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[Solved] Poster Image Vanishes in Firefox

  • # April 17, 2015 at 3:36 pm

    This my first post.
    Please take a look my implementation of a simple video tag here:
    The video poster frame shows up in all browsers except Mac Firefox (it’s fine in Firefox for PC).
    The video plays properly in all browsers; it’s only the poster frame that doesn’t appear in Mac Firefox.
    I’ve researched the topic online, but can’t find the solution.
    Thanks in advance.
    P.S. I’ve tried signing up for CodePen, but it keeps giving me an error message with no explanation.

    # April 17, 2015 at 9:36 pm

    i wish i could help but I don’t own a mac

    # April 18, 2015 at 2:50 pm


    I’ve just checked the page in Firefox 37.0.1 on Mac 10.10.3 and I can see the poster image fine.

    # April 19, 2015 at 5:07 am

    Hi, Tim!
    Thanks for checking it out.
    It must be some extension that’s bugging my Firefox – I’ll try disabling them.

    # April 19, 2015 at 5:28 am

    Discovered the cause of the problem: it was the DivX Plus Web Player HTML5 add-on. Disabled it and the poster image is now visible.
    Thanks, Tim!

    # April 19, 2015 at 5:51 am

    No worries, glad I could help :)

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