, PeerTube) videos don't play at all. Only YouTube seems to work correctly for non-live video.

I can reproduce this in troubleshooting mode as well.

The issue has been there for about a month now, and at the time (when I asked in #firefox on Slack) I saw mentions that using a new profile might help. I've been procrastinating on this a bit, but I've recreated my profile today, and the problem still persists.

I'm running Nightly (147.0a1 (2025-11-17) (64-bit) as of writing) on Arch Linux (Wayland + PipeWire) with latest updates applied.

Back in ~mid-October I noticed I wasn't able to play live video from multiple websites (YouTube, Twitch, ccc.de, etc.), the players all show me an error saying my browser cannot play the video. On most sites (BlueSky, LinkedIn, Instagram, or a small landing page I've got with a single `<video>` tag) videos play but with no audio. On some websites (AirMo, PeerTube) videos don't play at all (PeerTube shows `manifestIncompatibleCodecsError`). Only YouTube seems to work correctly for non-live video.

I can reproduce this in troubleshooting mode as well.

The issue has been there for about a month now, and at the time (when I asked in #firefox on Slack) I saw mentions that using a new profile might help. I've been procrastinating on this a bit, but I've recreated my profile today, and the problem still persists.