Privacy Policy
Last updated 8 September 2026
Tab Manager keeps everything on your computer. It has no servers, no accounts and no analytics, and it sends your tabs, your notes and your tree to nobody — including its developer.
The rest of this page explains what that means in detail, including the one place where your browser does still talk to a website.
What the extension handles
To draw a tree of your tabs, the extension reads:
- Page addresses (URLs) and titles of your open and saved tabs
- The address of each site's favicon
- How your windows, tab groups and tabs are arranged, and which tab is active
- Whether a tab is pinned, and a tab group's name, colour and collapsed state
- Anything you add yourself: notes, colours and dividers
Google classifies page addresses and titles as web browsing activity, so that is what this extension declares. It is the same information the tab strip already shows you — it is simply shown in a tree instead.
Where it is kept
On your computer, in storage that belongs to the extension:
- IndexedDB — your tree and its edit history
-
chrome.storage.local— small settings and the recovery snapshots used to restore windows after a restart -
chrome.storage.session— short-lived bookkeeping, discarded when Chrome closes
The extension deliberately does not use
chrome.storage.sync, so your tree is not copied to your Google
account or shared between your devices.
What leaves your computer
Nothing. The extension has no backend, makes no network requests of its own, and contains no analytics, telemetry, crash reporting or advertising code. There is no account to create and no data to opt out of sharing, because there is no sharing.
Your information is never sold, and never transferred to anyone.
The one exception worth naming: favicons
Rows show each site's own icon, using the icon address Chrome already knows. Displaying that image is an ordinary image request from your browser to that site, usually served from your browser's cache — the same request that happens when the tab itself is open.
Nothing about your tree, your notes or your other tabs is included in it: it is a request for an icon, made by your browser, not by any server of ours. Sites with no icon, and internal pages whose icons cannot be loaded, get a placeholder drawn by the extension instead.
Exports
When you choose to export, the extension writes a JSON file to your computer through Chrome's normal download prompt. That file contains your tree — addresses, titles and any notes — and it goes only where you put it. The extension does not upload it, and cannot read it back unless you import it.
Permissions, and why each one is needed
-
tabs— to read the titles and addresses used to build the tree. Without it, every row would be blank. -
tabGroups— to show your tab groups, and to rename, recolour or collapse one from the manager. -
storage— to keep your tree between sessions. -
unlimitedStorage— a large tree exceeds the default storage quota, and hitting that limit would lose data.
The extension requests no host permissions, so it cannot read the content of any page.
Deleting your data
Delete individual nodes in the manager window at any time. Removing the extension from Chrome deletes everything it has stored on your computer. Any export files you have already saved are yours, and stay until you delete them.
Children
Tab Manager is a general-purpose tool and is not directed at children. It collects nothing from anyone, of any age.
Changes to this policy
If the extension ever handles data differently, this page will say so before the change ships, and the date at the top will be updated.
Contact
Questions about this policy, or about what the extension does, can go to joshdelgado.public@gmail.com.