Mozilla releases one every six weeks new edition of Firefox. Firefox version 42 is currently available to the general public, Firefox 43 is in beta, and Firefox 44 is in Developer Edition. But let's see the main changes brought to us by Firefox 42.
Enhanced Private Browsing
Now when you surf on a private tour, the Firefox it will block all known data that track your activity. Blocks all external JavaScript, Iframes and anything blacklisted by the “diconnect.me” service.
Index finger sound and mute tabs
With Firefox 42, you can turn off the sound on each tab by using the appropriate icon on it.
Privacy page options
The "Privacy" options page has been updated. It is now clearer and easier to use
Improved HTTPS indices
Mozilla developers have changed the way Firefox displays the level better safetyof a website.
WebRTC
Η support WebRTC has been improved. WebRTC allows you to make VoIP calls using only your web browser. It now supports IPv6, which is more secure and allows you to change the appearance of your IP. Also, Firefox 42 has the ability to suppress incoming calls.
Media Source Extensions
The Media Source Extension API used to play HTML5 video is enabled for all webpages. So now you can play HTML5 videos everywhere without the need for Flash Player.
Update the Source Code viewer
Source Code viewer now opens on a separate tab instead of a separate window.
Also:
The Android version now has a new voice input capability. All versions include a huge number of security updates and performance improvements.
The ESR channel now has Firefox's 38.4 version. The Thunderbird email application will be updated with 38.0.4 ESR. SeaMonkey will reach 2.39.
Firefox 43 distribution is expected on 15 December 2015. Firefox 44 should be released on 26 January 2016.
To download Firefox, use the links below:
Download it Firefox Stable
Download it Firefox Beta
Download it Firefox Developer Edition
Download it Firefox Nightly
Download it Firefox ESR