3 ms·

box-shadow and the transitions make it extremely slow on FF: https://twitter.com/mrdoob/statuses/262526881813917696 https://twitter.com/mrdoob/statuses/26252688

• padenot 14y ago
  To be specific, the rework of the blur algorithm (which is a key part for rendering an element that has a {box,text}-shadow) is bug 509052 [1]. [1]: https://bugzilla.mozilla.org/show_bug.cgi?id=509052 https://bugzilla.mozilla.org/show_bug.cgi?id=509052