Mozilla Corporation’s free and open-source web browser, Mozilla Firefox gets a new stable release, Firefox version 48.0.2, which includes new features, fixes and more.

Firefox is a fast, full-featured Web browser, which includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, and many additional features.

Firefox v48 1

Made with a mission to put you first
We’ve always designed Firefox to protect and respect your private information. That’s why we’re proud to be voted the Most Trusted Internet Company for Privacy.

Works the way you do
How you use the Web is unique. Firefox lets you change it to match. Remove what you don’t use, keep what you do and put it just about anywhere you want.

Faster at what you do most
Firefox was named the ”speed king” in independent benchmark and performance tests against other browsers. Save time and do just about anything quicker than before.

What’s new in Firefox 48.0.2:


  • Mitigate a startup crash issue caused by Websense (Windows only) (Bug 1291738)

What’s new in Firefox 48.0.1:


  • Fix an audio regression impacting some major websites (bug 1295296)
  • Fix a top crash in the JavaScript engine (Bug 1290469)
  • Fix a different behavior with e10s / non-e10s on <select> and mouse events (Bug1291078)
  • Fix a top crash caused by plugin issues (Bug 1264530)
  • Fix an unsigned add-ons issue on Windows
  • Fix a shutdown issue (Bug 1276920)
  • Fix a crash in WebRTC

What’s new in Firefox 48.0:


  • Process separation (e10s) is enabled for some of you. Like it? Let us know and we’ll roll it out to more
  • Roar for moar protection against harmful downloads! We’ve got your back
  • Add-ons that have not been verified and signed by Mozilla will not load
  • GNU/Linux fans: Get better Canvas performance with speedy Skia support. Try saying that three times fast
  • WebRTC embetterments:
    • Delay-agnostic AEC enabled
    • Full duplex for GNU/Linux enabled
    • ICE Restart & Update is supported
    • Cloning of MediaStream and MediaStreamTrack is now supported
  • Searching for something already in your bookmarks or open tabs? We added super smart icons to let you know
  • Windows folks: Tab (move buttons) and Shift+F10 (pop-up menus) now behave as they should in Firefox customization mode
  • Windows 7 systems without Platform Update can now use D3D11 WARP
  • The media parser has been redeveloped using the Rust programming language


  • Various security fixes
  • Heyo, Jabra & Logitech C920 webcam users. We fixed those pesky WebRTC bugs causing frequency distortions. Buh-bye, squeaky voice!
  • Improved step debugging on last line of functions


  • After version 48, SSE2 CPU extensions are going to be required on Windows
  • Starting with the Firefox version 49 release, so long to support for 10.6, 10.7 and 10.8. Now we can focus on where most Mac users are: 10.9. Don’t forget to upgrade!
  • Au revoir to Windows Remote Access Service modem Autodial


  • WebExtensions support is now considered as stable
  • Workers can now use the Web Crypto API
  • Want to move absolute & fixed positioned elements? (Who doesn’t, right?) Now you can with our geometry editor.
  • The memory tool now has a tree map view for your debugging pleasure. It’s a little bit of “boo” and a whole lot of “ya”
  • We’re putting the spotlight on the background. Now you can debug WebExtensions background content scripts and background pages
  • Content Security Policy (CSP) is now enforced for WebExtensions. (Who’s down with CSP?)
  • Old and busted: Error Console. New hotness: Browser Console for your debugging pleasure
  • Add-on development just got easier because you can reload them from about:debugging — because we’re all about debugging
  • This theme is hot, hot, hot! Say hi to the Firebug theme for Developer Tools
  • Expand network requests from the console panel to view request details in line, so you can see things in context

Download: Firefox 48.0.2 for Windows | Firefox 64-bit | 46 MB
Download: Firefox 48.0.2 for Linux | 54 MB
Download: Firefox 48.0.2 for MacOS | 82 MB


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