# ASS Subtitle Player

> Play local .ass and .srt subtitles on any web video. Optimized for HiAnime with a sleek, modern UI and aspect ratio support.

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

## Overview

- **ID:** `ass-subtitle-player`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Kerim Demirkaynak
- **Category:** web-development,language-support
- **Daily users:** 119
- **Weekly downloads:** 13
- **Rating:** 4.00 / 5 (2 ratings)
- **Version:** 2.2.6
- **Last updated:** 2026-07-24
- **First published:** 2026-04-29
- **Size:** 35 KB
- **Data as of:** 2026-09-15
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ass-subtitle-player/)
- **Website:** [https://github.com/KerimDemirkaynak/ASS-Subtitle-Player](https://github.com/KerimDemirkaynak/ASS-Subtitle-Player)

## Description

Enhance your streaming experience with <strong>ASS Subtitle Player</strong>! This lightweight and powerful extension allows you to overlay your own local subtitle files onto any web-based video player.

Whether you are watching anime on <strong>HiAnime</strong> or enjoying content on other streaming platforms, this extension ensures you can use your preferred subtitles with professional-grade rendering.

✨ Key Features:
<ul><li><strong>Format Support:</strong> Full compatibility with <strong>.ass</strong>, <strong>.ssa</strong>, and <strong>.srt</strong> files.</li><li><strong>HiAnime Optimized:</strong> Specially designed to work within iframes, ensuring the subtitle picker triggers correctly even on complex video hosting sites.</li><li><strong>Modern Popup UI:</strong> A clean, distraction-free interface. No more messy buttons cluttering the video page—everything is managed from the extension panel.</li><li><strong>Aspect Ratio Toggle:</strong> Easily switch between <strong>16:9</strong> and <strong>4:3</strong> modes to prevent subtitles from overlapping with black bars.</li><li><strong>Clear Rendering:</strong> High-quality subtitle rendering with outlines and shadows for maximum readability.</li><li><strong>Mobile Friendly:</strong> Fully compatible with <strong>Firefox for Android</strong>.</li><li><strong>Privacy First:</strong> No data collection. Your subtitle files are processed entirely locally in your browser.</li></ul>
🚀 How to Use:
<ol><li>Navigate to any website with a video player (e.g., HiAnime).</li><li>Click the <strong>ASS Subtitle Player</strong> icon in your browser toolbar.</li><li>Click the <strong>"📁 Select Subtitle"</strong> button.</li><li>Choose your subtitle file from your device.</li><li>Sit back and enjoy!</li></ol>
💡 Why ASS Subtitle Player?

Many extensions struggle with modern video sites that use nested iframes. <strong>ASS Subtitle Player</strong> uses a smart broadcasting system to detect the video player wherever it is hidden on the page, providing a seamless "plug-and-play" experience.

## Rankings

- #10,786 — Overall
- #60 — player
- #131 — optimize
- #145 — play

## Permissions and access

### Permissions

- `activeTab`
- `scripting`
- `storage`
- `unlimitedStorage`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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-subtitle-player)