This extension provides navigation like the Vimperator Hint Mode of Firefox.
The interface has the following flow.
 1. pop-up tip about the matched point for some action which user want.
 2. do some action for the user selecting.

For detail, see <https://github.com/aki2o/emacs-pophint/blob/master/README.md>
For configuration, see Configuration section in <https://github.com/aki2o/emacs-pophint/wiki>

Enjoy!!!