CRX Installer

Name: CRX Installer
Rating: 4.7857 (28 reviews)
Author: FoxRefire

By: FoxRefire

Install Chrome extension to Zen/Firefox nightly/Librewolf

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Install

Features & Capabilities

CRX Installer helps you port Chrome extensions to Firefox-family browsers, including Zen, Firefox Nightly, Firefox Developer Edition, and Librewolf. It provides a guided path for cross-browser installation and compatibility.

Important: For Firefox-based browsers other than Zen, you may need to set xpinstall.signatures.required to false in about:config. Use this tool at your own risk; installing untrusted extensions can pose security risks. Source code: https://github.com/FoxRefire/ChromeXPIPorter

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security Open Source Programming

By:

Daily users:

Rating:

Version:

3.3 Last updated: 2025-11-27

Version code:

6085002

Creation date:

2024-09-17

Risk:

Permissions:

management
tabs
contextualIdentities
storage

Host permissions:

*://clients2.google.com/*
*://clients2.googleusercontent.com/*

Content scripts matches:

chromewebstore.google.com

Size:

81.04KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 2,210 ▲ 60

Other rankings

#184 in Download Management ▲ 5

#247 in Web Development ▲ 7

#1 in install keyword 92

#1 in uninstall keyword 46

#10 in gallery keyword 8 ▼ 1

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For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

FoxRefire

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/crxinstaller/

Website:

https://github.com/FoxRefire/ChromeXPIPorter

Permission Change History

2025-11-27: Version 3.1 → 3.3

Add Permissions: contextualIdentities storage

2025-08-16: Version 1.6 → 2.0

Add Permissions: tabs

User Reviews

CRX Installer lets Firefox Nightly users install Chrome Web Store extensions, and even works on Android Nightly and forks like Floorp, acting as a replacement for the old Chrome Store Foxified. Reviews praise the core capability and ease of use, while noting it cannot fix regular Firefox’s restrictions. A major caveat is the need to set xpinstall.signatures.required to false, which raises security concerns and isn’t default. Some users also report Zen Browser compatibility issues and mixed reliability across environments. Overall, a useful workaround with clear caveats.

Pros

Enables installing Chrome Web Store extensions in Firefox Nightly (and some forks like Floorp) and on Android Nightly.
Works well in Firefox Nightly and Android Nightly, circumventing regular Firefox restrictions.
Functions as a replacement for the now-defunct Chrome Store Foxified, delivering familiar workflow.
Simple to use once installed, with a straightforward usage flow.
Cross-browser compatibility, including Floorp, per user reports.

Cons

Does not work in regular Firefox due to Mozilla restrictions.
Requires disabling xpinstall.signatures.required (xpinstall) to install non-repo add-ons; not enabled by default and carries security concerns.
Inconsistent compatibility on Zen Browser, with some users reporting it doesn't work there.
Reliability can vary across environments, with some installations failing or behaving differently.

Recent reviews

i installed this to work with. classsic firefox, only to see that it needs more steps , and i use a mac.

by Ni*****, 2026-06-14

It works, thank you

by Fi*****, 2026-03-26

I tried on regular firefox and tried to install Line from Chrome web store, instead it downloaded ported version instead, do I need to clear cache or something first?

by Ji*****, 2026-03-01

View all user reviews ›

Is CRX Installer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

CRX Installer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

CRX Installer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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