The recent change to collapse the breadcrumbs made the hovering very twitchy and hard to hit crumbs.
There are some other changes that can be made to better collapse and compact crumbs.
Created attachment 17301 [details]
Comment on attachment 17301 [details]
I think it would be less confusing to talk about "child" and "ancestor" crumbs instead of "right" and "left".
+ // When not focused on a crumb we can be biased and collapse less import
Typo: import -> important
Landed in r27827. http://trac.webkit.org/projects/webkit/changeset/27827