asbplayer (Official) Firefox

asbplayer (Official)

Enhance streaming video for language-learning.

Features & Capabilities

asbplayer is a free, open-source language-learning assistant designed for serious learners who study through subtitled media. It works with nearly every streaming service, offering text-selectable subtitles, the option to use your own subtitle files, and auto-detected subtitles on Netflix and YouTube. The extension also provides a streamlined UI to create Anki flashcards with subtitles, screenshots, and audio, plus controls for navigating subtitles and adjusting playback speed.

Beyond basic playback, asbplayer includes features to optimize learning: skip unsubtitled sections, annotate subtitles with learning aids, and maintain a vocabulary database to highlight known and unknown words. It integrates with open-source tools for a richer study workflow. Note: the Firefox version does not support recording DRM-protected audio.

User Growth & Download Statistics

By:
asbplayer
Daily users:
2,163 21
Rating:
4.75
(8)
0.25
Version:
1.20.1 Last updated: 2026-08-21
Version code:
6428912
Creation date:
2024-05-05
Firefox add-on GUID:
{e4b27483-2e73-4762-b2ec-8d988a143a40}
Firefox add-on numeric ID:
2844307
Weekly download count:
136
Firefox on Android:
No
Risk:
High risk impact Moderate risk likelihood
Permissions:
Content scripts matches:
  • app.asbplayer.dev
  • <all_urls>
Size:
4.08MB
Email:
as*****@gmail.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-07
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
asbplayer
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/asbplayer-language-learning/
Email:
as*****@gmail.com
Website:
https://github.com/killergerbah/asbplayer/issues

Permission Change History

2026-08-22: Version 1.20.0 → 1.20.1
Remove Permissions: webRequest webRequestBlocking

User Reviews

worked really well but the 8/20 update broke a lot of sites and players
by wo*****, 2026-08-21

The player is really nice and works well, but for some reason when the extention is turned on, some websites just display a grey screen and don't load anything
by ya*****, 2026-08-21
View all user reviews ›

Is asbplayer (Official) Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

asbplayer (Official) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****
  • Low ******* ****** ** *** ********* ******** *************
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

asbplayer (Official) is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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