<i>But what they did to destroy netscape (bundling a competing app with some other thing)</i><p>One other point worth remembering: their browser, at least by version 3, was superior in speed and <i>vastly</i> superior in stability.  They also ushered in the modern era of web applications by inventing XMLHttpRequest (<a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;XMLHttpRequest" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;XMLHttpRequest</a>).<p>Netscape destroyed itself as much as Microsoft helped them by incompetence in developing software, server as well as browser.  A common pattern in the &#x27;90s was Microsoft&#x27;s competitors losing their ability to develop mostly working software while Microsoft didn&#x27;t.  That sealed the fate of Lotus, WordPerfect, Netscape, and Ashton-Tate (dBASE), and Borland did themselves no favors by buying the latter.