Mozilla released the final stable version of Firefox 20 for both Desktop and Android platforms. The new Firefox update features a new minimalistic, streamlined, panel-based download manager, along with H.264 decoding on the 'video' tag, and per-window private browsing (per-tab private browsing on Android). Apart, from these new features the update features performance improvements around common browser tasks (like page-load, downloads and shutdown), improved HTML5 support and bug-fixes. Do watch the video demonstration of the new "toolbar integrated" download manager and per-window private browsing feature with download links posted after the image below.