Open Bug 2042795 Opened 2 months ago Updated 1 month ago

www.gsmarena.com - The embedded videos fail to load due to "No video with supported format and MIME type found" error

Categories

(Web Compatibility :: Site Reports, defect, P2)

Product:
Web Compatibility
Component:
Site Reports
Version:
Firefox 153
Platform:
Desktop
Windows
Type:
defect

Tracking

(Webcompat Priority:P3, Webcompat Score:4, firefox151 affected, firefox152 affected, firefox153 affected)

Project Flags:
Webcompat Priority P3
Webcompat Score 4
Tracking Flags:
Tracking Status
firefox151 --- affected
firefox152 --- affected
firefox153 --- affected

People

(Reporter: bfarkas, Unassigned)

References

(Depends on 1 open bug,
URL
)

Details

(Keywords: webcompat:platform-bug, webcompat:site-report, Whiteboard: [webcompat-source:product][webcompat:sightline][webcompat:core])

User Story

platform:windows,mac,linux,android
impact:content-missing
configuration:general
affects:few
branch:release
diagnosis-team:media
user-impact-score:90

Attachments

(1 file)

Unsupported video format Nightly vs Chrome
497.40 KB, video/mp4
Details

Environment:
Operating system: Windows
Firefox version: Firefox 151.0 (release) / Firefox Nightly 153.0a1 (2026-05-26)

Preconditions:

  • Clean profile

Steps to reproduce:

  1. Navigate to: https://www.gsmarena.com/google_android_17_continue_on-news-72910.php
  2. Scroll down the page until the embedded videos
  3. Observe the page

Expected Behavior:
The embedded videos can be played accordingly

Actual Behavior:
"No video with supported format and MIME type found" error is displayed and the embedded videos cannot be played

Notes:

  • Reproducible on the latest Firefox Release and Nightly
  • Reproducible regardless of the ETP setting
  • Works as expected using Chrome

Created from webcompat-user-report:c0b7fb37-36d7-4055-95ab-00ed85621cde

Since nightly and release are affected, beta will likely be affected too.
For more information, please visit BugBot documentation.

status-firefox152: --- → affected
Whiteboard: [webcompat-source:product] → [webcompat-source:product][webcompat:sightline][webcompat:core]
Severity: -- → S2
User Story: (updated)
Webcompat Priority: --- → P2
Webcompat Score: --- → 6
Keywords: webcompat:needs-diagnosis
Priority: -- → P2

Firefox says

Media resource https://fdn.gsmarena.com/imgroot/news/26/05/google-android-17-continue-on/gsmarena_002.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005)
Details: auto mozilla::SupportChecker::AddMediaFormatChecker(const TrackInfo &)::(anonymous class)::operator()() const: Decoder may not have the capability to handle the requested video format with YUV444 chroma subsampling.

User Story: (updated)
Webcompat Priority: P2 → P1
Webcompat Score: 6 → 8
User Story: (updated)
Depends on: yuv444

This is just the yuv444 problem.

Keywords: webcompat:needs-diagnosis → webcompat:platform-bug

Safari can't play the video either.

User Story: (updated)
User Story: (updated)
Webcompat Priority: P1 → P3
Webcompat Score: 8 → 4
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