Windows Admin Center: Firefox 42 Final is now available (Desktop/Android)

Firefox 42 Final released (November 3, 2015)
The final version of Firefox 42 is now available for both desktop and android users. This release includes Private Browsing with Tracking Protection blocks certain Web elements that could be used to record your behavior across sites.

This release also added to tabs that play audio with one-click muting, feature enhancements and security updates. Firefox 42: Security fixes can be found here.

What's new features in Firefox 42?
According to Firefox release notes, Firefox 42 for desktop has the following changes:

New:

Private Browsing with Tracking Protection blocks certain Web elements that could be used to record your behavior across sites.
Control Center that contains site security and privacy controls.
Indicator added to tabs that play audio with one-click muting.
WebRTC improvements:
- IPV6 support
- Preferences for controlling ICE candidate generation and IP exposure
- Hooks for extensions to allow/deny createOffer/Answer
- Improved ability for applications to monitor and control which devices are used in getUserMedia
Login Manager improvements:
- Improved heuristics to save usernames and passwords
- Edit and show all logins in line, Copy/Paste usernames/passwords from the Context menu
- Migration imports your passwords to Firefox from Google Chrome for Windows and Internet Explorer; import anytime from the Login Manager

Changed:

Improved performance on interactive websites that trigger a lot of restyles.

You can find the full changelog here.

Firefox for android
According to Firefox release notes, Firefox 42 for android allows you open external URLs from Android apps in the background. It also adds support direct voice input for searching from the URL bar, and contains a number of improvements, here are highlights of changes in version 42 for android:

New:

Private Browsing with Tracking Protection blocks certain Web elements that could be used to record your behavior across sites.
Open external URLs from Android apps in the background.
Family-friendly browsing for Android when users create a restricted profile on tablets.
Use scrollable tabs for panels navigation.
Support direct voice input for searching from the URL bar.
Mobile login manager (about:logins) lists all saved logins and allows users to view/edit or delete logins.

Changed:

Improved performance on interactive websites that trigger a lot of restyles.

You can find the full changelog here.

Download Firefox 42
The links in this section correspond to files available for this download. Download the files appropriate for you.

Note: All existing users should be able to upgrade to it automatically (Menu > Help menu > About Firefox).

Firefox 42 screenshots: