See what’s new in Firefox!
Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the complete list of changes in this release.
45.0
Firefox Release
March 8, 2016
Version 45.0, first offered to Release channel users on March 8, 2016
We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!
New
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Instant browser tab sharing through Hello
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Synced Tabs button in button bar
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Tabs synced via Firefox Accounts from other devices are now shown in dropdown area of Awesome Bar when searching
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Introduce a new preference (network.dns.blockDotOnion) to allow blocking .onion at the DNS level
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Guarani [gn] locale added
Fixed
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URLs containing a Unicode-format Internationalized Domain Name (IDN) are now properly redirected
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Various security fixes
Changed
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Tab Groups (Panorama) feature removed
Developer
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Ability to filter snapshot output in memory tool
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Fine tune animations by changing the playback rate of animations in the animation-inspector's timeline
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DOMContentLoaded and load events shown in the network monitor timeline
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Added Negative url filtering for the network monitor
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Support for diffing heap snapshots added to the memory tool
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Inspector search now matches results from all content in the page, including subframes
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List of animated properties and keyframes is now displayed when clicking on an animation in the animation-inspector’s timeline
HTML5
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Push API support, part of Progressive Web Applications
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Support delivery of a Content Security Policy (CSP) via a meta tag
unresolved
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On-screen keyboard support was temporarily turned off for Windows 8 and Windows 8.1
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Trusteer Rapport is severely impacting the stability of Firefox
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