Tetrys focuses on providing a free, ad-free falling-block puzzle game that can be played in Firefox. It is catalogued under Casual & match puzzles on PulseGate.

Who should use Tetrys?

Tetrys is a consumer product built for firefox users who enjoy casual puzzle games.

What platforms does Tetrys run on?

Tetrys runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Is Tetrys still active?

Unverified. Tetrys 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 Tetrys?

Similar projects tracked by PulseGate include Color Pin Block, Wordscapes Search - Word Game, and Goods Match 3D:Sorting Games.

Back to the index

Tetrys

Name: Tetrys
Author: ben

mozilla.orgCasual & match puzzles

Tetrys is a Firefox extension that provides an ad-free falling-block puzzle game based on the classic Tetris-style format. It is intended for casual players who want to play directly in their browser.

FreeWebEmbeddablemacOSWindowsLinux

Visit mozilla.org

Overview

5 features

Tetrys is a Casual & match puzzles project. It focuses on providing a free, ad-free falling-block puzzle game that can be played in Firefox. Tetrys is a consumer product aimed at firefox users who enjoy casual puzzle games. Tetrys is free to use. It ships for the web, embeddable surfaces, macOS, Windows, and Linux.

ben builds and maintains Tetrys, and it first shipped in 2020. Among its 5 catalogued features are falling blocks, ad-free gameplay, and firefox extension. The interface is available in 32 languages, including Czech, German, and Greek.

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

Falling blocks
Ad-free gameplay
Firefox extension
Puzzle gameplay
Offline play

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

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 · 15:55 UTC
Tetrys verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Tetrys

What is Tetrys?: Tetrys focuses on providing a free, ad-free falling-block puzzle game that can be played in Firefox. It is catalogued under Casual & match puzzles on PulseGate.
Who should use Tetrys?: Tetrys is a consumer product built for firefox users who enjoy casual puzzle games.
Is Tetrys free?: Yes — Tetrys is free to use.
What platforms does Tetrys run on?: Tetrys runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Tetrys still active?: Unverified. Tetrys 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 Tetrys?: Similar projects tracked by PulseGate include Color Pin Block, Wordscapes Search - Word Game, and Goods Match 3D:Sorting Games.Color Pin Block Wordscapes Search - Word Game Goods Match 3D:Sorting Games
Who makes Tetrys?: Tetrys is developed by ben.
When did Tetrys launch?: Tetrys first shipped in 2020.

At a glance

Pricing: Free
Platforms: Web
First seen: 8 Sept 2026
Built for: Firefox users who enjoy casual puzzle games
Model: B2C
Solves: Providing a free, ad-free falling-block puzzle game that can be played in Firefox.

Registered as

Firefox Add-ons: tetrys

Developer

ben

Index record

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

Identity audit (13)

Slug: tetrys-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 (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: 8 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/tetrys

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

Also in Casual & match puzzles

Same category — not a similarity match