Hi Firefox Team, In today’s web, we interact with hundreds of websites (online shops, blogs, SaaS tools) and often forget past experiences. It would be an incredibly useful addition if Firefox allowed users to attach personal notes or alerts directly to a specific domain or URL. Proposed Workflow: 1. Context Menu Action: Right-click on a tab or web page and select "Add Personal Note / Alert for this Site". 2. Metadata Input: The user writes a short remark (e.g., "Poor return policy on this store", "Great tutorial, read again", "Requires specific login credentials"). 3. Sync Integration: These notes are encrypted and synced across devices using Firefox Sync (alongside Bookmarks and History). 4. Visual Indicator/Toast Alert: Whenever the user revisits that domain in the future (even years later), Firefox displays a subtle, non-intrusive badge or ambient corner toast displaying the user's previous note. Why this matters: - Prevents users from repeating bad purchase decisions or falling into the same traps. - Adds a deeply personal, privacy-focused layer of utility that aligns with Mozilla’s user-first philosophy. - Unlike heavy extensions, having native sync and lightweight UI integration would provide a seamless browsing experience. Thank you for considering this feature!