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TabZap

github.comBrowser DevTools & extensions

No liveness check has reached it yet; it is registered on Firefox Add-ons and has been in the index since 9 Oct 2026. How this is checked

TabZap is an open-source browser extension that detects duplicate tabs in the current window and closes them with one click. It keeps the oldest instance of each page and reports how many tabs were closed.

Inferred · not functionally tested

Open SourceWebEmbeddable
TabZap preview
Visit github.com

Overview

5 features

Purpose: Removing duplicate browser tabs without manually finding and closing them.

Inferred · not functionally tested

Audience: people who manage many browser tabs

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: open_source · license: Open Source · platforms: WEB · deployment: browser, embeddable

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: github.com · addons.mozilla.org. These links do not verify the individual claims.

In the Browser DevTools & extensions space, TabZap takes a focused approach. Inferred · not functionally tested: It focuses on removing duplicate browser tabs without manually finding and closing them. Inferred · not functionally tested: It is built as an open-source project for people who manage many browser tabs. Basis unknown · not verified: TabZap is open source under the Open Source license. Basis unknown · not verified: TabZap is available on the web and embeddable surfaces.

Behind TabZap is BlacksGit, and it first shipped in 2026. Inferred · not functionally tested: Key capabilities include duplicate detection, one-click cleanup, and oldest-tab retention.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Duplicate detection
  • One-click cleanup
  • Oldest-tab retention
  • Closed-tab count
  • Current-window cleanup

Topics: Inferred · not functionally tested

Tags
duplicate-tab-cleanupbrowser-tab-managementfirefox-extension

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserEmbeddable

Trust & compliance

License
Open Source
Public signals
HTTPSPrivacy PolicyTerms of ServiceOpen SourceFree tierStore listing found
Legal
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Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed9 Oct · 03:27 UTC
    TabZap - Close Duplicate Tabs seen via Firefox Add-ons
    Source: Firefox Add-ons · Open

Frequently asked questions about TabZap

What does TabZap do?
Inferred · not functionally tested: TabZap focuses on removing duplicate browser tabs without manually finding and closing them. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use TabZap?
Inferred · not functionally tested: TabZap is an open-source project built for people who manage many browser tabs.
Does TabZap have a free plan?
Basis unknown · not verified: Yes — TabZap is open source under the Open Source license and free to use.
What platforms does TabZap run on?
Basis unknown · not verified: TabZap runs on the web and embeddable surfaces.
Is TabZap still maintained?
Unverified. TabZap has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to TabZap?
Similar projects tracked by PulseGate include Close duplicate tabs, Duplicate Tab Closer, and Duplicate Tab Closer.Close duplicate tabsDuplicate Tab CloserDuplicate Tab Closer
Who develops TabZap?
TabZap is developed by BlacksGit.
When did TabZap launch?
TabZap first shipped in 2026.

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