* Rebind ghost Copy URL shortcut registrations to the pinned id Chromium never hands a suggested shortcut to one extension while another — even a long-gone one — still holds the registration. Profiles that first loaded Copy URL before its id was pinned registered Alt+Shift+L under an id derived from the extension's load path at the time, so the pinned extension never receives the shortcut and the keypress does nothing (#6816). The quattro upgrade tried to repair this against one hardcoded path-derived id, which only ever matched a single home directory. The historical ids are unknowable in general — they hash long-gone absolute paths through whatever symlinks existed then — but the registration itself names the command, so a migration now rebinds any copy-url command that points away from the pinned id, unless that id belongs to an extension that is actually installed or the pinned extension already holds a binding of its own. Browsers rewrite Preferences on exit, which reverts any repair made while one runs, so the migration asks for this user's browser windows to be closed first — failing and staying pending when there is no terminal to ask in or the prompt is declined. The backup a repair leaves behind marks it as attempted but unverified: until a browser-free run confirms the registration stayed repaired, the migration keeps itself pending rather than trusting a disk state an open browser may still overwrite. The upgrade-time repair is dropped: the upgrade already runs migrations, so the migration is the single implementation. Fixes #6816 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * Pin the WhatsApp Slim extension id Keyless unpacked extensions get path-derived ids, which go stale if the load path or packaging ever changes — the same class of bug that broke the Copy URL shortcut for pre-package installs. Pin the id with a manifest key like the other bundled extensions. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>