Estaba releyendo el artículo y me parece que se olvida de una cosa en la transición de Netscape a Firefox y es que antes de Phoenix yo recuerdo una "Suite Mozilla" que venía con un cliente de correo también y traía el icono del gozilla colorao. Creo que fue a partir de ahí que separaron la parte de navegador y la convirtieron en Phoenix:
"According to the Mozilla development roadmap published on April 2, 2003, the Mozilla Organization planned to focus development efforts on the new standalone applications: Phoenix (now known as Mozilla Firefox) and Minotaur (now known as Mozilla Thunderbird). To distinguish the suite from the standalone products, the suite is marketed as "Mozilla Suite" or the more lengthy "Mozilla Application Suite"."
"According to the Mozilla development roadmap published on April 2, 2003, the Mozilla Organization planned to focus development efforts on the new standalone applications: Phoenix (now known as Mozilla Firefox) and Minotaur (now known as Mozilla Thunderbird). To distinguish the suite from the standalone products, the suite is marketed as "Mozilla Suite" or the more lengthy "Mozilla Application Suite"."
en.wikipedia.org/wiki/Mozilla_Application_Suite