Mavericks is the buggiest POS OS since 7.5.2

[Black]

Maybe that console message doesn't relate to the freeze.
I got the same one just now when I went back to the page that caused the freeze (absolutely no problem this time.)

4/23/14 6:47:50.074 PM plugin-container[479]: CoreText performance note: Client called CTFontCreateWithName() using name "Times Roman" and got font with PostScript name "Times-Roman". For best performance, only use PostScript names when calling this API.
4/23/14 6:47:50.074 PM plugin-container[479]: CoreText performance note: Set a breakpoint on CTFontLogSuboptimalRequest to debug.