wow, the quicktime plugin installation routine in chrome is pretty horrible, then it hung for about 10 seconds. arg!
to detail:
visit website, get yellow bar for missing plugin
install plugin
reload tab
browser hung for a bit
told plugin was out of date, clicked update
got sent to apple site to download new version
downloaded binary, uac checks etc
update went ahead, then asked to close all my quicktime applications, of which chrome is now one, nope, clicked cancel.
advised that installation would continue but a reboot would be required
gave up, clicked cancel
informed installation was complete.