Mozilla Firefox 44.0 Released, now you can upgrade or Install  on Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 wily werewolf, Ubuntu 15.04 vivid Vervet, ubuntu 14.10 Utopic Unicorn, Ubuntu 14.04 Trusty Tahr (LTS) and other Ubuntu derivative system

The Mozilla Firefox project is a redesign of Mozilla’s browser component, written using the XUL user interface language and designed to be cross-platform, supporting Linux, Android, Microsoft Windows and Mac OS X operating systems. It is a fast, small and very easy-to-use web browser/navigator/explorer that offers many advantages over other similar products, such as the ability to block pop-up windows and the feature-rich tabbed browsing experience.

Features at a glance

The application offers a well designed graphical user interface that integrates search (powered by Google, Bing, Yahoo, etc.), and industry leading accessibility with Find As You Type – find links and page text by simply typing. As mentioned before, the Firefox browser features comprehensive pop-up controls, which will keep unwanted advertising off your desktop. A tab browsing mode will let you open several pages in a single window, allowing you to load links in the background without leaving the page you’re on.



What New in Mozilla Firefox 44.0:

New:

• Improved warning pages for certificate errors and untrusted connections
• Enable H.264 if system decoder is available
• Enable WebM/VP9 video support on systems that don’t support MP4/H.264

Fixed:

• Windows XP and Vista screensaver doesn’t disable when watching videos (Bug 1193610)

Changed:

• To support unicode-range descriptor for webfonts, font matching under Linux now uses the same font matching code as other platforms
• Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements
• Firefox has removed support for the RC4 decipher
• Firefox will no longer trust the Equifax Secure Certificate Authority 1024-bit root certificate or the UTN – DATACorp SGC to validate secure website certificates

Developer:

• Right click on a logged object in the console to store it as a global variable on the page
• Visual tools for Animation:
• View/Edit CSS animation keyframe rules directly in the inspector
• Visually modify the cubic-bezier curve that drives the way animations progress through time
• Discover and scrub through all CSS animations and transitions playing on the page
• Learn more: http://devtoolschallenger.com/

Visual tools for Layout and Styles:

• Display rulers along the viewport to verify size and position and use the measurement tool to easily detect spacing and alignment problems
• Use CSS filters to preview and create real-time effects like drop-shadows, sepia, etc
• Learn more: http://devtoolschallenger.com/
• New memory tool for inspecting the memory heap
• Service Workers API
• Built-in JSON reader to intuitively view, search, copy and save data without extensions
• Jump to function definitions in the debugger with Cmd-Click
• WebSocket Debugging API and add-on
• The rule view now displays styles using their authored text, and edits in the rule view are now linked to the style editor
• Add-on signing enforcement

How to Upgrade to Mozilla Firefox 44.0 on Ubuntu Derivative System :