It is most likely Adobe Flash that you need. Unfortunately, Firefox for mobile does not support flash, yet. that will be changing soon in Firefox 13 for Mobile. [http://www.mozilla.org/en-US/mobile/13.0a2/auroranotes/ http://www.mozilla.org/en-US/mobile/13.0a2/auroranotes/] and [https://bugzilla.mozilla.org/show_bug.cgi?id=687265 https://bugzilla.mozilla.org/show_bug.cgi?id=687265]. Hopefully this will be released in the next few months, or you can try the Aurora build!