text-overflow: ellipsis. If text is too long to fit into a given box, this CSS setting cuts it off with a nice triple dot.
WebSockets are back: with an updated (more secure) version of the protocol. They are now enabled by default on Firefox for Mobile.
Canvas speed improvements.
Restrictions on a site’s ability to resize the current window:
A site can only resize a window or a tab if it was created by window.open().
A site cannot resize a tab it it’s in a window with more than one tab.
That’s a good one. Apps that resize a window with several tabs in it are a major nuisance. It’s just incompetent programming: Instead of opening a new window and then resizing it, just give it the right dimensions from the start. The above rules should put an end to this kind of shenanigans.