Submitted for testing; the main content rendering is now XULRunner-powered rather than wxHTML-powered. The only implication I found (my brother Jon took care that BPBible cleans up its own temporary XULRunner profiles and other things) is that it creates $APPDATA\Mozilla if it doesn't exist, so the launcher then prunes it after. I've also switched the launcher to PAL and I believe we've got all the functionality in the BPBible launcher included (one of the challenges I had with PAL, so that by the time 2.0 it was capable); BPBible's launcher is one of the more complex ones due to its handling of resources).
This release doesn't deal with directory moving; there are some deficiencies in PAL's current way of dealing with it which I'd like to deal with first.
Download BPBible Portable 0.5 Beta 4 [24MB download / 22.6-32.1MB installed]