

This video plays correctly in macOS 11.0b3's included Safari 14 Technical Preview. Here's specific example clip which Firefox 79.0 reports as corrupt: I'm still seeing this issue specifically on Twitter 'GIFs' in 79.0 - videos on other sites and even longer form video clips seem to work fine, but the ones marked GIF still exhibit the same symptom of error with associated mozilla::MediaResult mozilla::AppleVTDecoder::InitializeSession(): Couldn't create decompression session!" in the developer tools console. (In reply to michael.holmes from comment #19) Media resource blob: could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005)ĭetails: mozilla::MediaResult mozilla::AppleVTDecoder::InitializeSession(): Couldn't create decompression session!įailed to create WebGL context: WebGL creation failed: If it is really necessary, please add it to the whitelist in MediaError::GetMessage: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - mozilla::MediaResult mozilla::AppleVTDecoder::InitializeSession(): Couldn't create decompression session! base.js:6336:19Īutoplay is only allowed when approved by the user, the site is activated by the user, or media is muted.

This error message will be blank when privacy.resistFingerprinting = true. Media resource blob: could not be decoded.
