What does Yamato against do?

Yamato against focuses on adding a Yamato-themed visual experience to the Firefox browser. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use Yamato against?

Yamato against is a consumer product built for firefox users who enjoy One Piece themes.

Is Yamato against free?

Yes — Yamato against is free to use.

What platforms does Yamato against run on?

Yamato against runs on the web and embeddable surfaces.

Is Yamato against still maintained?

Unverified. Yamato against 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 Yamato against?

Similar projects tracked by PulseGate include Yamato advanced, Yamato character, and Yamato forces.

Who develops Yamato against?

Yamato against is developed by determination.

When did Yamato against launch?

Yamato against first shipped in 2026.

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Yamato against

Name: Yamato against
Author: determination

mozilla.orgBrowser DevTools & extensions

Yamato against is a Firefox browser extension centered on the Yamato character from One Piece. It provides a themed browser experience for Firefox users and does not require data collection according to its developer.

FreeWebEmbeddable

Visit mozilla.org

Overview

3 features

In the Browser DevTools & extensions space, Yamato against takes a focused approach. It focuses on adding a Yamato-themed visual experience to the Firefox browser. It is built as a consumer product for firefox users who enjoy One Piece themes. It is available for free. It runs on the web and embeddable surfaces.

It is developed by determination, and it first shipped in 2026. Among its 3 catalogued features are Firefox Extension, Yamato Theme, and No Data Collection. The interface is available in 32 languages, including Czech, German, and Greek.

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

Firefox Extension
Yamato Theme
No Data Collection

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

Indexed31 Aug · 21:04 UTC
Yamato against verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Yamato against

What does Yamato against do?: Yamato against focuses on adding a Yamato-themed visual experience to the Firefox browser. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Yamato against?: Yamato against is a consumer product built for firefox users who enjoy One Piece themes.
Is Yamato against free?: Yes — Yamato against is free to use.
What platforms does Yamato against run on?: Yamato against runs on the web and embeddable surfaces.
Is Yamato against still maintained?: Unverified. Yamato against 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 Yamato against?: Similar projects tracked by PulseGate include Yamato advanced, Yamato character, and Yamato forces.Yamato advanced Yamato character Yamato forces
Who develops Yamato against?: Yamato against is developed by determination.
When did Yamato against launch?: Yamato against first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 31 Aug 2026
Built for: Firefox users who enjoy One Piece themes
Model: B2C
Solves: Adding a Yamato-themed visual experience to the Firefox browser.

Registered as

Firefox Add-ons: yamato-against

Developer

determination

Index record

Indexed: 31 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 31 Aug 2026

Identity audit (13)

Slug: yamato-against-mozilla-org
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 31 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: 31 Aug 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/yamato-against

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