premise: Netscape Navigator was rejected by a subsidiary of AOL.
hypothesis: Netscape Navigator . This was primarily due to the increased usage of Microsoft 's Internet Explorer web browser software , and partly because the Netscape Corporation ( later purchased by AOL ) did not sustain Netscape Navigator 's technical innovation after the late 1990s . The Netscape Navigator name returned in 2007 when AOL announced version 9 of the Netscape series of browsers , Netscape Navigator 9 .