I love Safari. It's elegant and fast. It works with all Web sites except minor ones like FACEBOOK. What the devil has WebKit done to screw up Safari's functionality? Worse, every WebKit nightly release fixes one problem and creates another.
Gecko handles Facebook beautifully. Why should customers have to accommodate themselves to Safari's quirks? Until Safari is fixed—really fixed—Firefox, as clunky as it is, will have to do.