Mozilla has released Beta 2 of Firefox 4 for Mobile. Some notable improvements over the initial beta release include 'reduced memory usage, improved text rendering and a 60% install size reduction on Android (from around 43 MB to 17 MB).' Mozilla also makes mention that 'actions like panning and zooming are faster and smoother, and page load times are reduced from our previous beta. On Android 2.2, we're now around 25% faster on the SunSpider JavaScript benchmark than the stock browser.' A future beta release will enable GL acceleration, which should further improve the performance of the browser.