Days after releasing Firefox 153, Mozilla issued a quiet but consequential patch — version 153.0.1 — to mend a cluster of bugs that only revealed themselves once millions of users began their ordinary routines. Audio fell silent mid-stream, developer tools stumbled over dynamically generated files, and some Windows machines refused to start the browser at all. The swift response is a reminder that software, like any living system, is never truly finished — only continuously tended.