Memolight

Memolight helps you remember who said what—and why it mattered. Add a private note, short label, or color marker beside usernames, authors, or selected text without leaving the page. Your data stays in Firefox extension storage by default, with no Memolight account or developer-operated server required.

How it works

• On built-in supported communities, Memolight places a subtle marker beside detected usernames and authors.
• On other websites, text markers work only after you explicitly add the domain and grant access.
• Select text and use Firefox's context menu to save it as a phrase memo.
• Hover over a saved marker for a quick preview, or open it to edit the note, label, and color.
• For memos you choose to create, Memolight can keep a sanitized source URL, page title, and short surrounding snippet so you can return to the original context.

The toolbar hub now shows whether the current page is supported, whether access is allowed, how many targets and saved memos were found, and whether optional sync needs attention. From the hub you can open Memo Manager or run a privacy-limited diagnosis of the current page.

Organize and recover

• Search, filter, sort, and edit saved memos in Memo Manager.
• Control markers per supported site or custom domain.
• Keep up to 20 recent versions of memo-facing changes.
• Restore an earlier version or recover a deleted memo.
• Export readable CSV files.
• Export and import password-protected AES-GCM backups.
• Preview local storage use and the impact of a backup before importing it.
• Use dark mode.

Without sync, notes and settings remain in Firefox extension storage on your device. Memolight has no advertising, analytics, tracking, or developer-operated backend, and it does not collect your general browsing history.

Website access is requested only for built-in supported sites and custom domains you explicitly add and enable. Synced custom-site definitions never grant site access automatically on another installation. CSV exports are unencrypted; password-protected backup files use AES-GCM.

Optional encrypted Google Drive sync

Google Drive sync is available on Firefox desktop and stays off until you connect your own Google account. When enabled, supported Memolight data is encrypted on your device and sent directly to your hidden Google Drive app-data space. Memolight requests only the drive.appdata scope and cannot access your normal Drive files.

The random sync key is stored in the same hidden app-data space so another installation using the same Google account can reconnect. This is not zero-knowledge encryption against access to that Google account or Google itself. OAuth tokens stay in Firefox extension storage and are used only for sync. Disconnecting leaves both local and remote data intact; a separate action can delete the Drive sync data while keeping local memos.

Why permissions are needed

• Storage: notes, settings, recent versions, recovery records, sync state, and—on Firefox desktop—OAuth tokens.
• Alarms: optional sync scheduling and bounded retries.
• Identity and Google API access: used only after you choose Google Drive sync.
• Site access and scripting: markers on supported or explicitly approved domains.
• Context menus: saving text you explicitly select.
• Active tab: an on-demand, privacy-limited page diagnosis after you click the toolbar icon.