Firefox Release Notes

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 system requirements of this release.

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Version 45.0.2, first offered to Release channel users on April 11, 2016

We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!

Fix a regression impacting some specific uploads (1255735)
Fix a crash impacting the video playback with Media Source Extension (1258562)
Fix a regression with the copy and paste with some old versions of some Gecko applications like Thunderbird (1254980)
Fix a web compatibility regression impacting the srcset attribute of the image tag (1259482)
Fix an issue impacting the cookie header when third-party cookies are blocked (1257861)

Get the most recent version

Download Firefox — English (US)

Your system may not meet the requirements for Firefox, but you can try one of these versions:

Download Firefox — English (US)