LinkNest is an open-source, self-hosted bookmark sync extension. The add-on requires bookmarks/storage/alarms permissions to read local bookmarks, store sync state/tokens locally, and run scheduled sync. Host access is broad because users can configure their own self-hosted API domain at runtime (not fixed to a single vendor domain). No remote code execution, eval, or dynamic script loading is used. This release removes unused identity permission, improves DOM safety by removing risky innerHTML patterns in popup UI, and updates Firefox manifest compatibility metadata. Main functionality is unchanged: login, two-factor auth flows, bookmark sync, and optional categorization via user-configured backend. Source is unminified in package; no build/webpack/minifier pipeline is used for this upload.