Mozilla Firefox 20 is a web browser developed by Mozilla Foundation , available for download in full install version for Windows platforms from legacy sources. This version of Firefox was officially released on 2013-04-02 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Firefox 20 is a milestone in its release history with addition of Private Browsing and all new download UI. Private browsing lets you browse and do not store any of your history till the session is closed. There is an added advantage is websites can not track your profile.

Download option has a new interface and ability to manage your downloads through settings. You can define your default download folder or let browser ask every time for a folder location before download starts. You can also pause, resume and delete download while it progress.

This edition has much more control on usage of plugins and you can terminate a malfunctioning plugin with out closing your browser. This edition has much more improved performance in page load, download and shutting down of browser application.