Bello Tree Style Tab Icon
Chrome MV3 alpha 0.0.32

Bello Tree Style Tab

Tree-style tab management for Chrome and Chromium. Organize tabs as parent and child branches, collapse noisy trails, and manage them from Chrome's side panel with faster startup rendering and reliable new-tab visibility. This release is still in alpha and is not stable yet.

Download ZIP Install Guide

Currently in Alpha — expect rough edges and behavior changes

Bello Tree Style Tab sidebar showing nested tab branches in Chrome

Key Features

Tabbed Browsing As A Tree

Keep search results, research trails, and related work grouped as parent and child tabs instead of a flat strip.

Collapse And Expand Branches

Hide entire branches when you need focus and reopen them instantly when you need the context back.

Sidebar Focus Sync

Clicking the sidebar activates the right browser tab, and browser focus changes are reflected back in the sidebar.

Simple Chrome Side Panel

The current release focuses on a clean left-side panel for browsing your tab tree without extra configuration surfaces.

Pinned Tabs That Stay Manageable

Pinned tabs stay compact and ordered so they do not overwhelm the rest of the vertical tab tree.

Open Source Chrome Build

This release packages the Chrome MV3 port as a downloadable, unpacked-friendly extension you can inspect and load locally.

Install In Chrome

  1. Download BelloTreeStyleTab-Chrome-0.0.32.zip and unzip it anywhere on disk.
  2. Open chrome://extensions in Chrome, Chromium, Edge, or Brave.
  3. Enable Developer mode in the top-right corner.
  4. Click Load unpacked and select the extracted BelloTreeStyleTab-Chrome-0.0.32 folder.

What This Release Includes