Tab Harbor focuses on recovering Firefox browsing sessions after accidental closure or data loss. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Tab Harbor for?

Tab Harbor is a consumer product built for firefox users who need local browsing-session backups.

Does Tab Harbor have a free plan?

Yes — Tab Harbor is free to use.

What platforms does Tab Harbor run on?

Tab Harbor runs on the web and embeddable surfaces.

Is Tab Harbor still active?

Unverified. Tab Harbor 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 projects are similar to Tab Harbor?

Similar projects tracked by PulseGate include "Can I React?", HTML-Essentials, and AJAX Admin Navigation Sidebar AJAX.

Who makes Tab Harbor?

Tab Harbor is developed by HeathenAZ.

When did Tab Harbor launch?

Tab Harbor first shipped in 2026.

Back to the index

Tab Harbor

Name: Tab Harbor
Author: HeathenAZ

mozilla.orgBrowser DevTools & extensions

Tab Harbor backs up Firefox windows, tabs, and native tab groups on automatic or manual schedules. It supports named backups, selective restoration, recovery snapshots, retention controls, JSON import and export, and local-only storage for Firefox users.

FreeWebEmbeddable

Visit mozilla.org

Overview

10 features

Tab Harbor sits in PulseGate's Browser DevTools & extensions category. It focuses on recovering Firefox browsing sessions after accidental closure or data loss. Tab Harbor is a consumer product aimed at firefox users who need local browsing-session backups. It is available for free. Tab Harbor is available on the web and embeddable surfaces.

HeathenAZ builds and maintains Tab Harbor, and it first shipped in 2026. Among its 10 catalogued features are Automatic Backups, Manual Backups, and Named Backups. The interface is available in 32 languages, including Czech, German, and Greek.

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

Automatic Backups
Manual Backups
Named Backups
Tab Group Preservation
Selective Restoration
Recovery Snapshot
Backup Retention
JSON Import/Export
Theme Support
Local Storage

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed27 Aug · 16:01 UTC
Tab Harbor verified against its public source
Source: PulseGate · Open

Frequently asked questions about Tab Harbor

What is Tab Harbor?: Tab Harbor focuses on recovering Firefox browsing sessions after accidental closure or data loss. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Tab Harbor for?: Tab Harbor is a consumer product built for firefox users who need local browsing-session backups.
Does Tab Harbor have a free plan?: Yes — Tab Harbor is free to use.
What platforms does Tab Harbor run on?: Tab Harbor runs on the web and embeddable surfaces.
Is Tab Harbor still active?: Unverified. Tab Harbor 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 projects are similar to Tab Harbor?: Similar projects tracked by PulseGate include "Can I React?", HTML-Essentials, and AJAX Admin Navigation Sidebar AJAX."Can I React?"HTML-Essentials AJAX Admin Navigation Sidebar AJAX
Who makes Tab Harbor?: Tab Harbor is developed by HeathenAZ.
When did Tab Harbor launch?: Tab Harbor first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 27 Aug 2026
Built for: Firefox users who need local browsing-session backups
Model: B2C
Solves: Recovering Firefox browsing sessions after accidental closure or data loss.

Registered as

Firefox Add-ons: tab-harbor

Developer

HeathenAZ

Index record

Identity confidence: High · 95.6
Indexed: 27 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 27 Aug 2026

Identity audit (13)

Slug: tab-harbor-mozilla-org
Lifecycle state recorded: 27 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 27 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 27 Aug 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/tab-harbor

Ship this? Send a correction — no account, and you get a link to follow it.

Also in Browser DevTools & extensions

Same category — not a similarity match