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Preview of WebCookie Sync

WebCookie Sync by Aprajit

Universal & Outlook session migrator. Seamlessly copy Outlook or any website cookies & session across browsers without re-entering credentials.

Available on Firefox for Android™Available on Firefox for Android™
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Extension Metadata

About this extension
Cookie Sync is a privacy-first, 100% client-side session migrator that lets you seamlessly transfer authenticated sessions, cookies, and local/session storage between browsers without re-entering passwords or 2FA prompts.

Key Features:
- Deep Microsoft & Outlook Sync: Automatically captures exchange auth tokens, session cookies, and client storage state from outlook.live.com and Microsoft login endpoints.
- Universal Mode: Works on any website (GitHub, LinkedIn, portals, etc.) capturing domain cookies and storage.
- Pre-Purge Safety: Cleans existing cookies for the target site prior to injection to prevent auth loops and session corruption.
- Account Identity Tracking: Detects logged-in Microsoft accounts, organizing your sync history in Most Recently Used (MRU) order with relative timestamps.
- 1-Click Actions: Quickly copy active account emails, export encrypted/raw payloads, or remove history.
- 100% Client-Side & Private: Zero external servers, zero trackers, zero analytics. Your session data never leaves your device.

How to Use:
1. Export: Log into Outlook (or any site) and open Cookie Sync. Click "Copy Session to Clipboard" (or save as JSON).
2. Import: Switch to your other browser, open Cookie Sync, paste the session, and click "Inject Pasted Session".
3. Cookie Sync will automatically clear stale session data, apply the new cookies and tokens, and launch the authenticated tab.
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Permissions and data

Required permissions:

  • Get data from the clipboard
  • Input data to the clipboard
  • Access browser tabs
  • Access your data for all web sites

Optional permissions:

  • Access your data for all web sites

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
2.1.0
Size
32.02 kB
Last updated
4 days ago (8 Oct 2026)
Related Categories
  • Web Development
  • Privacy & Security
  • Tabs
Licence
MIT Licence
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