[hasenj]

This interpretation entails that IE will live on and become Spartan

[integraton]

Except that Netscape was open sourced years before it became Firefox.

That happened January 1998, which was 17 years ago, and 4 years before Firefox was released, which itself was over 12 years ago.

[have_humility]

March 1998, and it underwent a pretty well-publicized rewrite as well... Firefox is not built on top of what was released back then (Communicator 4.x); it's built on top of its rewrite.

[yuhong]

Ah, the fiasco that was the Mariner cancellation.