Firefox 43.0.2

https://www.mozilla.org/en-US/firefox/43.0.2/releasenotes/
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追記

Fixed: Various stability and security fixes
Changed: Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements

あらら
追記終わり

This has been added to the release notes with two wordings for 43.0.1 & 43.0.2 but also beta (only the second) and esr (38.5.1 & 38.5.2):
* Prepare to use SHA-256 signing certificate for Windows builds, to meet new signing requirement (1079858)
* Use a SHA-256 signing certificate for Windows builds, to meet new signing requirements

https://bugzilla.mozilla.org/show_bug.cgi?id=1079858

Firefox 43.0.1 の模様