Uzero Support

Privacy Policy

The short version

We built Uzero without servers, analytics, ads or remote code. It does not track your browsing and does not run in private windows. It talks only to Google: to read the account list, load profile photos and open Google pages. It sends nothing to us or anyone else.

Uzero reads the Google accounts signed in to your browser: each account's email, name, profile photo link and position. On Safari it gets the account list through a Google tab you already have open. It reads the current Google tab's address only when you ask to switch accounts. It never reads or stores passwords, sign-in codes, email contents, files or calendars.

Uzero stores your account list, order, labels, colors and settings in browser storage on your device. Reorder progress and short-term status are gone when the browser closes. Uninstalling deletes its storage. We hold no copy.

Outside the extension:

Full policy

Effective date: 2026-11-09

This policy covers the Uzero browser extension ("Uzero") for Chrome, Edge, Firefox and Safari (Mac and iOS). "We" and "us" mean anvilnine, the developer of Uzero. "You" means the person who uses it.

1. The data Uzero uses

Uzero uses only the data it needs to show and order your Google accounts.

DataWhere it comes fromWhy Uzero needs it
Email, name, profile photo link and sign-in position of each Google account that is signed in to your browserGoogle, at accounts.google.comTo show your accounts and their order
The address of your current tab, only on Google sitesYour browserTo switch that tab to another account, when you ask
Your order, labels, colors and settingsYouTo remember your choices

Uzero does not read or collect:

2. Where your data is kept

All data stays on your device, in the browser's own extension storage:

We have no servers, no database and no account system. We never receive a copy of your data, so we cannot see, sell or share it.

3. What Uzero sends over the network

Uzero sends requests only to Google, and only to do its job:

  1. Your account list. Uzero asks accounts.google.com for the list of accounts that are signed in. Your browser adds your existing Google cookies to this request, the same as when Google's own account menu loads. Uzero does not read or store those cookies. On Safari, Uzero runs this request inside an already open Google tab.
  2. Profile photos. The popup shows each account's photo from Google's image servers. These requests send no referrer.
  3. Google pages you open. When you switch accounts, use Pin mode or reorder, Uzero opens or changes Google pages in your browser. Google's own Privacy Policy applies to those pages.

Uzero sends nothing to us or to any other party. It has no analytics, no ads, no tracking, no crash reports, and no remote code.

4. Things that happen only when you click

5. Passwords and signing in

Uzero never types, fills, reads or stores passwords. On Chrome, Edge and Firefox it adds no scripts to Google's pages. On Safari it runs one short request inside an open Google tab to fetch the account list. That request reads nothing on the page and never touches the sign-in form. You type every password on Google's own page. During a reorder, Uzero only opens Google's own sign-out and sign-in pages and checks which accounts are signed in.

6. Permissions, and why

PermissionWhy
Access to the Google sites listed in the appendixRead your account list. Open Google links in the account you pick. Nothing else.
declarativeNetRequestWithHostAccessAdd the account number to Google links (Pin mode). This happens inside your browser.
storageSave your order, labels and settings on this device.
alarmsRefresh the account list every 15 minutes while Pin mode is on.
sidePanel (Chrome)Show the reorder steps next to Google's sign-in page.
webRequest, webRequestBlocking (Firefox only)Let Uzero's own account-list request reach Google.
scripting, tabs (Safari only)Find an open Google tab and run the account-list request inside it. Uzero only looks at the address of Google tabs.

On Chrome, Edge and Firefox, Uzero does not ask for access to all websites, your tabs list, cookies, or downloads.

On Safari, allow access to Google sites, or choose Always Allow on Every Website. Safari words the choice that way, but Uzero still asks only for the Google sites in the appendix. Safari does not apply header rules to an extension's own requests, so Uzero reads the account list by running the request inside an already open Google tab.

Uzero never acts in private or incognito windows, including Safari private windows.

The exact Google sites Uzero can access are listed in the appendix below.

7. How long data is kept, and how to delete it

Your data stays until you delete it. You can remove individual choices or delete everything:

We hold no copy, so there is nothing for us to delete.

8. Your rights

Data protection laws (for example the GDPR in the EU and UK, the CCPA in California, and the Data Privacy Act in the Philippines) give you rights to access, correct, delete and move your data. Because all Uzero data is on your device and under your control, you can use these rights directly in Uzero or by uninstalling it. We do not sell or "share" personal information, as those words are used in the CCPA.

9. Children

Uzero is not for children under 13, or under the minimum age in your country. It collects no data from anyone, so it collects none from children.

10. Security

Uzero asks for as few permissions as it can. It checks every internal message, loads no remote code, and keeps your data out of web pages. No software is fully secure. Keep your browser and operating system up to date.

11. Google API data and store policies

Uzero's use of information received from Google follows the Chrome Web Store User Data Policy, including the Limited Use requirements. On Firefox, the extension tells Mozilla that it collects no data (data_collection_permissions: none).

Uzero is an independent project. It is not made, endorsed or supported by Google. Google, Gmail and Google Drive are trademarks of Google LLC.

12. The uzero.app website

The extension and this website are separate. Everything above is about the extension. The website has one form, Notify me, which asks for your email and the browser you use. Nothing is sent unless you submit it. If you do, we keep:

This goes into one list Anvil Nine keeps on Cloudflare for all its products, so your address is stored once even if you sign up for more than one. We use it to email you when Uzero reaches your browser's store and, now and then, with news from Anvil Nine. Every email has an unsubscribe link. We never sell it or give it to anyone else. To see or delete what we hold, email [email protected].

13. Tips and purchases

Uzero itself collects nothing, whether you pay or not. If you choose to tip through Gumroad, Polar or Ko-fi, that service handles your payment under its own privacy policy, and we never see your card details. The service shares your name, email address, country and the amount with us. We keep them only for tax records and refunds, and we never sell them or give them to anyone else. To see or delete what we hold, email [email protected].

If you buy the Safari version on Apple's App Store, Apple handles the purchase under its own privacy policy and does not give us your name or email address.

14. Changes to this policy

If this policy changes, we update the effective date above and publish the new text on this page. If a change gives Uzero new access to your data, we will tell you in the extension's release notes before it takes effect.

15. Contact

Questions or requests: email [email protected]. Uzero is made by Anvil Nine (anvilnine.com).

Appendix: Google sites Uzero can access

Uzero's permission list contains these 44 sites only, over HTTPS, in every browser. Uzero uses them to read your account list (accounts.google.com) and to open Google links in the account you pick. www.google.com is there only for Google Maps links.