philc/vimium — pull request #945 by shyiko (2013-10-28 20:16:42+00:00)
Title: Fixed detection of links which are only partially inside the viewport

The best way to demonstrate this issue (at least the way I see it) is to open http://simonwhitaker.github.io/github-fork-ribbon-css and try to navigate links with "f". Before the fix only 1 out of 4 ribbons is detected.