I loaded the page, went to Firebug script panel, set a breakpoint on the line of javascript, hit F5, when the breakpoint got hit, I just hit escape to prevent i

I loaded the page, went to Firebug script panel, set a breakpoint on the line of javascript, hit F5, when the breakpoint got hit, I just hit escape to prevent it from running. Then, Ctrl-U as usual. Chrome is broken on my machine (proxy issues) so I didn't test there, but I assume the same technique would work.