Transfire
A browser made by Illiayson Technologies. Transfire is the successor to kCelia, developed by James Garamond. It holds a commanding 70% of the browser market, which has stayed fairly steady for the last 15 years. The key to its power is of course the Porting interface, to which it owns worldwide patent rights. To say it enforces those patents aggressively would be an understatement. Several software companies releasing similar products in the years after Transfire emerged were forced into bankruptcy by the legal proceedings.
Transfire's newest features include advances to the Porting mechanism, as well as form auto-completion, habit guessing and a new parental control feature that intelligently masks potentially offensive material. The major competitors to Transfire, mainly open-source variants with similar-but-not-identical features, tend to offer cutting-edge technology ahead of what Illiayson can produce, but without the Porting feature, can't command any great force within the industry.