Hi lordmmx, I can't tell you anything official, but I'm doubtful Mozilla will produce a build of Firefox for Haiku, because in my perception, resources are stretched already.

Since it is an open source code base, someone who know how to adapt Linux software to Haiku certainly could take a stab at it.

What is your opinion of the included browser, WebPositive?

webpostive is not what i'm looking for. prefer firefox.

Are you involved with the Haiku community? I think someone there needs to make it a priority for anything to happen.