Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

HTML5 streams are not working on twitch.tv and some other sites.

  • 2 回覆
  • 7 有這個問題
  • 2 次檢視
  • 最近回覆由 petra_wow

more options

I'm avoiding flash player. Twitch.tv should work fine (and works fine on Edge, with flash disabled). For some reason i keep getting error "no supported video backend available; Flash is not installed" I tried various solutions like clearing cache, disabling addons, reseting firefox, editing about:config media.xxx etc. The problem exists on two computers (using sync).

I'm avoiding flash player. Twitch.tv should work fine (and works fine on Edge, with flash disabled). For some reason i keep getting error "no supported video backend available; Flash is not installed" I tried various solutions like clearing cache, disabling addons, reseting firefox, editing about:config media.xxx etc. The problem exists on two computers (using sync).

所有回覆 (2)

more options

Most of the Twitch.tv streams is still using Flash Player embedded for video as only the controls and chat are html5 since June and July 2015.

Twitch is planning to change to HTML5 for streams this year sometime.

more options

That's not true. Every twitch stream could be viewed without flash. I'm talking not only about twitch, youtube works fine though