Firefox + WMP + frames = poopie

I'm working on a project that uses Windows Media Player and Firefox
is not playing along. We are creating a video player skin that has two
IFRAMEs. WMP issue script commands at set times which load content in
the IFRAMEs. This works pefectly in IE and Firefox in WMP 6, but in WMP
10, Firefox doesn't load the content into the frames. It just launches
new windows everywhere.

Apparently it's a Gecko bug that no one wants to fix. I've asked about it in MS's WMP usenet group, but no one could produce any workaround code. There's a bunch of legacy/non-standard stuff that kind of works in NS 7.1 (here and here), but it's useless in Firefox.

If anyone knows how to fix this, I'd love to hear about it.