One thing I was thinking was that we could stick `if(Mobify.capturing) {} else {FF.patchAll()}` in Capturing itself - but the lame part about that is if someone included Mobify.js in their site, but didn't use Capturing, then the FF patch would be unnecessarily implied.

I think the "best" solution solution here is to inject an inline script into the capturedDoc that calls FF.patch() so that it executes post-flood. I'd also prefer that we only inject it if we see FF, instead preventing it from doing anything if its not FF in the function itself.