Who is RAR Opener for?

RAR Opener is a consumer product built for firefox users who need offline archive extraction.

Yes — RAR Opener is free to use.

What platforms does RAR Opener run on?

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

Is RAR Opener still maintained?

Unverified. RAR Opener 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.

Who makes RAR Opener?

RAR Opener is developed by cellar.jp.net-LOTO188.

When did RAR Opener launch?

RAR Opener first shipped in 2025.

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RAR Opener

Name: RAR Opener
Author: cellar.jp.net-LOTO188

mozilla.orgOther file storage

RAR Opener is a Firefox extension for opening, downloading, and extracting RAR and ZIP archives. It is designed to work offline on Windows, Linux, and macOS, keeping archive contents on the user's device.

FreeWebEmbeddablemacOSWindowsLinux

Visit mozilla.org

Overview

6 features

In the Other file storage space, RAR Opener takes a focused approach. It focuses on opening and extracting RAR and ZIP archives without uploading private files to a server. It is built as a consumer product for firefox users who need offline archive extraction. It is available for free. It ships for the web, embeddable surfaces, macOS, Windows, and Linux.

It is developed by cellar.jp.net-LOTO188, and it first shipped in 2025. Among its 6 catalogued features are RAR extraction, ZIP extraction, and offline operation. The interface is available in 32 languages, including Czech, German, and Greek.

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

RAR extraction
ZIP extraction
Offline operation
File downloading
Cross-platform support
Private processing

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

Indexed13 Sep · 07:19 UTC
RAR Opener verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about RAR Opener

What is RAR Opener?: RAR Opener focuses on opening and extracting RAR and ZIP archives without uploading private files to a server. It is catalogued under Other file storage on PulseGate.
Who is RAR Opener for?: RAR Opener is a consumer product built for firefox users who need offline archive extraction.
Is RAR Opener free?: Yes — RAR Opener is free to use.
What platforms does RAR Opener run on?: RAR Opener runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is RAR Opener still maintained?: Unverified. RAR Opener 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.
Who makes RAR Opener?: RAR Opener is developed by cellar.jp.net-LOTO188.
When did RAR Opener launch?: RAR Opener first shipped in 2025.
What languages does RAR Opener support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who need offline archive extraction
Model: B2C
Solves: Opening and extracting RAR and ZIP archives without uploading private files to a server.

Registered as

Firefox Add-ons: rar-opener

Developer

cellar.jp.net-LOTO188

Index record

Indexed: 13 Sep 2026
Lifecycle: Alive
Last seen: 13 Sep 2026

Identity audit (13)

Slug: rar-opener-mozilla-org
Lifecycle state recorded: 13 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 13 Sep 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: 13 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/rar-opener

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