Auto-Subtitle

Name: Auto-Subtitle
Rating: 1.6333 (30 reviews)
Author: auto-subtitle

By: auto-subtitle

Using speech recognition and machine translation to generate subtitles for videos.

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Features & Capabilities

Auto-Subtitle is a powerful Chrome extension that leverages AI-driven speech recognition and machine translation to automatically generate subtitles for videos across various web platforms. It supports live broadcasts, on-demand content, video chats, and video conferences, enhancing accessibility and understanding.

With its multi-language subtitle translation, Auto-Subtitle broadens content reach to diverse audiences globally. Note that due to processing, there may be a subtitle delay of over ten seconds. This extension is perfect for users seeking real-time subtitle assistance and language translation in online video interactions.

User Growth & Download Statistics

Add-on Accessibility AI Communication

By:

Daily users:

Rating:

Version:

0.2 Last updated: 2020-10-26

Version code:

5122521

Creation date:

2020-04-06

Risk:

Permissions:

Content scripts matches:

Size:

846.52KB

Email:

au*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-17

Compare stats and ranking:

Ranking

# 3,181 ▲ 17

Other rankings

#127 in Language Support ▲ 1

#23 in auto keyword 71

#39 in autogram keyword 6 ▲ 1

#58 in autocomplete keyword 10 ▲ 1

#82 in speech keyword 60 ▼ 5

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For Developers

Monetize with App Pass Boost with Extension Booster

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:

auto-subtitle

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/auto-subtitle/

Email:

au*****@gmail.com

Website:

https://www.auto-subtitle.com

User Reviews

Users appreciate that Auto-Subtitle can generate SRTs and help with accessibility and translation, and that it works on some sites. However, many reviewers report major drawbacks: it requires Google/Amazon cloud accounts and API keys (not clearly advertised), can be costly to use, has reliability problems (hangs/doesn’t work), and lacks clear guidance on securing API keys.

Pros

Generates automatic subtitles and exports SRT files (users can open/copy the generated text).
Useful idea for accessibility and breaking language barriers (translation capability praised by multiple users).
Works for some sites/videos for several users (toolbar icon and subtitle overlay appear on supported videos).

Cons

Requires a Google Cloud or Amazon Web Services account and an API key — several users said this requirement was not clearly stated.
Can incur significant pay‑per‑use costs (translation/subtitle APIs), making it unsuitable for many personal users; several reviews called it effectively paid.
Reliability issues: multiple reports that it doesn’t work, hangs while generating subtitles, or fails on some videos.
Security and documentation concerns: instructions don’t clearly explain API key restriction or safe handling, so users worry about sharing keys.

Recent reviews

by Re*****, 2026-05-05

by Da*****, 2026-04-25

by Fi*****, 2025-08-07

View all user reviews ›

Is Auto-Subtitle 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.

Auto-Subtitle 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.
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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.

Auto-Subtitle is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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