Firefox 43.0

Firefox

Mozilla Firefox is a fast, full-featured Web browser. It offers great security, privacy, and protection against viruses, spyware, malware, and it can also easily block pop-up windows. The key features that have made Mozilla Firefox so popular are the simple and effective UI, browser speed and strong security capabilities. Firefox is built on top of the powerful new Gecko platform, resulting in a safer, easier to use and more personal product.

Firefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online.

Changes in Firefox 43.0:

New

Improved API support for m4v video playback
Users can opt-in to receive 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
User selectable second block list for Private Browsing's Tracking Protection
GTK3 integration (GNU/Linux only)

Developer

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