Your browser data stays in your hands.
A plain-language guide to the Tabnivo 0.2.0 development build and this website. Last updated November 10, 2026.
Local extension data
Tabnivo stores settings, visit and activation timing, link-check results, protection choices, and recovery records in your current browser profile. It reads bookmarks, browser-provided visit times, and tab information to apply the rules you choose.
The extension has no account, remote backend, cloud-sync service, AI classification, or third-party analytics. Each browser profile runs independently. Archive and Trash are native bookmark folders; your browser's own bookmark-sync settings are separate from Tabnivo.
What happens during a link check
Link checks start when you choose Check links. Tabnivo then requests optional HTTP and HTTPS website access and sends requests to bookmark destinations to check whether they can be reached. Those sites may process the requests under their own privacy policies, including technical information such as your IP address.
These checks do not include login credentials, and Tabnivo does not save page content. Special browser addresses and obvious local or private-network destinations are skipped. A link check reports results; it does not automatically delete or move bookmarks.
Why these permissions are needed
| Permission | Purpose |
|---|---|
| Tabs | Track activation and protection, close idle tabs, and restore recorded tabs. |
| Bookmarks | Read, move, and restore native browser bookmarks. |
| History | Read available visit times and observe new visits to bookmarked URLs. |
| Storage | Keep settings, timing, and recovery records in the local profile. |
| Tab groups | Recreate recorded tab groups during restoration where possible. |
| Alarms | Schedule rule checks and clear expired tab records. |
| Website access · optional | Check bookmark destinations when you request a link check. |
Tabnivo does not operate in private or incognito windows. Missing visit history is treated as an unknown starting point, not proof that a bookmark has never been visited.
Recovery, retention, and backups
Before moving a bookmark or closing a tab, Tabnivo must save a local recovery record. If that fails, it stops the change. Closed-tab and legacy batch records are kept for 30 days. Bookmark-move recovery records are not cleared by that 30-day rule. Trash is not automatically emptied.
Export backup downloads a JSON file containing browser items, settings, timing, and recovery records. The file may contain private URLs and titles; keep it somewhere appropriate for that information. The current build does not offer one-click import.
Uninstalling Tabnivo or clearing its extension data removes its local records. It does not remove backup files you have already downloaded. Restoring tabs cannot recover unsaved forms, edits inside a page, or login state.
This website and its hosting
No third-party analytics have been added to this website. Visiting it does not give the site access to your browser bookmarks, history, tabs, or the extension's local records.
Website hosting is separate from extension storage. The hosting provider may process request information, such as IP addresses, requested pages, and technical logs, to deliver and protect the site.
Your controls
Change timing and pause automatic bookmark or tab care in Settings. Protect individual items to exclude them from automatic changes. Use your browser's extension settings to review access, disable Tabnivo, or uninstall it.
Ready to try it? Follow the installation guide.