Mozilla Firefox 13 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 2012-06-05 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Firefox 13 has been released with new functionalities in user interface improvements like displaying most visited pages while opening new tab, and quick access from home page to bookmarks, history and settings.

The changes in this edition include default smooth scrolling, fast startup with restored tabs, and speedy browsing for SPDY enabled websites.

Unfixed bugs in this release are Firefox crash with locked profile start, Gmail slow response, Microsoft System Restore function stop after browser update, and Multidisplay setup errors in Mac editions.