Mozilla Firefox has released it Firefox 4 Beta for Android phones and Memo. So now you can go ahead a test the new features of the browser.Firefox has concentrated on performance and responsiveness as prime area of focus. Firefox 4 also adds “Firefox sync” by which you can do fast switching between your mobile phone and desktop/laptop. All the browsing history, settings, bookmarks, tabs, forms and passwords are synced between your phone and pc. Another great thing is that the sync between these devices are secured and encrypted. Firefox 4 has added two architectural features Electrolysis and Layer. Thus making it a super fast browser. Firefox 4 also supports latest browsing technologies like CSS, Java script, HTML 5 etc which makes the browser compatible for numerous numbers of mobile apps and add ons.

Firefox developers are asked users to check/test this new browser in order to develop a full stable version.

You can download here: Firefox 4 Beta for Mobile

You can read more about this in Firefox official blog: Firefox Official Blog