Scott writes: I’m stumped about something in Mail. The tooltips (those yellow boxes that pop up when hovering over a link or a graphic) are annoying and I’d like to turn them off. Googling has unveiled many a hint about disabling those tooltips in web applications, e.g., Safari and Firefox, but nobody seems to have determined an easy way to do the same thing within Mail.
Scott, this took a little digging and what we found (with a big hat tip to this Macworld article) was that although you can’t disable the tooltips, you can adjust the delay before one is shown by tweaking the NSInitialToolTipDelay parameter. either in general or for a particular app (Mail, in this case). The default is 1 second, or 1000 milliseconds. If, for example, you want to extend Mail.app’s tooltip delay to 10 seconds (10000 milliseconds) you’d issue the following command from the terminal:
defaults write com.apple.mail NSInitialToolTipDelay -int 10000
Hope this helps, Scott. More details are found in the Macworld article, too.