Rated 5 out of 5 stars

It is the best known way to make links what they looks like on google and other sites. I use it in firefox for linux. Works great and for couple of other useful actions.
I see two problems - the first is that sometimes in youtube the little pictures of the videos are not shown when they are not on the visible page, but with refresh they appear.
The second one is that tooltips appear and disappear too fast when mouse briefly goes over links. Sometimes Firefox loops in hide/unhide them with 100% CPU load until it is restarted. If only there was option for that speed this add-on would be the best.