![]() This change was done in phases starting in April 2019 through September 2019 to allow for smooth migration (see the "Product update schedule" section for more details on the changes).Ĭustomers who run legacy OS versions (Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Server 2008 SP2) are required to have SHA-2 code signing support installed on their devices to install updates released on or after July 2019. Because of weaknesses in the SHA-1 algorithm and to align to industry standards, we have changed the signing of Windows updates to use the more secure SHA-2 algorithm exclusively. The signatures are used to authenticate that the updates come directly from Microsoft and were not tampered with during delivery. Mozilla noted this in the release notes of version 100.0a, from which the above quote was extracted.To help protect the security of the Windows operating system, updates were previously signed (using both the SHA-1 and SHA-2 hash algorithms). Update KB4474419 is required for successful installation on a computer running the Microsoft Windows 7 operating system. The Mozilla developers will sign the installer package with SHA-256 starting in this release.īeginning in this release, the Firefox installer for Windows is signed with a SHA-256 digest, rather than SHA-1. The technical background why the Windows 7 update KB4474419 is required for the Firefox 100 installation is quite simple. According to this page, the release of Firefox 100 is scheduled for – so there is still some time. But also techdows mentioned it here already on March 30, 2022.das Ganze bereits vorige Woche bei Martin Brinkmann auf über nachfolgenden Tweet mitbekommen.Ĭurrently it affects only people who want to install the nightly builds of the browser, which also still supports Windows 7 SP1, on an unpatched Windows 7 operating system. ![]() ![]() I already caught the topic last week from Martin Brinkmann on via the following tweet. ![]()
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