Dr.Maggot, from sakana, is a Firefox browser extension that moderates and cleans live-stream chat for viewers and moderators. It offers message filtering and interface controls so users can hide or remove unwanted text, enforce character and emote limits, and overlay chat as scrolling on-screen comments. Settings cover username handling, visual tweaks and a pseudo-subscriber mode. The tool suits viewers who want quieter chat and moderators who want local control during streams.

What kind of tool is this and where it runs?

The extension operates entirely in the browser and targets the web versions of major streaming sites, so it alters chat presentation on the client side rather than the channel server. You open configuration by clicking the extension icon in the browser toolbar while on a supported stream. The developer builds the project as a lightweight enhancement focused on chat, not a full streaming client replacement.

How broad is platform support and what stands out visually?

The standout feature is the on-screen, danmaku-style chat overlay, which moves comments across the video for a different viewing rhythm. The extension also supports multiple sites, including:

• YouTube
• Twitch
• Kick
• OPENREC
• TwitCasting

This range makes the tool useful across a variety of channels without tying you to a single platform.

How do setup, automation and community response shape the experience?

Settings are reachable directly from the toolbar icon, letting users adjust name display, striped coloring, fonts and message limits without leaving the stream. The tool includes an automation option for clicking Twitch bonus icons, which reduces repetitive clicks during long sessions. The extension is generally well received on extension stores, with users noting it cleans busy chats and simplifies small tasks.

An approachable pick for regular desktop stream viewers and local moderators

The extension is a practical choice for people who spend time in crowded browser-based chats and want per-client control over appearance and noise. It rewards users willing to tweak settings to taste and those who watch streams in a desktop browser; those who consume streams outside the browser get little benefit from this approach.