Assuming netscape is required, the following result was found.
1992 ViolaWWW, Erwise, MidasWWW, MacWWW 1993 Mosaic, Cello, Lynx 2.0, Arena, AMosaic 1.0 1994 IBM WebExplorer, Netscape Navigator, SlipKnot 1.0, MacWeb, IBrowse, Argo, Minuet 1995 Internet Explorer 1, Netscape Navigator 2.0, OmniWeb, UdiWWW, WebRouser,...