AltMail

Name: AltMail
Author: Calpurnia

Avoid spam and protect your personal inbox with temporary email addresses. Autofill email fields in one click, check incoming email directly from the extension, and receive instant notifications when a new OTP code arrives.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-07-27

Version:

0.1.2

Last updated: 2026-07-20

Features & Capabilities

Avoid spam with temporary email addresses

AltMail helps protect your personal inbox when signing up for websites and online services.

Features

Create a custom temporary address or generate a new one instantly
Autofill email fields with one click
Check your inbox directly from the extension
Receive emails and attachments up to 10 MB
Automatically detect OTP and verification codes
Get instant notifications when a new OTP code arrives
Reuse a previously created address easily
Delete emails manually at any time
Emails are automatically deleted after 24 hours
No account or registration required

The service is designed for receiving emails only and cannot send or reply to messages.

User Growth & Download Statistics

Add-on

By:

Calpurnia

Daily users:

Version:

0.1.2 Last updated: 2026-07-20

Version code:

6365361

Creation date:

2026-07-14

Risk:

Permissions:

Host permissions:

https://altmail.org/*

Content scripts matches:

<all_urls>

Size:

61.78KB

Email:

co*****@altmail.org

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-27

Compare stats and ranking:

Ranking

# 117,345 ▲ 1,243

Other rankings

#161 in hotmail keyword 5 ▲ 3

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:

Calpurnia

Firefox Add-ons Store

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

Email:

co*****@altmail.org

Website:

https://altmail.org/en/

Is AltMail 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.

AltMail requires some sensitive permissions that could impact your browser and data security. 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.
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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.

AltMail is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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