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!

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.

সহায়তা খুঁজুন

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.

আরও জানুন

I tried update newest firefox version but when view website with html5(firefox supported) thats allway error

  • 1 উত্তর
  • 1 এই সমস্যাটি আছে
  • 1 দেখুন
  • শেষ জবাব দ্বারা finitarry

more options

My site is gascash.co, i tried added html5 player, open on ie9 thats run ok, but when run on firefox thats error. Im using newest firefox version, do u have any idea to help me please?

My site is gascash.co, i tried added html5 player, open on ie9 thats run ok, but when run on firefox thats error. Im using newest firefox version, do u have any idea to help me please?

All Replies (1)

more options

Is it a video that you cannot play? I did not see any videos on that page.