YouTube NimiNightmareify

Name: YouTube NimiNightmareify
Rating: 5 (1 reviews)
Author: ZeppelinsForever

By: ZeppelinsForever

Modify YouTube thumbnails to include the hit VTuber Nimi Nightmare!

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Install

Features & Capabilities

Enhance your browsing experience with NimiNightmarefy! Is your browser experience not nightmarish enough? Have an abundance of free time and an absence of yapping? Are you having trouble finding your oshi? Not enough UUUUUUUUUUUUUU in your life?

Fear no more.

This extension adds the famous VTuber Nimi Nightmare to every thumbnail!

Please note that this extension is in no way affiliated with Nimi Nightmare, this is a simple fan project.

This extension is based on MrBeastify YouTube, and is a fork of his work. Please check out the source of this extension at https://github.com/MagicJinn/MrBeastify-Youtube

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.0.7 Last updated: 2025-09-02

Version code:

6026165

Creation date:

2025-05-05

Risk:

Permissions:

storage
*://*.youtube.com/*

Content scripts matches:

*.youtube.com

Size:

33.67MB

Email:

ze*****@proton.me

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 36,979 ▲ 2,224

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:

ZeppelinsForever

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/youtube-niminightmareify/

Email:

ze*****@proton.me

Website:

https://github.com/Zeppelins-Forever/NimiNightmareify-Youtube

User Reviews

brilliant, incredible, amazing, life chaning, show stopping, spectacular, never the same, totally unique.

by Da*****, 2025-07-22

View all user reviews ›

Is YouTube NimiNightmareify 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.

YouTube NimiNightmareify requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: youtube.com
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.

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

Risk likelihood analysis details

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