Install Firefox 43 on Ubuntu 15.10, Ubuntu 14.04

Firefox 43 Stable for Linux Ubuntu Systems. Install Firefox 43 on Ubuntu 15.10, Ubuntu 14.04 and Derivatives. Firefox 43.0, the latest stable version features an improved API support for m4v video playback, WebRTC streaming on multiple monitors, GTK3 integration (GNU/Linux only) and others. Here’s the list of new features and fixes released with Firefox 43.0:


  • Private Browsing with Tracking Protection offers choice of blocking additional trackers
  • Improved API support for m4v video playback
  • Users can choose search suggestions from the Awesome Bar
  • On-screen keyboard displayed on selecting input field on devices running Windows 8 or greater
  • WebRTC streaming on multiple monitors
  • Improved Big5 support for Hong Kong supplementary characters on Windows XP
  • GTK3 integration (GNU/Linux only)


  • Network requests in Console now link to Network panel instead of opening in a popup
  • Subresource integrity allows developers to make their sites more secure
  • Ability to choose resolution for the GCLI screenshot command
  • Added ability to display server-side logs in the console
  • Stack traces are now shown for exceptions inside the console
  • Ability to filter styles from their property names in the rules view
  • Search button next to overridden CSS properties to find similar properties in the rules view
  • New ‘Use in Console’ context menu item in Inspector to store selected element in a temporary variable
  • Bind F1 key to open the settings when the toolbox is focused
  • Markup view shows indicators for pseudo-classes locked for elements
  • Animation inspector now displays animations in a timeline
  • The ‘transform-origin’ property is now supported on SVG elements
  • WebIDE now has a sidebar-based UI
  • Unprefixed ‘hyphens’ property is now supported


  • Eyedropper tool does not work as expected when page is zoomed

Install Firefox 43.0 on Ubuntu

Run the following commands in Terminal to install Mozilla Firefox 43.0 on Ubuntu 15.10, Ubuntu 14.04, Ubuntu 14.10, Ubuntu 15.04 and Derivatives.

Install Firefox 43.0 on 32 Bit Linux Ubuntu

$ wget
$ tar -xjvf firefox-42.0.tar.bz2
$ sudo rm -rf /opt/firefox*
$ sudo mv firefox /opt/firefox
$ sudo ln -sf /opt/firefox/firefox /usr/bin/firefox

Install Firefox 43.0 on 64 Bit Linux Ubuntu

$ wget
$ tar -xjvf firefox-42.0.tar.bz2
$ sudo rm -rf /opt/firefox*
$ sudo mv firefox /opt/firefox
$ sudo ln -sf /opt/firefox/firefox /usr/bin/firefox

Once installed, open Firefox from Ubuntu Dash or via Terminal. Open terminal, type firefox and press enter to open Firefox.

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