Window Vault Privacy Policy
Effective and last updated: August 3, 2026
Window Vault is a local-first Chrome extension for saving and restoring browser windows and tabs.
Data handled
When the user saves a snapshot, Window Vault reads open-window and tab information including page URLs, page titles, tab order, pinned and active state, window position and size, and tab-group names, colors, and collapsed state. It also stores extension settings such as the automatic-backup interval and retention count.
This information is used only for the extension's single purpose: saving and restoring browser sessions.
Local storage and transmission
All extension data is stored locally on the user's device with chrome.storage.local. Window Vault has no server, account system, advertising, analytics, tracking, telemetry, or remote code. It does not transmit browsing or extension data to the developer or any third party.
The user may explicitly export data to a JSON file and import a compatible file. Those files remain under the user's control.
Sharing, sale, and unrelated use
Window Vault does not sell, rent, share, or use user data for advertising, credit decisions, profiling, or purposes unrelated to session backup and restoration.
Retention and deletion
Data remains in local extension storage until the user deletes snapshots, automatic retention removes old automatic snapshots, local extension data is cleared, or the extension is uninstalled. Exported JSON files must be deleted separately by the user.
Permissions
tabs: reads tab metadata and creates tabs during restoration.tabGroups: reads and recreates tab groups.storage: stores snapshots and settings locally.unlimitedStorage: supports large local session histories.alarms: schedules automatic snapshots selected by the user.
Window Vault requests no host permissions and cannot read page contents.
Contact
For privacy questions, open an issue in the Window Vault GitHub repository. For sensitive reports, use GitHub's private vulnerability-reporting feature.