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Any ideas why this Flash page won't work in FireFox but will in IE



6:36 pm on Nov 25, 2009 (gmt 0)

5+ Year Member


[edited by: eelixduppy at 5:10 pm (utc) on Nov. 26, 2009]


7:20 pm on Nov 25, 2009 (gmt 0)

WebmasterWorld Senior Member rocknbil is a WebmasterWorld Top Contributor of All Time 10+ Year Member

Welcome aboard JayKay_01, see TOS [webmasterworld.com], #13.

Here is the code, anonymized:

<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
width="990" height="500" id="RedGeckoIntro2">
<param name="allowScriptAccess" value="sameDomain" />
<param name="allowFullScreen" value="false" />
<param name="movie" value="Flash/your-flash-file.swf" />
<param name="quality" value="high" />
<param name="wmode" value="transparent" />
<param name="bgcolor" value="#ffffff" />

Moz browsers need <embed>, IE and others, <object>. But IE will display <embed> too, putting two on the page.

The "old school" method of cross browser support is to include the embed tag inside the object tags, like


This is how Macromedia and Adobe "publish" the code to this day.

Unfortunately, it's invalid HTML.

The most graceful way I've found, and will allow you to validate: swfObject [code.google.com]. Simple to implement, it displays alternate content first so if JS and/or Flash is disabled, you still get a layout and content. If enabled, swfObject writes the Flash to the element. Best of both worlds.


10:51 am on Nov 26, 2009 (gmt 0)

5+ Year Member

Hi rocknbil, sorry about posting my link I should have read the TOS first.

Thanks very much for the info. I've implemented swfObject ver 2 and works a treat on all browsers, tried uninstalling Flash and all the scripts and links worked great too. Thanks again!


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