ASS Subtitle Player by Kerim Demirkaynak

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ASS Subtitle Player version history - 3 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 2.1.1
Released Jun 20, 2026 - 33.68 KB
Works with firefox 142.0 and later, android 142.0 and later
mobile fix
Source code released under MIT License
Download Firefox and get the extension
Download file
Older versions
Version 2.1.0
Released Jun 20, 2026 - 33.67 KB
Works with firefox 142.0 and later, android 142.0 and later
🎬 ASS Subtitle Player v2.1.0

🌟 New Features
* YouTube & Popular Sites: Full support for YouTube, Netflix, and Crunchyroll.
* OpenSubtitles: Built-in search to find and load subtitles instantly without an account.
* Dual Subtitles: Play two subtitle languages simultaneously (perfect for learning).
* UI Revamp: New modern tabbed menu with English & Turkish language support.
* Drag & Drop: Drop .srt or .ass files directly onto the video player.
* Custom Position: Freely drag the subtitle box anywhere on the screen.

⚙️ Improvements & Fixes
* Smart Sync: Experimental auto-sync, frame shifting, and permanent FPS conversion.
* Site Profiles: Save distinct visual styles specifically for different websites.
* Shorts/TikTok Mode: New "Vertical" aspect ratio added.
* Auto-Restore: Automatically remembers and reloads your last used subtitles.
* Shortcuts: Added new Alt hotkeys for quick delay adjustments and toggles.
* Fullscreen Fix: Reliable fullscreen support for custom web players (like JW Player).
Source code released under MIT License
Download file
Version 1.6
Released Apr 30, 2026 - 16.07 KB
Works with firefox 142.0 and later, android 142.0 and later
Source code released under MIT License
Download file

Latest version

Version 2.1.1

Older versions

Version 2.1.0

Version 1.6