The first beta release of the much-anticipated Firefox 3 Web browser offers some nice enhancements over the previous version, such as additional security and new tools for storing and accessing bookmarks and browsing history, but it doesn't differ much from Firefox 2 in looks or functionality.

Most of the changes expected in version 3 (due for final release in early 2008), such as stability and performance enhancements for the Gecko 1.9 rendering engine, will be under the hood and weren't apparent in the beta we tested. Most of the work for the new Places feature, which stores bookmarks and history in a database instead of in regular HTML files, is likewise invisible.

A few nice, though not earth-shattering, additions do reveal themselves. A new star icon next to the site URL allows for quickly adding new bookmarks; click it once to add a bookmark to the default folder or twice to choose the destination. You can also add tags to your bookmarks and then view them by those tags, or easily create bookmark backups that you can copy to other computers.

Mozilla is also working on a number of security enhancements.

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