Float Note documentation

Storage model

Each note is stored under a key combining the page URL and the timestamp it was created, for example:

https://example.com/page|1770000000000

Notes are written to chrome.storage.local, Chrome's built-in per-extension storage. Timestamps prevent key collisions when you create more than one note on the same page. Chrome allows up to 10MB of local storage per extension.

Saving behavior

• Auto-save — changes are written automatically after about 2 seconds of inactivity.
• Manual save — the Save button in the editor writes immediately.
• The editor shows a status indicator ("Unsaved changes…" or "Saved") so you always know the current state.

Per-tab and per-page behavior

Each browser tab maintains its own editor state. Returning to a URL you've taken notes on — in the same tab or a new one — loads your most recent note for that page automatically once you open the editor.

Managing notes

Open the extension popup to see every note created for the current page. From there you can:

• Click a note to resume editing it
• Delete an individual note
• Clear all notes for the current page

Old notes are not deleted automatically — deletion is always a manual action.

Installation

Float Note is published on the Chrome Web Store:

1. Open the Float Note listing and click "Add to Chrome."
2. Pin the icon from the extensions menu (puzzle-piece icon) in your toolbar.
3. Click the icon on any page to open the editor and start writing.

Troubleshooting

The editor doesn't appear

Refresh the page, confirm the extension is enabled at chrome://extensions, and try reloading the extension from that page.

Notes aren't saving

Check available storage space and look for errors in the page console (F12 → Console).

The toolbar icon is missing

Go to chrome://extensions, find Float Note, and click the pin icon to keep it visible in the toolbar.

Browser compatibility

Float Note targets Chromium-based browsers: Chrome 88+, Edge 88+, and other Chromium browsers such as Brave and Vivaldi.