Changes to tabbed browsing, extended search plugin format...
New in 3.0 Beta: Beta 5 includes more than 750 changes from the previous beta, improving stability and web compatibility, providing platform and user interface enhancements, and resulting in the fastest Firefox ever (Beta 5); approximately 1300 individual changes from the previous beta in Beta 4, including fixes for stability, performance, memory usage, platform enhancements and user interface improvements (Beta 4); one-click site info; malware Protection; Web Forgery Protection page; new SSL error pages; new Download Manager; major performance tune-ups; various other enhancements and fixes for earlier releases; Release Notes - Last Updated: 04.03.08 (v3.0 Beta 5)
Upgrade Meter:3Note: Some of the changes in Gecko 1.9 Alpha will affect the Web and platform compatibility of Mozilla 3.0 Beta, resulting in Windows 95, 98, and ME, and OS X 10.2 no longer being supported
New in 3.0 Beta: Built on the new Gecko 1.9 Web rendering platform, which nearly 2 million lines of code changes, fixing more than 11,000 issues and featuring major re-architecting for performance, stability, correctness, and code simplification and sustainability, resulting in "a more secure, easier to use, and more personal product with a lot under the hood to offer website and Firefox add-on developers"; built-in malware protection; support for Mac OS X 10.3 (Panther) removed (Gecko 1.9 will no longer build or run on Mac OS X 10.3); updated SQLite engine to version 3.3.17; improved cookie performance; support for Animated PNG (APNG) files; various other enhancements and fixes for earlier releases; Release Notes - Last Updated: 12.19.07 (v3.0 Beta)
Upgrade Meter:3Note: Some of the changes in Gecko 1.9 Alpha will affect the Web and platform compatibility of Mozilla 3.0 Beta, resulting in Windows 95, 98, and ME, and OS X 10.2 no longer being supported
New in Bon Echo Alpha 3: Built-in Anti-Phishing protection, support for client-side session and persistent storage, search suggestions now appear with search history in the search box for Google and Yahoo! (Alpha 3); links default to opening in new tabs (not new windows), inline spell checking in text boxes, close buttons now appear on every tab, automatic restoration of your browsing session if there is a crash, search suggestions now appear in the search box autocomplete for Google and Yahoo! (Alpha 2); new search plugin manager for removing and re-ordering search engines, improved support for previewing and subscribing to web feeds, new microsummaries feature for bookmarks, new Add-Ons manager improves the user interface for managing extensions and themes, new search service that supports Sherlock and OpenSearch engines; various bug fixes; Release Notes for Alpha 3 - Last Updated: 05.30.06
New in Bon Echo Alpha 1: Changes to tabbed browsing behavior, new data storage layer for bookmarks and history (using SQLlite), extended search plugin format, updates to the extension system to provide enhanced security and to allow for easier localization of extensions, support for SVG text using svg:textPath, various bug fixes; Release Notes - Last Updated: 11.20.07 (v3.0 Beta 1)
New in Deer Park Alpha 2: Software update system to streamline product upgrades (currently disabled– will be turned on shortly for testing), faster browser navigation (improved back and forward button performance), drag-and-drop reordering for browser tabs, improvements to popup blocking, better support for Mac OS X (Safari profile migrator, Aqua compliancem, and shell service), several security enhancements; Release Notes for Alpha 2 - Last Updated: 07.13.05
New in Deer Park Alpha 1 (vs. Mozilla Firefox v1.0.x): "Sanitize" feature (quick and easy way to remove browsing history, cookies, cache, saved form information, and other personal data), image thumbnails as tab icons, fast back/forward feature,
scalable vector graphics format (SVG) support (technology preview), XForms support, ECMAScript for XML (E4X) Mozilla JavaScript engine support, various other Web Developer enhancements, searchable download actions manager and cookies manager, @-moz-document rule (gives users the ability to match page objects per-site, using CSS), report a broken Website wizard, Release Notes for Alpha 1 - Last Updated: 06.11.05 Pros: