Zero

Name: Zero
Rating: 5 (4 reviews)
Author: Bluespace

The most secure password manager extension in the world. Fill passwords safely in browsers with Zero(formerly ID Guard Offline).

Download

Install

Features & Capabilities

Autofill your password in browser by scanning QR code with Zero(formerly ID Guard Offline) app on your phone. How does it work?

A QR code will show up when you open a web page with a login form.
Open Zero(formerly ID Guard Offline) app(not this extension) on your phone and scan the QR code.
Choose the account.
Your login form on the web page will be filled automatically.

How secure is it?

When filling password from your phone to the web page, your password is encrypted with a one time encryption key known only by this extension and the app on your phone. It can never be decrypted during the transmission on Internet.

Unlike most password manager extensions, this extension does not save any passwords. Your passwords are stored on your smartphone with security chip and sandbox protection. No password can be sent to the browser automatically unless you scan the QR code with the app on your smartphone. That means, no malicious desktop program or website can steal your passwords without your awareness.

Checkout our blog post https://www.bluespace.tech/blog/extension/

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

2022.12.29 Last updated: 2022-12-30

Version code:

5505816

Creation date:

2021-05-13

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

258.93KB

Email:

co*****@bluespace.tech

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-16

Compare stats and ranking:

Ranking

# 34,076 ▲ 1,615

Other rankings

#146 in password-protected keyword 49 ▼ 2#228 in smartphone keyword 2 ▼ 6#230 in offline keyword 21 ▲ 14

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:

Bluespace

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/zero-password-manager/

Email:

co*****@bluespace.tech

Website:

https://www.bluespace.tech

Is Zero 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.

Zero requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

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.

Zero has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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