Privacy Policy
Last updated 18 August 2026
TabKeeper does not send your data anywhere. There is no server, no analytics, no telemetry, and no network request of any kind. Everything it knows stays in your own browser, on your own machine.
What TabKeeper reads
To do its job the extension reads the following through Chrome's own extension APIs:
- Open tabs — title, URL, pinned state, whether the tab is playing audio, whether Chrome has unloaded it, and which tab group it belongs to.
- Tab groups — title and colour.
- Bookmarks — your bookmark tree, so it can be listed, searched and edited.
- Recently closed tabs and windows — Chrome's own list, so they can be reopened.
What TabKeeper stores
In chrome.storage.local, on your device only:
- A last-used timestamp and URL for each open tab. This is what makes the "stale tab" feature work. The URL is kept next to the timestamp so the record can be matched again after a browser restart, when Chrome reassigns tab IDs.
- Sessions you save, and sessions created by Sweep — the title, URL, pinned state and tab-group membership of each tab in them.
- Your settings — theme, staleness threshold, and the other options.
Records for tabs you close are deleted.
What TabKeeper does not do
- No data ever leaves your device. The extension makes no network calls of any kind, and its Content Security Policy forbids remote code.
- Site icons come from Chrome's own local favicon cache, over an internal
chrome-extension://address — they are never fetched from the websites themselves. No site learns that you are looking at your own tab list. - No analytics, tracking, fingerprinting or advertising.
- Your data is never sold or transferred to anyone, because it is never transmitted at all.
- It is never used to determine creditworthiness or for lending purposes.
- It is never used for any purpose unrelated to managing your tabs, bookmarks and sessions.
- TabKeeper requests no host permissions and injects no content scripts, so it cannot read the contents of any web page you visit.
Removing your data
Uninstalling TabKeeper deletes everything it stored. Reset all settings on the options page restores the defaults without touching your saved sessions or bookmarks. Deleting a saved session removes it immediately.
Permissions, and why each is needed
| Permission | Why |
|---|---|
tabs | Read tab titles and URLs to list them; activate, close, move, pin and unload tabs. |
tabGroups | Show which group a tab belongs to, and create or rename groups. |
bookmarks | Show the bookmarks tree, add the current tab, delete a bookmark. |
sessions | Show Chrome's recently closed tabs and windows, and restore one. |
storage | Save your settings, sessions and last-used timestamps locally. |
sidePanel | The extension's entire interface is a side panel. |
favicon | Show each site's icon from Chrome's local cache, without any network request. |
Changes to this policy
If this policy changes, the date at the top of this page changes with it. TabKeeper has no way to notify you, because it never contacts a server.
Contact
Questions about this policy or about the extension: contact@blendpdf.com.