SubNet Classer

Name: SubNet Classer
Author: Libor Benes (Dr. B)

By: Libor Benes (Dr. B)

Analyze IPv4 addresses for class, CIDR, binary, mask, wildcard, hosts, and subnets.

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Features & Capabilities

Accurate IPv4 analyzer, complementing SubNet Calc. • Enter an IPv4 address and optional CIDR (e.g., 192.168.1.1/24) to get detailed output. • Copy results as plain text for documentation or monospaced editors (e.g., Notepad++, Excel). • View IPv4 class table.

Security Prioritization: • Minimal Design: Compact sidebar. • Offline Operation: All calculations are local, ensuring privacy. No user data is collected or transmitted. • Minimal Permissions. • Safe Coding. • Mozilla Compliance. • Safe Error Handling. • No Dependencies.

User Growth & Download Statistics

Add-on

By:

Libor Benes (Dr. B)

Daily users:

Version:

1.0 Last updated: 2025-08-19

Version code:

6013685

Creation date:

2025-08-16

Risk:

Permissions:

Size:

17.54KB

Email:

Be*****@iwp.edu

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 130,288 ▲ 843

For Developers

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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:

Libor Benes (Dr. B)

Firefox Add-ons Store

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

Email:

Be*****@iwp.edu

Website:

https://www.linkedin.com/in/LiborBenes

Is SubNet Classer 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.

SubNet Classer requires very minimum permissions.

Risk impact analysis details

High Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy risk.

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.

SubNet Classer may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension website URL may be invalid
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