Who is Niconico-PepperMint+ for?

Niconico-PepperMint+ is a consumer product built for niconico video viewers using Firefox.

Does Niconico-PepperMint+ have a free plan?

Yes — Niconico-PepperMint+ is free to use.

What platforms does Niconico-PepperMint+ run on?

Niconico-PepperMint+ runs on the web and embeddable surfaces.

Is Niconico-PepperMint+ still active?

The GitHub repository shows 9 commits in the last 90 days.

Who makes Niconico-PepperMint+?

Niconico-PepperMint+ is developed by CYakigasi.

How long has Niconico-PepperMint+ been around?

Niconico-PepperMint+ first shipped in 2023.

Is Niconico-PepperMint+ open source?

Niconico-PepperMint+ has a public GitHub repository.

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Niconico-PepperMint+

Name: Niconico-PepperMint+
Author: CYakigasi

mozilla.orgBrowser DevTools & extensions

Niconico-PepperMint+ is a Firefox extension that enhances nicovideo.jp with features such as dark mode, series bookmarks, and a two-column video-page layout. Users can enable or disable most features through quick settings or the extension preferences.

FreeMITWebEmbeddable

Visit mozilla.org

32stars

2forks

6features

2023since

Overview

6 features

Niconico-PepperMint+ sits in PulseGate's Browser DevTools & extensions category. It focuses on improving Niconico video browsing with customizable layouts, dark mode, bookmarks, and other interface enhancements. Niconico-PepperMint+ is a consumer product aimed at niconico video viewers using Firefox. It is available for free. Niconico-PepperMint+ is available on the web and embeddable surfaces.

Behind Niconico-PepperMint+ is CYakigasi, and it first shipped in 2023. Development happens publicly on GitHub with 32 stars and 9 commits in the last 90 days. Among its 6 catalogued features are Dark Mode, Series Bookmarks, and Two-column Layout. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Dark Mode
Series Bookmarks
Two-column Layout
Quick Settings
Toggleable Features
Niconico Enhancements

Built with & integrations

Framework

React

Connectors

github

Runs on

BrowserEmbeddable

Trust & compliance

License

MIT

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierGitHub · ★ 32Active maintenanceMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed10 Sept · 15:11 UTC
Niconico-PepperMint+ verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Niconico-PepperMint+

What is Niconico-PepperMint+?: Niconico-PepperMint+ focuses on improving Niconico video browsing with customizable layouts, dark mode, bookmarks, and other interface enhancements. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Niconico-PepperMint+ for?: Niconico-PepperMint+ is a consumer product built for niconico video viewers using Firefox.
Does Niconico-PepperMint+ have a free plan?: Yes — Niconico-PepperMint+ is free to use.
What platforms does Niconico-PepperMint+ run on?: Niconico-PepperMint+ runs on the web and embeddable surfaces.
Is Niconico-PepperMint+ still active?: The GitHub repository shows 9 commits in the last 90 days.
Who makes Niconico-PepperMint+?: Niconico-PepperMint+ is developed by CYakigasi.
How long has Niconico-PepperMint+ been around?: Niconico-PepperMint+ first shipped in 2023.
Is Niconico-PepperMint+ open source?: Niconico-PepperMint+ has a public GitHub repository.

At a glance

Pricing: Free
Platforms: Web
Open source: Yes · ★ 32
License: MIT
Built for: Niconico video viewers using Firefox
Model: B2C
Solves: Improving Niconico video browsing with customizable layouts, dark mode, bookmarks, and other interface enhancements.

Registered as

GitHub: castella-cake/niconico-peppermint-extension
Firefox Add-ons: niconico-peppermint

Developer

CYakigasi

Small team

GitHub

Open source

View on GitHub

Stars: 32
Forks: 2
Open issues: 9
Last commit: 25 Aug 2026
Commits 90d: 9
Contributors: 3
Authorship: Small team
Default branch: master
Latest release: v3.1.13 · 25 Aug 2026

Index record

Indexed: 10 Sept 2026
Lifecycle: Alive
Last seen: 10 Sept 2026

Identity audit (13)

Slug: niconico-peppermint-mozilla-org
Lifecycle state recorded: 10 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 10 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/niconico-peppermint

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