Mozilla Firefox 53 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 2017-04-19 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

With Firefox 53, Mozilla dropped the support for Windows Vista and previous editions to reduce the performance bottlenecks, however security updates will still be available for those users who has installed 52. 

With this edition Windows 7+ users who has 64 bit OS editions can have the option to choose Firefox 32 or 64 Bit editions during installation.

With the support from Quantum Compositor, Now Firefox has improved Graphics stability. Developers introduced light weight themes for better performance and the private browsing are by default has light weight theme.

In the user interface this edition fades the characters in the tab title rather than replacing it with ellipses. In the multimedia interface new audio and video controls have been introduced.