Hehe. I don't work with the Mozilla project, but I use their browser as it's superior to Internet Explorer. Opera is a good alternative, but I find Mozilla to be the best one, especially the new Firebird.
I do, though, which was why I was asking. I was wondering if I missed it.

Ok, thanks. I've already tried to place the visualizations into the %XMPlayDir%\Vis\-folder, but there are still no visualizations available in XMPlay. I've tried to put the .svp-files into seperate folders underneath "Vis", directly into the "Vis"-folder, and into the %XMPlayDir% folder as well. Nothing works.
And also worth mentioning; I can't find that <b>any</b> of the visualizations I've downloaded have an installer bundeled with them. All the .zip-archives include, is a .svp and .txt file, and the .svp file aren't registered as anything in Windows and thus can't be opened.
Where can I find these installers, and what have I done wrong?
No installers. Just unzip the contents into the Vis folder. Since Rappa requires visualizations (which is what the .SVPs are; they're Sonique visulizations) to be in individual directories, I put them in directories named after the .ZIP files. For example, visulization FOO available in the archive BAR.zip from the Support Site would be located at: %XMPlayDir%\Vis\BAR\FOO.svp
The visulizations are activated by selecting them from a right-click context menu in the Visulization pane (F4 is the hotkey, I believe).
If what I said is confusing, I believe the Support Site does a much better job of explaining this.
The installers I spoke of are for input plugins
only.