Of course, a fuller picture of what's new can be found in the aforementioned release notes, but the lads behind the code are specifically seeking comment on the following, which just happen to be new features:
• Web standards improvements in the Gecko layout engine
• Added support for CSS 2.1 and CSS 3 properties
• A new tab-switching shortcut that shows previews of the tab you’re switching to
• Improved control over the Smart Location Bar using special characters to restrict your search
• Support for new web technologies such as the "video" and "audio" elements, the W3C Geolocation API, JavaScript query selectors, web worker threads, SVG transforms and offline applications.
Get your copy of Firefox 3.1 beta 1 here (17.2MB).
Editor's note: I could be wrong, but it doesn't appear that prøn mode (private browsing) made it into this release...
