He forgot to mention that it wasnt a "great" product, they left us frontend developers with several headaches.
My team at the time held contests to find the shortest html that would crash Netscape. There was a hallway at the office with over 100 Netscape crashers printed out and pinned to the wall.
By the time ie5 was released, almost 1/3 of the frontend code existed to work around netscape bugs. It was standard for us to fingerprint point releases of netscape to work around bugs.
You can still see remnants of some of it online, eg this
http://old.macedition.com/cb/nn4crashers/index.html
We were early to the idea of shipping professional apps via the browser, and it was a choppy beginning.