Who should use AdDefender?

AdDefender is a consumer product built for firefox users seeking ad and tracker blocking.

Does AdDefender have a free plan?

Yes — AdDefender is free to use.

What platforms does AdDefender run on?

AdDefender runs on the web, embeddable surfaces, and Android.

Is AdDefender still active?

Unverified. AdDefender 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 AdDefender?

Similar projects tracked by PulseGate include AD Blocker add-on, Simple AD-Block, and Adblocker.

Who makes AdDefender?

AdDefender is developed by Simple Inc.

How long has AdDefender been around?

AdDefender first shipped in 2024.

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AdDefender

Name: AdDefender
Author: Simple Inc.

mozilla.orgBrowser DevTools & extensions

AdDefender - AdBlocker is a Firefox browser extension that blocks advertisements across websites, including social media and video platforms. It also provides anti-tracking and privacy-oriented protection for Firefox users, including Firefox for Android.

FreeWebEmbeddableAndroid

Visit mozilla.org

Overview

7 features

In the Browser DevTools & extensions space, AdDefender takes a focused approach. It focuses on blocking intrusive advertisements and online trackers while browsing websites. It is built as a consumer product for firefox users seeking ad and tracker blocking. It is available for free. AdDefender is available on the web, embeddable surfaces, and Android.

It is developed by Simple Inc., and it first shipped in 2024. Key capabilities include ad blocking, tracker blocking, and anti-malware protection. The interface is available in 32 languages, including Czech, German, and Greek.

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

Ad blocking
Tracker blocking
Anti-malware protection
Privacy protection
Facebook ad blocking
YouTube ad blocking
Firefox for Android

Built with & integrations

Runs on

BrowserEmbeddableAndroid

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 10:29 UTC
AdDefender - AdBlocker verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about AdDefender

What is AdDefender?: AdDefender focuses on blocking intrusive advertisements and online trackers while browsing websites. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use AdDefender?: AdDefender is a consumer product built for firefox users seeking ad and tracker blocking.
Does AdDefender have a free plan?: Yes — AdDefender is free to use.
What platforms does AdDefender run on?: AdDefender runs on the web, embeddable surfaces, and Android.
Is AdDefender still active?: Unverified. AdDefender 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 AdDefender?: Similar projects tracked by PulseGate include AD Blocker add-on, Simple AD-Block, and Adblocker.AD Blocker add-on Simple AD-Block Adblocker
Who makes AdDefender?: AdDefender is developed by Simple Inc.
How long has AdDefender been around?: AdDefender first shipped in 2024.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users seeking ad and tracker blocking
Model: B2C
Solves: Blocking intrusive advertisements and online trackers while browsing websites.

Registered as

Firefox Add-ons: addefender-adblocker

Developer

Simple Inc.

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
Last seen: 8 Sept 2026

Identity audit (13)

Slug: addefender-adblocker-mozilla-org
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
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: 8 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/addefender-adblocker

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