Closed Bug 1757734 Opened 2 years ago Closed 2 years ago

1080p 60fps Fullscreen videos stutter


(Core :: Audio/Video: Playback, defect, P3)

Firefox 97





(Reporter:, Unassigned, NeedInfo)



(1 file)

Attached file Firefox.txt

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0

Steps to reproduce:

Changed 720p to 1080p 60fps on you tube

Actual results:

video Lagging in full screen

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Component: Untriaged → Audio/Video: Playback
Product: Firefox → Core

Can you right click on the video and choose "stats for nerds" and paste the contents of the "Codecs" line here? Please do this for both Firefox and Chrome?

Severity: -- → S3
Priority: -- → P3


Video ID / sCPN0_Cgxy7N-V0 / TB37 DVWP 34VN
Viewport / Frame 1920x1080 / 2269 dropped of 2276
Current / Optimal Res1920x1080@60 / 1920x1080@60
Volume / Normalized
28% / 28% (content loudness -13.9dB)
Codecsvp09. (303) / opus (251)
Colorbt709 / bt709
Connection Speed35095 Kbps
Network Activity0 KB
Buffer Health27.46 s
Mystery Texts:8 t:62.49 b:5.072-89.957 L
Thu Mar 03 2022 08:39:47 GMT+0530 (India Standard Time)


Video ID / sCPN0_Cgxy7N-V0 / 2ZM8 FD50 XTA8
Viewport / Frames1920x1080 / 1149 dropped of 3154
Current / Optimal Res1920x1080@60 / 1920x1080@60
Volume / Normalized82% / 82% (content loudness -13.9dB)
Codecsvp09. (303) / opus (251)
Colorbt709 / bt709
Connection Speed11237 Kbps
Network Activity0 KB
Buffer Health31.02 s
Mystery Texts:8 t:52.48 b:0.000-83.433 L
Thu Mar 03 2022 08:30:40 GMT+0530 (India Standard Time)

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0


I have tested your issue in Release 97, Beta 98, and the latest Nightly build 99.0a1 (2022-03-07) but could not reproduce it using Windows 10.
If the issue is still reproducible on your end, can you please retest this using the latest Nightly build ( using a new clean Firefox profile ( to eliminate the potential causes?

Thanks for the report.

Flags: needinfo?(


I have tested in nightly build no issues found when playing 1080p60fps videos, created new profile in firefox and tested but no luck issue still persists in firefox.

Flags: needinfo?(


Updated firefox to 98 still the issue persists
changed settings to use hardware acceleration when available - 720 60fps videos are playing smooth on youtube, however 1080 60fps are not playing smooth as 720 60fps resloution quality.
firefox start up is also quite slow
no issues found in chrome while playing the above said resloution
Please help, i dont want to switch to chorme due to this reason.
also let me know if there are any other viable options.
Thank You

Flags: needinfo?(jmathies)
Flags: needinfo?(jmuizelaar)

You're graphics hardware is pretty old - NVIDIA GeForce 210, which shipped back in 2009. I'm not surprised you're having performance problems on 1080 video. There's probably not much we can do here, we're just hitting the limit of what we can paint.

Flags: needinfo?(jmuizelaar)
Flags: needinfo?(jmathies)

One thing you could do to help us diagnose exactly where the problem is is provide a 'Graphics' performance profile -

Severity: S3 → S4

Well I agree GPU is pretty old however I don't have any issue while using Chrome with the same hardware

Closed: 2 years ago
Resolution: --- → MOVED

Why did you resolve this?

Flags: needinfo?(
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