Mozilla Firefox 15 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 2012-08-28 for public access and a brief summary of important updates and change log pertaining to this edition can be read below.

Firefox 15 has been released with new functionalities like silent backround updates, enabled SPDY/3 protocol, enhanced WebGL for better compression of textures, and Maihili locale addition.

In the HTML5 elements section Opus Audio codec has now native support and enhancing played attribute support for Multimedia files.

There are still many bugs unfixed including Firefox crash during locked profile start, Gmail slow response, Firefox update breaks Windows System restoration, and Debugger break points not catching during page reloads.