chrisyzfr6, I have used WaterFox 64 since I first saw it listed on MajorGeeks this past spring/summer?  I've had no problems with it and it behaves as if it were FireFox 32, in my mind.  Every once-in-awhile, it'll consume the HD for a short period.  It shows a message at the top of the page, "WaterFox is not responding".  It is short-lived.  I figure that it's just my single-core processor.  Ha!