All extensions

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Noirvision

24/7 Film Noir channel of public-domain nostalgia.

No Spoiler Zone

Blocks movie spoilers on Reddit and Twitter.

Novel Tracker

Track where you stopped reading light novels across different websites.

Now Playing Music - Retro Player

YouTube MusicやSpotify、SoundCloudの再生中曲を平成レトロなプレイヤーで常時表示。前・再生/停止・次ボタン、タブ移動、6色カラー、ドラッグ移動付き。

Number Memory Test

A focused number memory test with classic, reverse, and one-by-one modes.

NumerologyCalc - Quick Calculator

Calculate Life Path, Expression, Soul Urge & Personality numbers instantly. Free numerology at your fingertips.

Numinous

Rate what you watch on YouTube. Your ratings live on your Letterboxd profile.

Nuro - Dual N-Back Master

Train your working memory with dual n-back cognitive exercises

Nyan-X 〜Xの投稿をネコ語に〜

X（Twitter）のタイムラインの投稿文をネコ語（語尾にゃん）に変換するにゃん🐾

NYT Crossword Sepia

Warm sepia tint and dimming for the NYT Crossword to ease eye strain on bright displays.

Okaka Verse

Start an Okaka Verse party and choose a streaming service.

Olé sin bover

Oculta todas las noticias de boca y river

omega share

Share the video on this page into an omega-share room.

Omen ESPN Connect

Fills Omen's ESPN connection form from your browser session. Local-only; you review and submit the form.

One-Button Rope Swing

A satisfying one-button rope swing physics game. Tap to attach and release.

One Last Game

One Last Game

One More Tab Club — AO3 Library

One More Tab Club is a personal library for your AO3 reading. This extension is the fastest way to fill it: a small chip appears on…

OneTube

Prevents multiple YouTube tabs by switching to an existing one

opCyberMartins

The opCyberMartians are a group of adventurous Martians residing in an untapped Martian world.

Open in Nuvio — Trakt, IMDb & Google

Open exact titles in Nuvio, jump between Trakt and IMDb, and optionally manage Trakt from Google.

Orphée

Extraire les musiques d'un mix YouTube et les ajouter une playlist Spotify

Ottoneu Six Picks to Streamfinder

Generates a Baseball-Reference Streamfinder config from Ottoneu Six Picks.

Overframe Mod Links

Add links to the warframe wiki for every mod and arcane shown on overframe.gg