# ASS Danmaku

> Download danmaku / comments in ASS format from AcFun, bilibili, and, Niconico. Watch video on supported site, and danmaku download button will appear on the right of address bar.

Canonical page: [https://chrome-stats.com/d/ass-danmaku](https://chrome-stats.com/d/ass-danmaku)

## Overview

- **ID:** `ass-danmaku`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** 田生
- **Category:** photos-music-videos,other
- **Daily users:** 232
- **Weekly downloads:** 4
- **Rating:** 4.44 / 5 (18 ratings)
- **Version:** 1.15
- **Last updated:** 2022-07-09
- **First published:** 2018-02-19
- **Size:** 42 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ass-danmaku/)
- **Website:** [https://github.com/tiansh/ass-danmaku/issues](https://github.com/tiansh/ass-danmaku/issues)

## Description

ASS Danmaku is a versatile Chrome extension designed to download danmaku (overlay comments) in ASS subtitle format from popular video sites including ニコニコ (niconico), AcFun, 哔哩哔哩 (bilibili), 巴哈姆特動畫瘋, and ひまわり動画. When watching videos on supported platforms, a convenient 'danmaku download' button appears to the right of the address bar, allowing users to quickly save danmaku subtitles.

The extension prioritizes user privacy by not sending or modifying any web requests and avoids any data collection. For enhanced usability, an online converter is available to convert downloaded XML or JSON danmaku files into the ASS format. Additionally, the project encourages community participation by inviting translations through their hosted platform. ASS Danmaku offers an efficient and privacy-conscious way to capture danmaku comments for personal viewing or editing.

## Rankings

- #7,604 — Overall
- #236 — expand

## Permissions and access

### Permissions

- `webRequest`
- `webRequestBlocking`
- `tabs`
- `downloads`
- `storage`
- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/ass-danmaku)