YT Transcript & Summary

Name: YT Transcript & Summary
Author: felixleopold

Copy YouTube video transcripts as plain text or Markdown, and generate AI-powered summaries. Supports light and dark mode.

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Install

Features & Capabilities

YT Transcript & Summary adds Copy Transcript, Summarize, and Settings buttons to every YouTube video page.

Transcript features:

One-click copy to clipboard
Plain text or Markdown output
Optional timestamps, video title, and URL
Paragraph mode for continuous reading

AI Summary features:

Supports OpenAI, Anthropic, Google Gemini, Groq, and OpenRouter
Pick any model from your provider's API
Customizable system prompt
Display summary inline on YouTube or copy to clipboard
Full Markdown rendering (tables, code blocks, lists, blockquotes)

Other:

Automatically adapts to YouTube's light and dark theme
Settings persist across sessions
Works with YouTube's SPA navigation

Built on YouTube Transcript Copier by dislikelever, released under the MIT License.

User Growth & Download Statistics

Add-on

By:

felixleopold

Daily users:

1 -1

Version:

1.0.1 Last updated: 2026-04-19

Version code:

6223597

Creation date:

2026-04-15

Risk:

Permissions:

Host permissions:

*://*.youtube.com/*
*://api.openai.com/*
*://api.anthropic.com/*
*://generativelanguage.googleapis.com/*
*://api.groq.com/*
*://openrouter.ai/*

Content scripts matches:

*.youtube.com

Size:

32.68KB

Email:

ga*****@icloud.com

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-13

Compare stats and ranking:

Ranking

# 100,554 ▼ 38,542

Other rankings

#62 in summary keyword 54 ▼ 11#95 in ai summary keyword 44 ▼ 16

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:

felixleopold

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/yt-transcript-summary/

Email:

ga*****@icloud.com

Is YT Transcript & Summary 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.

YT Transcript & Summary requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Request access to the following domains: youtube.com, openai.com, anthropic.com, googleapis.com, groq.com, openrouter.ai
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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.

YT Transcript & Summary 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 has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
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