"For Web developers, supporting the Netscape browser has become
a thankless chore."
"There are two of them now. The creaky 4.x browser, which still
has significant (but diminishing) market share, offers only a
1997-era glimpse of what CSS, DOM, and DHTML have become. Its
rendering engine fails dramatically on complex, table-heavy
pages.The rewritten Mozilla browser, with negligible market
share, makes great improvements in all these areas. But it has its
own quirks, and developers won't want to sort these out until and
unless there's demand."