Mozilla Firefox 44.0 released with Web Push feature. Install Mozilla Firefox 44.0 on Ubuntu 15.10, Ubuntu 15.04, Ubuntu 14.10, Ubuntu 14.04 and Ubuntu Derivatives.
Firefox 44 has been released with an improved warning pages for certificate errors and untrusted connections. The latest version of Firefox now can enable H.264 (only if system decoder is available) and enable WebM/VP9 video support on systems that don’t support MP4/H.264. In the animation-inspector timeline, lightning bolt icon next to animations running on the compositor thread. It also bring support for brotli compression format via HTTPS content-encoding. For Developer Tools, Firefox 44 Screenshot commands allow user choice of pixel ratio.
Web Push
Web Push can receive notifications from websites, even without having that site open (as long as your browser is running). This means you can close your email tab and still find out when a new message arrives. That’s a huge win for memory usage, performance, and battery life.
Notifications from websites are indistinguishable from native notifications, and Mozilla’s Service Worker Cookbook has several live demos where you can see this for yourself. Much like with geolocation or webcam access, Web Push requires explicit, revokable permission before a website can show notifications to a user.
Web Push is an extension to the Service Worker standard, which means you can find excellent, annotated demos of Web Push in Mozilla’s Service Worker Cookbook.
Other New Features
- 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
- In the animation-inspector timeline, lightning bolt icon next to animations running on the compositor thread
- Support the brotli compression format via HTTPS content-encoding
- Screenshot commands allow user choice of pixel ratio in Developer Tools
Fixed
- Windows XP and Vista screensaver doesn’t disable when watching videos (Bug 1193610)
- Various security fixes
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
- Stricter validation of web fonts
- On-screen keyboard support temporarily turned off for Windows 8 and Windows 8.1
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
Download and Install Firefox 44
Before you begin, if you already have a previous Firefox version installed, remove it by running the following command:
sudo rm -r /opt/firefox
Download Firefox 44 – Please visit https://www.mozilla.org/en-US/firefox/new/