I don't think this is Firefox-specific. I can reproduce this in Firefox Nightly 136 on Linux, **and also** Chrome 134 dev on LInux. I can also reproduce in Firefox release 134 and Chrome 132 release on Windows (tested using BrowserStack). I can *not* reproduce in Firefox Nightly 136 on my MacBook Pro, but I can reproduce in Firefox The background of this hero element is an mp4 video file, specifically https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_540p.mp4 , and Firefox (and Chrome) is failing to decode it on my machine -- when I view the site as well as when I just view the video directly (it fails to play, though it plays successfully in gnome-web/epiphany i.e. WebKit). Firefox Nightly's Web Console shows the following on Linux and Windows: ``` Media resource https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_1080p.mp4 could not be decoded. www.dennys.com All candidate resources failed to load. Media load paused. Media resource https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_540p.mp4 could not be decoded. www.dennys.com All candidate resources failed to load. Media load paused. Media resource https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_1080p.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006) ``` Anyway: kicking this over to the media team for further diagnosis, given that it seems like a media handling issue (possibly needing to be graceful in the face of corrupt/broken content).
Bug 1941740 Comment 2 Edit History
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I don't think this is Firefox-specific. I can reproduce this in Firefox Nightly 136 on Linux, **and also** Chrome 134 dev on LInux. I can also reproduce in Firefox release 134 and Chrome 132 release on Windows 10 (tested using BrowserStack). I can *not* reproduce in Firefox Nightly 136 on my MacBook Pro, but I can reproduce in Firefox The background of this hero element is an mp4 video file, specifically https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_540p.mp4 , and Firefox (and Chrome) is failing to decode it on my machine -- when I view the site as well as when I just view the video directly (it fails to play, though it plays successfully in gnome-web/epiphany i.e. WebKit). Firefox Nightly's Web Console shows the following on Linux and Windows: ``` Media resource https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_1080p.mp4 could not be decoded. www.dennys.com All candidate resources failed to load. Media load paused. Media resource https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_540p.mp4 could not be decoded. www.dennys.com All candidate resources failed to load. Media load paused. Media resource https://www.dennys.com/sites/default/files/video-thumbnails/2024-10/307800_Nov24_Website_HomepageHero_1080p.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006) ``` Anyway: kicking this over to the media team for further diagnosis, given that it seems like a media handling issue (possibly needing to be graceful in the face of corrupt/broken content).