Download Thunderbird 40.0 Beta 1

Thunderbird 40.0 Beta 1

Von Mozilla Organization  (Open Source)
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# New
- Support for Windows 10 including tablet mode
- Download protection from potentially unwanted software
-Suggested Tiles show sites that may be of interest, based on categories from your recent browsing history
- Add URLs to a Hello conversation for additional context
- New style for add-on manager based on the in-content preferences style
- Smoother and more reliable CSS animations via asynchronous animations
- Improved scrolling, graphics, and video playback performance with off main thread compositing (GNU/Linux)
# Changed
- Add-on extensions that are not signed by Mozilla will display a warning
- Smoother animation and scrolling with hardware vsync (Windows only)
- JPEG images use less memory when scaled and can be painted faster
# HTML5
- Support for new Unicode 8.0 skin tone emoji
- IndexedDB transactions are now non-durable by default
- Implemented AudioBufferSourceNode.detune to modulate playback rate in cents
# Developer
- Improved Performance tools in the developer tools
- New rules view tooltip to tweak CSS Filter values
- New page ruler highlighting tool that displays lightweight horizontal and vertical rules on a page
- Console API messages from SharedWorker and ServiceWorker are now displayed in web console
- Inspector now searches across all content frames in a page
- Places Keywords API has been deprecated, update to the Asynchronous Keywords API
- Removed support for binary XPCOM components in extensions, use addon SDK "system/child_process" pipe mechanism for native binaries instead
# Fixed
- Kannada text does not display properly in built-in pdf viewer