OK so I'd been using the random generator at  Wolframtones to cook up  midis as a starting point fo rmusic, including nearly all my contributions to the soundtrack for Kirastar: The Polybius Problem, a game i've been involved in.. But the newest verison of Quicktime'-one of the required programs- doesn't seem to be recognized by the site, though the previous version is. I''d really like not to have any security holes but it's also frustrating not to be able to use the program. I've writtne Wolfram giving feedback and asking them to pupdate the site's compatibilty, but don't know if they will and would like advice here...

It's not opening the that's the problem, but creating them. Wolframtones uses math- procedural generation?- to randomly  generate midis in my browser using the parameters I specify, and unlike 'Music Mucker' it can be any type  or time pattern. I find it quite useful as a starting point for game music. Currently the website,which requires both Quicktime and Java, works wiht QT versions up to 7.6, but after installing the newest, version 7.7,  the site  asks for the quicktime plugin even though it's already installed; even if I've removed npqt.dll and restarted to clear possible corruption(something that can happen when using the progrma in Firefox) i get he mseeage. Of course firegfox and avast also compian about vilnerablities if I use the older version.
I've writtien to MAthematica asking the yupdate the program, but it may be a while before they do so. For right now I'm gingerly going back to 7.6, but wish I didn't have to.

sounds like you fixed it

Avast software updater says it's a critialc vulnerablilty, and i don't want that risk, so i updated it. The question is what to do now. Does anyone know if Quicktime Alternative can be used along wiht Quicktime?