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[Solved] Firefox won't play MP4
Posted: April 10th, 2016, 10:02 am
by David
Going a bit off-topic: Firefox won't play the video. The error console complains about the "Content-Type: video/mp4" header.
Re: Prince of Persia port for Roku streaming box
Posted: April 10th, 2016, 10:26 am
by Norbert
David wrote:
Going a bit off-topic: Firefox won't play the video. The error console complains about the "Content-Type: video/mp4" header.
Works in Firefox for me. Version 45.0, on Linux.
Re: Prince of Persia port for Roku streaming box
Posted: April 10th, 2016, 5:39 pm
by Andrew
I viewed it in Firefox as well. Version 45.0.1, on Windows.
Re: Prince of Persia port for Roku streaming box
Posted: May 23rd, 2016, 7:11 pm
by David
From
viewtopic.php?p=18542#p18542 :
David wrote:
Going a bit off-topic: Firefox won't play the video. The error console complains about the "Content-Type: video/mp4" header.
I think I found why...
https://developer.mozilla.org/en-US/docs/Web/HTML/Supported_media_formats wrote:
[10] To avoid patent issues, support for
MPEG 4, H.264 and MP3 is not built directly into Firefox. Instead
it relies on support from the OS or hardware (the hardware also needs to be able to support the profile used to encode the video, in the case of MP4). Firefox supports these formats on the following platforms:
Windows Vista+ since Firefox 22.0, Android since Firefox 20.0, Firefox OS since Firefox 15.0, Linux since Firefox 26.0 (relies on GStreamer codecs) and OS X 10.7 since Firefox 35.0.
So that's why it won't work on XP...
Anyway, if I copy the URL out from the error message then I can play it in VLC player.
(As for why VLC does not have patent issues... see:
http://www.videolan.org/legal.html )
Re: [Solved] Firefox won't play MP4
Posted: May 27th, 2016, 5:49 pm
by David
I moved posts about MP4 to this new topic from
this topic.
Re: [Solved] Firefox won't play MP4
Posted: April 1st, 2018, 10:33 am
by David
Great, now it seems Firefox won't even play the newest YouTube videos, like this one:
viewtopic.php?p=23153#p23153
I get an error message that the browser doesn't recognize any of the available video formats.
Older YouTube videos work fine:
viewtopic.php?p=23147#p23147
Re: [Solved] Firefox won't play MP4
Posted: April 22nd, 2018, 11:28 am
by David
David wrote: ↑April 1st, 2018, 10:33 am
Great, now it seems Firefox won't even play the newest YouTube videos, like this one:
viewtopic.php?p=23153#p23153
I get an error message that the browser doesn't recognize any of the available video formats.
It works now. How odd.
Maybe YouTube delayed a bit the conversion to this supported format (OGG) or something?