This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Playing video causing system crash - Ubuntu 20.04LTS

more options

Good day,

Using Firefox for normal web browsing is not a problem. However, when playing video (YouTube, Twitch.tv etc) I get this Decoder error under Syslog.

firefox_firefox.desktop[36209]: [Child 36209, MediaDecoderStateMachine #3] WARNING: Decoder=7f73b74d4400 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr<MediaSourceTrackDemuxer::SamplesPromise> mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /builds/worker/checkouts/gecko/dom/media/MediaDecoderStateMachine.cpp, line 3367

The crashes are random. I can play video for varying lengths of time. But the above Error keeps appearing. All packages are up to date.

Thanks.

Good day, Using Firefox for normal web browsing is not a problem. However, when playing video (YouTube, Twitch.tv etc) I get this Decoder error under Syslog. firefox_firefox.desktop[36209]: [Child 36209, MediaDecoderStateMachine #3] WARNING: Decoder=7f73b74d4400 '''Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR''' (0x806e0005) - RefPtr<MediaSourceTrackDemuxer::SamplesPromise> mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /builds/worker/checkouts/gecko/dom/media/MediaDecoderStateMachine.cpp, line 3367 The crashes are random. I can play video for varying lengths of time. But the above Error keeps appearing. All packages are up to date. Thanks.

All Replies (2)

more options

hello Esa.claudio...


If Ubuntu hangs, the first thing to try is to reboot your system. Sometimes you might have to do a cold boot. Power your computer off and then bring it back up. Restarting your computer resolves many problems such as low memory, application crashes, and the browser hangs.

After that...clear the cache memory of mozila firefox.

thank you.

more options

Hi,

Well when Ubuntu hangs the only option I have is to reboot my system by powering it off. Thank you for the reply but that doesn't solve my problem.

Thank you.