Although Firefox 4 RC was delayed from the originally planned release, it is now available for download. As announced on the Mozilla Blog:
Mozilla Firefox 4 for Windows, Mac and Linux has exited the beta cycle and is now available as a release candidate in more than 70 languages. The millions of users testing Firefox 4 will be automatically updated to this version and will join our Mozilla QA team in validating the new features, enhanced performance and stability and HTML5 capabilities in Firefox 4. Testers are encouraged to check out the Web O’ Wonder in order to see the future of the Web with cutting edge demos that showcase the incredible online experiences developers can now create and users can experience. Developers can submit their own demos to the Mozilla Developer Network Demo Studio.
Before you rush to update, please note that Mozilla urges users to update graphics drivers for Firefox 4
"To prevent crashes, Mozilla created a list of graphics drivers that Firefox 4 reads; if a driver is on the "blocklist," the browser disables hardware acceleration."
"Jacob said that Windows users must have a "very recent driver" if their machine sports an Intel graphics card; version 257.21 or newer for Nvidia cards; and version 10.6 or newer for AMD's ATI-branded cards."
The complete blocklist is available in the Mozilla Wiki, linked below.
- Blocklist: Blocklisting/Blocked Graphics Drivers - MozillaWiki
- Download Firefox 4 RC
- Learn more about the features
- Firefox RC Frequently Asked Questions
- Release Notes
- Change List