Este site está com funcionalidades limitadas enquanto realizamos manutenção para melhorar sua experiência de uso. Se nenhum artigo resolver seu problema e você quiser fazer uma pergunta, nossa comunidade de suporte pode te ajudar em @FirefoxSupport no Twitter e /r/firefox no Reddit.

Pesquisar no site de suporte

Evite golpes de suporte. Nunca pedimos que você ligue ou envie uma mensagem de texto para um número de telefone, ou compartilhe informações pessoais. Denuncie atividades suspeitas usando a opção “Denunciar abuso”.

Saiba mais

Esta discussão foi arquivada. Faça uma nova pergunta se precisa de ajuda.

Cannot play JWPlayer mp4 videos - "error loading media, file could not be played" in MS Windows 7 Firefox. Works on Firefox for mac.

  • 1 resposta
  • 23 têm este problema
  • 15 visualizações
  • Última resposta de cor-el

more options

We use mp4 / mv4 type videos. These videos are viewed through a JWPlayer playlist. They work fine using Firefox browser on a MAC, however on MS Windows 7, I get "Error loading media, file could not be played". They also work fine from MS Windows 7 using IE and CHROME browsers. Any idea what might be causing the problem when trying to play them from the Firefox browser on a Windows platform?

I have already tried uninstalling Firefox, deleting my profile and re-installing the latest version.

I logged a support problem with JWPlayer and they indicated that it ma be a browser specific related issue with html5?

Thanks for you help!

We use mp4 / mv4 type videos. These videos are viewed through a JWPlayer playlist. They work fine using Firefox browser on a MAC, however on MS Windows 7, I get "Error loading media, file could not be played". They also work fine from MS Windows 7 using IE and CHROME browsers. Any idea what might be causing the problem when trying to play them from the Firefox browser on a Windows platform? I have already tried uninstalling Firefox, deleting my profile and re-installing the latest version. I logged a support problem with JWPlayer and they indicated that it ma be a browser specific related issue with html5? Thanks for you help!

Todas as respostas (1)

more options

I would assume an issue with the HTML5 media player.

If those aren't working on Windows then it is possible that the proper codecs aren't installed.

You can try to disable the HTML5 media player and make Firefox use the Flash plugin.

You can do this by setting these two prefs to false on the about:config page:

  • media.windows-media-foundation.enabled
  • media.directshow.enabled

See also: Windows Media Feature Pack for Windows 7 N and for Windows 7 KN: