FlashCaption

Name: FlashCaption
Author: MG Media LLC

Real-time AI captions and translation for any livestream or video. Live subtitles on YouTube, Twitch, anime, and sports, translated into your language as people speak. No uploads, no switching tabs. Start with 7 days free.

Overview

Firefox Add-ons Store

Daily users

8 ▲ 6

Data as of 2026-09-08

Version:

1.26.1

Last updated: 2026-08-25

Features & Capabilities

Real-time captions and live translation for any video or livestream, right inside Firefox.

Ever watched a stream, a match, or a video in a language you don't speak and missed half of it? FlashCaption listens to whatever is playing in your tab and puts AI subtitles on screen as people speak, translated into the language you actually read. Whatever the language, you stay in sync.

Start with a 7-day free trial. Full access from minute one, and you can cancel any time before it ends. Turn it on and captions appear live. No setup, no uploads, no switching tabs.

WHERE IT WORKS

• YouTube, including live streams and Shorts • Twitch and other live streaming sites • Anime and drama sites, bilibili, and Korean streams on Naver Chzzk • Foreign sports streams and news channels • Webinars, online courses, and browser-based meetings • Most other video players on the web

REAL-TIME CAPTIONS AND TRANSLATION

• Live captions generated as people speak, not uploaded files or pre-made subtitle tracks • Those subtitles translated instantly into your preferred language, including Korean, Japanese, Chinese, Spanish, Russian, and Portuguese • Follow foreign streamers, anime, K-content, and international sport, and catch every word • Keep up with fast speech and multilingual chat without pausing or rewinding

FAST, PRIVATE, AND BUILT FOR LIVE

• Low-latency captions that keep pace with live audio • Privacy-first: your audio is processed live and never stored • Runs in the browser, no desktop app and no complicated setup • Nothing to upload and no files to convert

FLEXIBLE AND CUSTOMIZABLE

• Overlay subtitles directly on any video • Adjust font size, color, and position • Switch languages at any time • One-click toggle on or off

SIMPLE PLANS, 7 DAYS FREE

• Try any plan free for 7 days, secure checkout by Stripe • Weekly from $1.99, monthly and yearly available • Cancel any time before the trial ends

WHO IT IS FOR

Stream watchers who follow creators in another language, anime and K-drama fans, language learners, sports fans on foreign feeds, students in online lectures, and anyone sitting in a meeting or webinar that is not in their first language.

Home: https://flashcaption.com Questions or feedback: https://flashcaption.com/contact

User Growth & Download Statistics

Add-on

By:

MG Media LLC

Daily users:

8 6

Version:

1.26.1 Last updated: 2026-08-25

Version code:

6430075

Creation date:

2026-08-22

Firefox add-on GUID:

flashcaption-firefox@flashcaption.com

Firefox add-on numeric ID:

3058328

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

57.08KB

Email:

su*****@flashcaption.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-08

Compare stats and ranking:

Ranking

# 36,622 ▲ 25,962

Other rankings

#61 in adobe flash keyword 41 ▲ 22#62 in flash keyword 46 ▲ 47#92 in flashcards keyword 19 ▲ 31#238 in options keyword 17 ▲

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:

MG Media LLC

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/flashcaption/

Email:

su*****@flashcaption.com

Website:

https://flashcaption.com/contact

Is FlashCaption 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.

FlashCaption requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

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

FlashCaption is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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