Firefox isn't any more secure than IE, you'll learn it soon enough now that it's becoming popular and more worthwhile to attack. It's equally vulnerable, just less profitable target. The latter is changing, the former is staying.
The very fact that IE uses ActiveX controls makes it more vunerable.
SVG support in IE would be really nice, though. I'd love that.
You can download an add-on to use SVGs in IE but I'm not going to show you as I'd be breaking the forum rules by helping someone with a Microsoft product. :p
Oh, and activeX could in theory be secure, too, but that's only theory. Wanna bet microsoft will reimplement the whole activex deal with .NET, and it'll actually be secure this time?
Well we'll just have to see about how secure ActiveX is under .NET when they release it. Hopefully if IE's market share is low enough people won't bother using ActiveX controls on their websites anyway - they'll be replace by the far superior Javascript applets.
Hang on, if ActiveX will be implemented under .NET and .NET will be portable does this mean that ActiveX controls will no longer be IE only?
If Microsoft really wants to make ActiveX controls on the web a success then they'll have to become multi-platform even if the developer tools remain Windows only.