Google Drive Sync Guide

Set up seamless cross-device sync using your personal Google Drive account — no API keys or third-party accounts required.

The Google Drive integration provides seamless cross-device synchronization for your reading progress. Your data is stored privately inside a dedicated, hidden folder within your own Google Drive account, eliminating the need to manage third-party API keys or complex setups.

1

The Synchronization Logic & Multi-Device Rule

To ensure total control over your reading data and protect your progress from accidental overwrites when hopping between devices, synchronization remains semi-automatic:

  • Automatic Backup: When turned on, the extension pushes your local markers to your Google Drive in the background every 24 hours.
  • Manual Sync: Triggered via the dedicated buttons placed directly inside the Archive of Our Own (AO3) interface.
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Multi-Device Golden Rule

If you read on multiple devices (like your PC and a smartphone), enable Automatic Backup ONLY on your primary device (the one you use most often). Keep it disabled on secondary devices. When switching to a secondary device, click Download to sync your local state before reading.


2

Universal Setup (Desktop & Mobile)

Thanks to the new unified web flow, setting up your cloud connection is exactly the same across all devices and browsers (including Firefox for Android):

  1. 1
    Navigate to the extension menu and select the Cloud Settings tab.
  2. 2
    Under Storage Provider, select Google Drive.
Cloud Settings Tab
Figure 1 — Activating Google Drive as your storage provider in Cloud Settings.
  1. 3
    Click Log In with Google. A new secure tab will open to handle your authentication.
Google Login Web Flow
Figure 2 — Completing the secure authentication flow in your browser.
  1. 4
    After successful login, make sure to check the box granting the extension permission to access your Google Drive.
Google Drive Access Permission Checkbox
Figure 3 — Granting Google Drive access permissions during the authentication flow.

3

Using Sync Features Inside AO3

Once connected to your Google account, load any works list or history page on AO3. Look at the top bar labeled Marker Tools:

  • Upload to Drive: Saves your current local state to your cloud folder. (Hidden when Automatic Backup is active.)
  • Download from Drive: Pulls your cloud copy to refresh your active device history.
AO3 Marker Tools Sync Buttons
Figure 4 — The Upload and Download sync buttons within the AO3 interface.
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Privacy Note

The extension only accesses its own dedicated appdata folder inside your Drive. It cannot view, edit, or delete any other files. No data is shared with third parties.

Choose your browser

Select the store for your browser to install the extension.

Chrome Web Store Also for Opera, Brave & Edge (PC)
Firefox Add-ons For PC & Mobile (Android)