www.mozilla.org/en-US/firefox/android/41.0/releasenotes/

What’s New
NEW
Quickly search with different search providers from the search panel
NEW
Swipe-to-close tabs on tablets
NEW
Overlay to manually search and copy/paste login credentials from login manager when they're not auto-filled
NEW
Improved bookmark management with duplicate bookmark detection
NEW
Improved box-shadow rendering performance
NEW
Open Android applications from a web page via Intent URIs
NEW
Locale added: Croatian (hr)
CHANGED
Updates to image decoding process
CHANGED
User Agent now includes Android version
CHANGED
Support for running animations of 'transform' and 'opacity' on the compositor thread
HTML5
MessageChannel and MessagePort API enabled by default
HTML5
Added support for the transform-origin property on SVG elements
HTML5
CSS Font Loading API enabled by default
HTML5
Copy/Cut Web content from JavaScript to the OS clipboard with document.execCommand("cut"/"copy")
DEVELOPER
Removed support for binary XPCOM components in extensions, use addon SDK "system/child_process" pipe mechanism for native binaries instead
DEVELOPER
JavaAddonManager can now send, receive and respond to messages from Gecko
DEVELOPER
Experimental new "speed dial" home panel add-on API (example add-on)
DEVELOPER
Generic API let's developers create a grid of icons and then optionally allow for a large header image
FIXED
Support for playing MP3 files on Android 5.0 (Lollipop) and above
FIXED
Various security fixes

We make it Firefox. You make it your own. Meet our most customizable Android browser yet. Fast, smart and safe, the official Firefox for Android browser from Mozilla offers more ways than ever to make your mobile browsing experience uniquely yours.

FAST. Access, browse and search the Web at blazing speeds.
SMART. Share and search just how you like, and keep your favorite Web content a tap away with our most customizable and intuitive features yet.
SAFE. Make sure your browsing stays safe and private with extensive security settings, add-ons and features like Do Not Track.

In the Press:
“For many Android users, Mozilla’s updated Firefox app could quickly become their favorite mobile browser... I’ve found it to be the best mobile browsing experience I’ve had yet.” – VentureBeat

“The first thing you'll notice about the new version of Firefox for Android is how fast it really is…Firefox stands out for quick page loads and really smooth panning and zooming around web sites. “ – Lifehacker

"On my Samsung Galaxy S II, the new Firefox glides smoothly through any web page, whether it’s optimized for mobile browsing or not.” – TIME

“Firefox for Android is a lot snappier now. It starts up quicker and loads Web pages faster… What that means for the user is a much better browsing experience” – Information week

Key Features:

★ Customizable Home Panels: Customize and display your Firefox for Android Home panels however you like. Add new Web content any time and access your favorite feeds — like Instagram and Pocket Hits — instantly.
★ Sync: Sync your Firefox desktop tabs, history, bookmarks and passwords to all your devices and streamline your browsing.
★ Add-ons: Customize your Web browser just the way you like it with add-ons including Ad-Blocker, Password Manager and more.
★ Speed: Get to the Internet faster, with quick startup and page load times.
★ Accessibility: Over 59 supported languages can be easily selected through the browser settings.
★ HTML5: Experience the unlimited possibilities of the Internet on mobile with support for HTML5 and Web APIs.
★ Mobile Video: Firefox for Android has mobile video support for a wide range of video formats, including h.264.
★Security: Keep your browsing safe and private. Control your privacy, security and how much data you share on the Web.

For a complete list of features, check out mzl.la/FXFeatures

Learn more about Firefox for Android:
★ Have questions or need help? Visit support.mozilla.org/mobile
★ Read about Firefox permissions: mzl.la/Permissions
★ Learn more about what’s up at Mozilla: blog.mozilla.org
★ Like Firefox on Facebook: mzl.la/FXFacebook
★ Follow Firefox on Twitter: mzl.la/FXTwitter

Curious about add-ons for Firefox for Android? Check them out on AMO:
★ Browsing: Adblock Plus, AutoPager, Full Screen mobile and more
★ Security: LastPass Password Manager, NoScript, Dr. Web LinkChecker and more
★ Reading: AutoPager, X-Notifier lite and more
★ Watching: Low Quality Flash, ProxTube and more
★ Social Networks: Shareaholic, Foursquare and more

Mozilla marketing: In order to understand the performance of certain Mozilla marketing campaigns, Firefox sends data, including a Google advertising ID, IP address, timestamp, country, language/locale, operating system, app version, to our third party vendor. Learn more by reading our Privacy Notice here: https://www.mozilla.org/en-US/privacy/firefox/

ABOUT MOZILLA
Mozilla is a proudly non-profit organization dedicated to keeping the power of the Web in people's hands. We're a global community of users, contributors and developers working to innovate on your behalf. When you use Firefox, you become a part of that community, helping us build a brighter future for the Web. Learn more at mozilla.org.