Yeah, I'm gonna wait a bit before bringing out the pitchforks.
A plaintiff in a civil suit can allege anything they want, but that doesn't mean they're being 100% truthful. Any lawyer will slant the facts as much as possible to make their client look as injured as they can to garner the most sympathy- that's just lawyering 101. We have his version of events but don't have Mozilla's, but the fact that he's publicly shit-talking the company (rather than let the legal process play out) doesn't cast him in a good light IMO.