Some users were disappointed with the release of Mozilla Firefox 2.0. After months of betas, release candidates and previews, the new features weren’t as spectacular as people expected. However, there is only so much you can do to improve a web browser.

With the forthcoming release of Mozilla Firefox 3.0, now planned for mid 2008, the web graphics rendering engine will receive a completely new upgrade. Dubbed ‘ Cairo’, the new graphics rendering engine should improve the output across different platforms, as it’s being developed as an open-standard (see http://wiki.mozilla.org/Cairo). Mozilla Firefox 3.0 will also be based around the forthcoming Gecko 1.9 rendering engine.

With other improvements in the way that pages are ‘painted’ on screen, improved SVG support and CSS enhancements, the general improvements for Firefox 3.0 are based around the way it will render web pages through the browser.

Note that further improvements and new features will be included within Firefox 3.0 as it is being developed. This 3.0 beta 5 (dubbed “Gran Paradiso”) is the fourth public preview.

This beta 5 contains limited additional features and fixes issues found within the previous release.

Note That this is the portable version of Firefox 3.0 RC1.