ContextOS Privacy Policy
Last updated: November 2, 2026
ContextOS ("the extension") is a Chrome extension that saves your open tabs as sessions so you can search and restore them later. This policy explains what the extension does with your data.
The short version
ContextOS keeps your data on your device. It does not send anything to me or to anyone else.
What the extension accesses
When you save a session, or when an automatic snapshot runs, the extension reads the title and web address (URL) of your open browser tabs. It does not read the content of web pages, form entries, passwords, cookies or any other page data.
What the extension stores
It stores the following in your browser's local extension storage (chrome.storage.local):
- The names and dates of your saved sessions and automatic snapshots
- The titles and URLs of the tabs inside them
This data is stored only on your device. Removing the extension, or deleting a session inside it, removes the related data.
What the extension does not do
- It does not send your data to any server
- It does not use analytics, tracking or advertising tools
- It does not sell, rent or share your data with third parties
- It does not use your data for any purpose other than saving and restoring your sessions
- It does not load or run code from outside the extension package
Permissions
- tabs: to read the title and URL of your open tabs and to reopen them when you restore a session
- storage and unlimitedStorage: to keep your sessions on your device
- alarms: to run the automatic snapshot timer
Sync
Your sessions are stored locally and are not synced by the extension. If you use Chrome's own sync or profile features, those are controlled by Google and your browser settings, not by this extension.
Your control
You can delete any saved session from the extension's popup at any time. Uninstalling the extension deletes all of its stored data.
Children
The extension is not directed at children and does not knowingly collect any personal information.
Changes to this policy
If the extension's data practices change, I will update this policy and the "Last updated" date. If a change affects how your data is handled, the extension's listing will say so.
Contact
Questions about this policy: tkdevelopers.app@gmail.com