Mozilla starts planning on Firefox 3.1

Like we said last week, the final Firefox 3.0 release is scheduled to hit the web tomorrow. However, Ars Technica reports that Mozilla has already began planning out the next major update to its popular browser: Firefox 3.1.
This next release is still said to be in the "early stages of planning," but a Firefox 3.1 planning page is already up on the Mozilla wiki, and developers have begun laying out a feature list. Among the features expected in the next release, we see tab previews, a revamped tagging user interface, an "advanced" search interface, and bulk tagging support. Firefox 3.1 will also feature the Gecko 1.9.1 rendering engine, which Ars says will bring support for HTML 5 video and a CSS text shadow setting.
Judging by the schedule in the Mozilla wiki, the first Firefox 3.1 alpha release should materialize in mid-July.