piroor/treestyletab

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

3772 stars · 301 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Tree Style Tab is a Firefox WebExtensions add-on that displays browser tabs in a vertical sidebar as a tree, automatically nesting tabs opened from other tabs. It supports collapsing branches, drag-and-drop restructuring, and exposes an API for other add-ons.

Use cases

• show firefox tabs vertically in a sidebar
• organize tabs as a tree based on how they were opened
• collapse groups of related tabs to reduce clutter
• restructure tab hierarchy with drag and drop
• keep a visual browsing history while researching
• extend tab behavior from other firefox addons via its API

When to choose

• you use Firefox and open many tabs that you want grouped hierarchically
• you prefer a vertical tab bar in the sidebar
• you want mature, actively maintained tab-tree functionality

When to avoid

• you use Chrome, Edge, or another non-Firefox browser
• you only need simple vertical tabs without tree nesting
• you need a signed stable build for very old Firefox versions that are no longer supported

Facets

plugin · maturity active

browser-extension ui-components developer-tools browser-extensions web-development developer-tools browser browser-extension firefox-addon vertical-tabs tree-tabs webextensions sidebar tab-management

Member repositories

For agents

markdown · JSON · MCP: product_card(name="piroor/treestyletab")