Mozilla has already made available for download two preview releases of the upcoming development milestone for Firefox 4.0.
Early adopters can now grab and start testing 4.0b11-candidates, which are essentially pre-Beta 11 nightly builds of Firefox 4.0.
Users should be aware that there are just candidate releases of Firefox 4.0 Beta 11 and not the fully-fledged eleventh Beta of the upcoming major version of Mozilla’s open source browser.