save to devonthink script question

I’ve just started using the DT Pro Beta, and I noticed that the ‘Save to DEVONthink Pro’ script often doesn’t prompt me for a filename (at least not from FireFox). Is this to be expected? I seem to recall DT PE always popping up a dialog box asking me what to name the pdf when I save it directly into DT. As I recall, this even worked in FireFox, where it no longer seems to work. Any thoughts?