Install Firefox 48 On Ubuntu 16.04 LTS / LinuxMint / CentOS

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In this Tutorial I will show you how to install Firefox 48.0 on Ubuntu 16.04 LTS /14.04 LTS, LinuxMint 17 / 16 / 15 , Fedora ,  CentOS 6.X / 7.x 

Firefox a most commonly used browsers by everyone and one of the standard browsers too.It is an opensource browser and it is developed by mozilla corporation and mozilla Foundation and  available for Multiple Operating systems (ie) Windows,Linux,Mac OSX. 
and it comes with its private mode and powerful plugins

Firefox Released its new stable Version 48.0 on August 2nd 2016


Changelog in Firefox 48.0

New:

  • Roar for moar protection against harmful downloads! We've got your back
  • Process separation (e10s) is enabled for some of you. Like it? Let us know and we'll roll it out to more.
  • 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
  • The media parser has been redeveloped using the Rust programming language

Fixed:

  • 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
  • Changed:
  • 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!
  • After version 48, SSE2 CPU extensions are going to be required on Windows
  • Au revoir to Windows Remote Access Service modem Autodial

Developer:

  • WebExtensions support is now considered as stable
  • 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
  • Workers can now use the Web Crypto API

Installation Steps


Method 1 (For Debian based systems) Via PPA 

Best and easy way is to upgrade firefox by updating the Repository, it will automatically upgraded to new version
sudo apt-get update
sudo apt-get upgrade


Method  2 : Via tar file -- applicable for all distributions

Step 1:Download The Latest Version of Firefox 47 from their FTP using wget

For 32 bit systems
wget https://ftp.mozilla.org/pub/firefox/releases/48.0/linux-i686/en-US/firefox-48.0.tar.bz2
For 64 bit systems
wget https://ftp.mozilla.org/pub/firefox/releases/48.0/linux-x86_64/en-US/firefox-48.0.tar.bz2
Step 2: Extract the tar package
tar -xjf firefox-48.0.tar.bz2
Step 3: Move the Firefox  folder to opt
Remove the Older version of firefox if it's there
sudo rm -rf  /opt/firefox
sudo mv firefox /opt/firefox
Step 4: Create Symbolic link for New Firefox as default
sudo mv /usr/bin/firefox /usr/bin/firefoxold
sudo ln -s /opt/firefox48/firefox /usr/bin/firefox
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