We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Avatar for Username

Etsi tuesta

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.

Lue lisää

Ketju on arkistoitu. Esitä kysymys, jos tarvitset apua.

h264 playback with hardware acceleration in FF 30.0 breaks after first play

  • 1 vastaus
  • 3 henkilöllä on sama ongelma
  • 26 näyttöä
  • Viimeisin kirjoittaja meeotch

meeotch
meeotch
more options

Playing an h264 encoded (in mp4 container) file directly in the browser on FF 30.0 with hardware acceleration turned on produces the following behavior for me on Windows 7:

1st play - fine

reload page - video will not play

play any *other* h264/mp4 video (or the same video in a second tab) - video will not play

close tab, clear cache, open new tab with video - video plays again, but no further video or reload will work until procedure is repeated.

turn off hardware acceleration, restart Firefox - everything behaves as it should. (Though cpu usage is now through the roof, of course.)

I've tried this with all addons disabled, in safe mode, and with a totally blank profile - same behavior. Here's a test video: http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4

Playing an h264 encoded (in mp4 container) file directly in the browser on FF 30.0 with hardware acceleration turned on produces the following behavior for me on Windows 7: 1st play - fine reload page - video will not play play any *other* h264/mp4 video (or the same video in a second tab) - video will not play close tab, clear cache, open new tab with video - video plays again, but no further video or reload will work until procedure is repeated. turn off hardware acceleration, restart Firefox - everything behaves as it should. (Though cpu usage is now through the roof, of course.) I've tried this with all addons disabled, in safe mode, and with a totally blank profile - same behavior. Here's a test video: http://www.quirksmode.org/html5/videos/big_buck_bunny.mp4

Kaikki vastaukset (1)

meeotch
meeotch Kysymyksen kysyjä
more options

I should probably mention that my graphics hardware is ATI FireGL 7500 (mobile), and that I have the latest drivers available from my laptop manufacturer. Also, hardware accel in Chrome seems to work fine with the same files.