How to make Dock less sensitive I am having a problem with the Dock popping up when I have my mouse near the bottom.  Before, the Dock would pop up when the mouse was at the very bottom.  But the current behavior makes it difficult to access things like tabs on a spreadsheet because the Dock comes up and covers them.  What is to be done?
Try following in Terminal to adjust the Dock behavior.

defaults write com.apple.dock autohide-time-modifier -float 0.5


compliment that with killall Dock to make it active.

The number at the end is in seconds (delay) so choose what it suits you.

To return to original settings use

defaults delete com.apple.Dock autohide-time-modifier