"On July 15, 2003, Time Warner (formerly AOL Time Warner) disbanded Netscape. Most of the programmers were laid off, and the Netscape logo was removed from the building."

Peak Netscape was 1996. By 2003, they had already handed development off to Mozilla, and Netscape the browser was just a thin veneer over Mozilla's browser.

By 2007, it was just Mozilla with AOL branding and almost all of it's users were people still using AOL in 2007.

Back in the naughties, testing a web page with Netscape seemed miraculous because if it rendered correctly with a PC, chances are it would with a Mac, and with Linux.

Microsoft didn't care about standards. If a page rendered incorrectly in other browsers than Windows MSIE they didn't care (even if it was Mac MSIE).

But that difference wasn't enough to save Netscape because, as a web browser, Netscape was a bloated mess.

When Firefox came along, it was popular with web designers, for the same reasons as Netscape was - but its streamlined design catered to regular users.