Mozilla Firefox 5.0 Will Be Released on June 21, 2011,Download BETA 5

New Mozilla Firefox 2011

Mozilla has released a public Beta version of Firefox 5.0 which can be downloaded using following link:

Download Link

This release includes the Firefox channel switcher, performance and stability enhancements and support for the new CSS Animations standard to allow developers build more amazing Web experiences. The new Firefox channel switcher lets users move between Firefox Aurora, Beta and Release channels to test features at various levels of development, quality and polish.
Mozilla Wiki page shows that Firefox 5.0 will be released on June 21, 2011. The page clearly mentions:

Firefox 5: currently in BETA channel, moves to RELEASED on June 21, 2011

Along with Firefox 5.0, Firefox 5 for Mobile, Firefox 3.6.18 and Thunderbird 3.1.11 are also set to release on the same date.