The Onion Notifier

Notify you when you visit a website that offer an .onion domain. Only intended for use with the Tor Browser based on Firefox 52 (version 7.0a3 and later).

There is a default database, but it can be edited by going to the addon options.

Suggest changes to the default database by filing an issue at: https://github.com/stefansundin/the-onion-notifier

To stop notifications for the duckduckgo search engine, consider installing this search engine that directly uses DDG's onion domain: https://addons.mozilla.org/firefox/addon/ddg-onion/

Manifest V2 Add-on
By:
Stefan Sundin
Daily users:
10 -1
Rating:
5.00
(1)
Version:
0.1.1resigned1 Last updated: 2024-04-25
Version code:
5728202
Creation date:
2017-05-22
Risk:
Moderate risk impact Low risk likelihood
Permissions:
  • tabs
  • notifications
  • storage
Size:
22.26KB
Email:
fi*****@stefansundin.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2025-07-20
Setup email notification for The Onion Notifier

Ranking

Extension safety

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.

The Onion Notifier requires a few sensitive permissions. 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.
  • Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
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.

The Onion Notifier 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 **** ********* *** **** **** *******
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