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“Whenever I play YouTube videos in Firefox, the playback stutters and becomes choppy. This happens even at lower resolutions (e.g., 480p). I’ve tested on Chrome and Edge, and the videos play smoothly there. I’m using Firefox version [insert version number] on [insert operating system]. I’ve already tried clearing cache, disabling extensions, and updating drivers, but the issue persists. Could you help me troubleshoot what else might be causing this?”

For the past.. month I would say, any time I try to use Youtube on my Firefox Browser it nearly always switches over to landscape mode after watching a video. It doesn't matter whether my phone screen's auto rotate is on or off it still does it. Yes. I already tried to turn my auto rotate on to switch it back to potrait mode, it still won't work. The only solution I currently have is closing Youtube all together from my Browser, which really REALLY sucks!!

Can someone PLEASE look into the glitch?!

I cannot get audio to play on the browser. I've gone into settings and the default says that audio should be on for all websites. However, Youtube, facebook, instagram, etc., won't play audio. Audio plays on other browsers (Chrome, Edge). what must I do to get audio working?

Context

While playing YouTube videos in Firefox, intermittent crackling appears after a few minutes of playback. This report documents detailed testing that demonstrates the issue is not related to the DAC, USB interface, or system hardware, and is exclusive to Firefox.

2. System Configuration

CPU: AMD Ryzen 5 5600X @ 43 °C

RAM: 64 GB DDR4 dual-channel (16-20-20-38 @ 1572 MHz)

Motherboard: ASRock X570 Phantom Gaming 4 (AM4) @ 54 °C

GPU: NVIDIA GeForce RTX 3050 (audio drivers disabled, audio hardware off)

Monitors: LG HDR WFHD 2560x1080@60Hz and IPS236 1920x1080@60Hz

Storage: Multiple SSD and HDD SATA drives (500 GB – 2 TB)

Audio: Realtek High Definition Audio disabled; iFi nano/UNO DAC connected via USB with power filtering, using Exclusive Mode / ASIO

3. Tests Performed 3.1 DAC and USB Validation

Continuous playback of PCM 384 kHz/24‑bit and DSD256 via Roon/ASIO.

Duration: over 25 minutes of uninterrupted DSD256 playback.

Result: no crackling, pops, or errors.

Conclusion: DAC, firmware, USB cables, ports, and power supply are fully operational; heavy data load does not cause errors.

3.2 Browser Comparison

Chrome (YouTube, identical conditions): continuous playback without crackling.

Firefox (YouTube, identical conditions): crackling progressively appears minutes into playback, temporarily disappearing when the video is paused.

3.3 Isolation of Variables

USB motherboard ports and original drivers fully tested.

GPU audio drivers and hardware disabled.

Windows Shared Mode off, Exclusive Mode enabled.

Predefined audio formats set according to DAC preferences.

USB power management disabled.

DAC temperature stable; no overheating observed.

4. Technical Conclusion

Hardware: DAC, USB, cables, power, firmware, and GPU are not the cause of the crackling.

Operating System: Windows 11 is correctly configured; Exclusive Mode / ASIO works without errors.

Browser: Firefox is the only element consistently reproducing the issue.

Most Likely Cause: Firefox’s buffer management and audio sandboxing interacting with Windows, causing intermittent interruptions in audio flow.

Summary: All hardware and OS factors have been tested and validated: DAC, USB, cables, power supply, firmware, GPU, and temperature do not produce crackling. The only consistent factor is Firefox, making this a software-bound issue.

Engineering Note: This diagnosis conclusively demonstrates that the intermittent audio crackling on YouTube is caused exclusively by Firefox on Windows 11, independent of DAC or USB hardware. The issue should be investigated at the browser level, specifically how Firefox handles continuous digital audio streams and buffers on Windows.

As of around 6 weeks ago (bit of a guess) I no longer have the option of pausing/playing media on a tab from the tab list. For at least the last few years prior to this issue, whenever I had a tab playing media (mostly video, but sometimes audio e.g. a podcast episode on BBC.com) there would be a small pause button for that tab in the tab list.

I've attached a attachment (2 screenshots merged). The tab with the purple circle is currently playing a MP4 video (streamable.com) and I would usually see a pause button, I think where the circle is located but might have been in a different corner.

I found this Reddit thread which mentions the issue but outside of the 2 people in this thread I have not found any other info or reports. https://www.reddit.com/r/firefox/comments/1rh5gcy/youtube_buttons_playpause_missing_in_android/

Additional info: while playing video, I am able to pause through system notification (see image attachment) so the playback IS recognized. But no pause/play button in tab list.

Version and device info: 150.0.1 (Build #2016157687), 094f3362dcbcefdce34f05b355607cdce06a4ef4 GV: 150.0.1-20260427013024 AS: 150.0.1 OS: Android 16

Motorola Edge 60 Neo

Since today all embedded videos online are turned upside down. Time, controls and subtitles are still fine though. And also have an issue scrolling websites. Scrolling works just fine as long as i start scrolling when nothing is moving. If the screen is already scrolling slowly and i start to scroll more the screen freezes until a second or do after i let go.

Tried restarting phone and clearing cache Nothing changed as far as I'm aware. It's only firefox. Everything else is fine

"Oops, your browser's HLS setting is too low." Trying to stream, in browser, and I'm completely blocked today. The browser says it's fully updated. And yet.

Whatever the case, where and how do I check and/or adjust the HLS setting?

Hello, I hope you are well.

All videos played on my FireFox browser are slowed. This happens on any video playing, including on YouTube, even when the video is on 1x speed and is not slowed. It has been getting progressively slower over the past months, and was not fixed after I uninstalled and reinstalled FireFox. Please kindly assist.