Not just was Netscape, Mozilla was straight up founded by Netscape people https://en.m.wikipedia.org/wiki/Mozilla

On January 23, 1998, Netscape announced that its Netscape Communicator browser software would be free, and that its source code would also be free.[4] One day later, Jamie Zawinski of Netscape registered mozilla.org.[5] The project took its name, “Mozilla”, from the original code name of the Netscape Navigator browser—a portmanteau of “Mosaic and Godzilla”,[6] and used to coordinate the development of the Mozilla Application Suite, the free software version of Netscape’s internet software, Netscape Communicator.[7][8] Zawinski said he arrived at the name “Mozilla” at a Netscape staff meeting.[9] A small group of Netscape employees were tasked with coordinating the new community.