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Extension version: 2.0.1
Last verified: April 09, 2026 (generated from the current Chrome Web Store build audit)
Tabberwocky Tab Defenestrator (TTD) is a Chrome extension that helps you access, organize, and clean up your open tabs via a side panel. All data is stored locally in your browser using Chrome's storage API. Nothing is transmitted externally.

What Data TTD Accesses

TTD reads the following information so it can show and organize your tabs in the side panel:

Data Why
Current window details Used to show which browser window is currently focused.
Favicon availability Used to refresh Chrome's built-in favicon service when a site icon becomes available.
Tab group details Used to show tab groups and their titles, colors, and collapsed state.
Tab state Used to show which tab is active, pinned, recent, or in a specific window position.
Tab titles Shown in the side panel so you can recognize each tab.
Tab URLs Shown in the side panel and used to group tabs and spot duplicates.

This information comes from Chrome's own tab, tab-group, and window APIs. TTD does not access page content, cookies, browsing history, passwords, or any data within web pages.

What TTD Stores

All data is stored locally in your browser using Chrome's storage API. Nothing is transmitted externally.

What Persistence Contains User Data? Storage Key
A cached snapshot of your current tabs and tab groups so the side panel can render quickly. Updates as your tabs change. Deleted when you remove TTD. Yes t650-state
Your current view mode state (Window or Site). Updates as you use TTD. Deleted when you remove TTD. No viewPref
Your sidepanel setting for displaying tab URLs below tab titles. Updates as you use TTD. Deleted when you remove TTD. No showUrls
Your sidepanel setting for displaying icon strips for collapsed Windows. Updates as you use TTD. Deleted when you remove TTD. No showIconStrips
Which groups are collapsed in the current browser session. Cleared when Chrome closes. No t650-collapse
Scroll position for the current browser session. Cleared when Chrome closes. No t650-scroll
How site groups are sorted in the current browser session. Cleared when Chrome closes. No t650-site-order

The tab snapshot (t650-state) is the only storage entry that contains user data. It holds a copy of your currently open tab URLs and titles so the side panel can display them. This snapshot is overwritten every time your tabs change and is deleted when you remove TTD.

What TTD Does NOT Do

  • No network requests. TTD makes zero outbound network requests. Your TTD tab data never leaves your browser.
  • No analytics or telemetry. No usage tracking, no event logging, and no crash reporting.
  • No advertising. No ad SDKs, tracking pixels, or behavioral profiling code.
  • No remote code. TTD runs entirely from code bundled at install time. No code is loaded from external servers.
  • No content scripts. TTD does not inject scripts into web pages.
  • No browsing history access. TTD sees only currently open tabs, not your browsing history.
  • No page content access. TTD cannot read the content of web pages you visit.
  • No cookies, passwords, or form data. TTD has no access to these.
  • No data selling or sharing. Your data is not sold, shared with, or transferred to any third party.

Permissions Explained

TTD requests only the permissions it needs to function. No host permissions (access to specific websites) are requested.

Permission What It Allows Why It's Needed
sidePanel Shows TTD in Chrome's side panel. Needed so you can manage tabs without leaving the current page.
tabs Reads and updates your open tab list. Needed to show tabs, switch to them, close duplicates, and move tabs between windows.
storage Stores TTD settings and cached extension state in Chrome storage. Needed to remember your preferences and keep the side panel in sync.
favicon Loads site icons through Chrome's built-in favicon service. Needed to show favicons next to tabs.
contextMenus Adds Tabberwocky items to Chrome menus. Needed for quick access to About and related actions.
tabGroups Reads Chrome tab-group details. Needed to show group titles, colors, and collapsed state in the side panel.

URL Processing

To compare possible duplicates, TTD removes common tracking parameters before matching URLs.

TTD currently strips these tracking parameters before duplicate comparison:

fbclid, gclid, utm_campaign, utm_content, utm_creative_format, utm_id, utm_marketing_tactic, utm_medium, utm_source, utm_source_platform, utm_term

Third-Party Connections

TTD does not send tab data to external services. The packaged build does include these normal website destinations:

  • tabberwocky.org — Opened by the extension in a new browser tab.

Your Controls

  • Remove TTD: Uninstalling TTD removes its stored extension data from Chrome.
  • Review permissions: Open Tabberwocky's details page in chrome://extensions to review the permissions it has been granted.
  • Disable temporarily: You can turn the extension off in chrome://extensions without uninstalling it.

Data Retention

Data Category Retention
Session state Cleared automatically when Chrome closes.
Saved preferences and cached state Updates as you use TTD and is removed when you uninstall TTD.

Chrome removes extension storage when you uninstall the extension.

Chrome Web Store Compliance

This policy combines a code audit of the extension with the developer's stated data-handling practices.

Requirement Status How It's Checked
No remote code execution Pass Checked from the packaged extension code.
No programmatic data transfer Pass Checked from the packaged build.
No data selling or sharing Pass Covered by the developer's privacy commitments.

Changes to This Policy

This privacy policy is regenerated from the current Chrome Web Store build and the current privacy attestations whenever TTD's privacy behavior changes.

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