Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Nummer anzurufen, sie per SMS zu kontaktieren oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Learn More

Most HTML5 support gone

  • 3 Antworten
  • 1 hat dieses Problem
  • 296 Aufrufe
  • Letzte Antwort von 3sf98a

more options

Hello,

Ever since installing a fresh copy of Windows 8.1 N Pro, all Firefox installations (latest, 47.0.1., 32bit, 64bit) have had extremely limited HTML5 support -- even fresh installations with all user data manually removed from AppData and no plugins can't play must HTML5 videos (they automatically go to download).

I even get a "YouTube videos missing quality options on this browser" message. I've attached a screenshot of the YouTube HTML5 Video Player page and the error message.

This line seems suspicious and is probably the issue: "supportsHardwareH264": "No; Failed to create H264 decoder",

My laptop's got dual graphics and is running Firefox on Intel(R) HD Graphics 5500. All drivers (Nvidia & Intel) are latest.

Angefügte Screenshots

Geändert am von 3sf98a

Ausgewählte Lösung

hi, firefox depends on the codecs provided by the operating system when playing-back proprietary h.264 media formats. windows n editions come without those codecs by default, so you'll need to manually download the missing media components. please refer to Fix video and audio playback problems on Firefox for Windows for the download links...

Diese Antwort im Kontext lesen 👍 1

Alle Antworten (3)

more options

Ausgewählte Lösung

hi, firefox depends on the codecs provided by the operating system when playing-back proprietary h.264 media formats. windows n editions come without those codecs by default, so you'll need to manually download the missing media components. please refer to Fix video and audio playback problems on Firefox for Windows for the download links...

more options

See for example https://support.microsoft.com/en-us/kb/2929699

This is due to you using a N version of Win 8.1

more options

I'd like to thank you both for your replies.

Both are equally useful, but I've chosen the first published.

I thought that Windows N versions came without Windows Media Player, Windows Media Center etc. but not without codecs. I've installed the update and everything works now.

Thanks again.