Castorus

Name: Castorus
Rating: 4.1026 (78 reviews)
Author: Castorus

Castorus est un outil de suivi communautaire d'annonces immobilières. Castorus retient pour vous les éléments essentiels des annonces que vous consultez. Il vous indique l'évolution du prix de l'annonce, les éventuelles modifications, etc..

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Features & Capabilities

Castorus est une extension Chrome intuitive dédiée au suivi communautaire d'annonces immobilières. En l'installant, vous bénéficiez d'un historique complet des annonces immobilières que vous consultez grâce aux données anonymes partagées par la communauté d'utilisateurs. Castorus vous informe de l'évolution des prix, des modifications éventuelles, des autres liens où l'annonce est visible, ainsi que des options de financement disponibles.

Depuis la version 2.1, Castorus intègre aussi un analyseur de prix en temps réel applicable aux produits des sites marchands, vous aidant à trouver le meilleur prix facilement. Compatible avec Firefox for Android à partir de la version 54, Castorus garantit la protection des données personnelles en ne fonctionnant que sur des sites professionnels immobiliers.

User Growth & Download Statistics

Add-on Privacy & Security

By:

Daily users:

Rating:

Version:

5.22 Last updated: 2026-06-19

Version code:

6314183

Creation date:

2013-07-10

Risk:

Permissions:

Host permissions:

*://*.castorus.com/*
<all_urls>

Content scripts matches:

<all_urls>

Size:

180.13KB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-20

Compare stats and ranking:

Ranking

# 1,170 ▼ 25

Other rankings

#47 in Shopping ▼ 3

#123 in Search Tools ▼ 6

#17 in store keyword 61 ▼ 1

#30 in story keyword 31

#31 in financing keyword 4 ▼ 2

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Other platforms

Castorus (v5.16)

60,000 3.58

(131)

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:

Castorus

Firefox Add-ons Store

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

Website:

https://www.castorus.com

Permission Change History

2026-02-04: Version 4.0.61 → 5.11

Add Host permissions: *://*.castorus.com/* <all_urls>

Add Permissions: scripting alarms management

Remove Permissions: webNavigation http://*/* https://*/*

User Reviews

Users appreciate that the Castorus Firefox add-on clearly defines the realities of the market, offering realistic and reliable insights. No significant issues or cons were noted in the reviews.

Pros

Provides an accurate representation of the market reality

Cons

Recent reviews

by Mi*****, 2025-02-02

by gl*****, 2025-01-05

by Fi*****, 2024-11-16

View all user reviews ›

Is Castorus 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.

Castorus 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.

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

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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