Original Summary

Been pulling my hair out debugging a relative’s persistent BSOD (once every ~6hrs) after nudging them to take the first degoogling step by switching browsers.<p>I could not believe at first that a user space program, especially a Windows Store sandboxed one, could affect anything in the kernel, but analyzing every single coredump shows the exact same trigger: Firefox attempted to rename the UrlAssocistions&#x2F;http registry key in the UWP sandbox’s virtualized registry hive, triggering an access violation in the Registry system service and crashing ntoskrnl.<p>It turns out that there is a secretly enabled config “browser.shell.setDefaultBrowserUserChoice.regRename” that causes Firefox to attempt this renaming periodically despite the user already having unchecked the “check if default on startup” option. A quick search reveals that it was a vestigial A&#x2F;B testing feature that was already slated for deprecation[0], but remained in the current version and a perfect storm of I’m guessing UWP kernel memory bug and Firefox dark pattern triggered this outcome.<p>[0] https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=2060861

  • 情报分类：综合情报
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  • 信息来源：Hacker News 新项目
  • 发布时间：2026/9/23 00:08:26