Firefox 53.0.3


Mozilla Firefox is a fast, full-featured Web browser. It offers great security, privacy, and protection against viruses, spyware, malware, and it can also easily block pop-up windows. The key features that have made Mozilla Firefox so popular are the simple and effective UI, browser speed and strong security capabilities. Firefox is built on top of the powerful new Gecko platform, resulting in a safer, easier to use and more personal product.

Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.



  • FIx hangs when using a proxy with NTLM authentication (bug 1360574)
  • Fix excessive resource usage from the captive portal detection service (bug 1359697)


  • Bump preloaded security information expiration times (bug 1364240)

Download: Firefox 53.0.3 for Windows | Firefox 64-bit | ~50.0 MB (Freeware)
Download: Classic Theme Restorer (Customize Australis)
Download: Firefox 53.0.3 for Linux | 64-bit | ~55.0 MB
Download: Firefox 53.0.3 for MacOS | 55.7 MB
View: Firefox Home Page

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