> ... on August 16, 1999 that [Lars Knoll] had checked in what amounted to a complete rewrite of the KHTML library—changing KHTML to use the standard W3C DOM as

> ... on August 16, 1999 that [Lars Knoll] had checked in what amounted to a complete rewrite of the KHTML library—changing KHTML to use the standard W3C DOM as its internal document representation. https://en.wikipedia.org/wiki/KHTML#Re-write_and_improvement https://en.wikipedia.org/wiki/KHTML#Re-write_and_improvement > In March 1998, Netscape released most of the code base for its popular Netscape Communicator suite under an open source license. The name of the application developed from this would be Mozilla, coordinated by the newly created Mozilla Organization https://en.wikipedia.org/wiki/Mozilla_Application_Suite#History_and_development https://en.wikipedia.org/wiki/Mozilla_Application_Suite#Hist... Netscape Communicator (or Netscape 4) was released in 1997, so If we are tracing lineage, I'd say Firefox has a 2 year head start.