BigConverter - YouTube to MP3 & MP4

Name: BigConverter - YouTube to MP3 & MP4
Author: BigConverter

Convert YouTube videos, shorts and playlists to MP3 or MP4 in one click. Works on YouTube, YouTube Music and youtu.be links.

Overview

Firefox Add-ons Store

Daily users

43 ▲ 6

Data as of 2026-07-21

Version:

1.0.0

Last updated: 2026-05-26

Features & Capabilities

BigConverter.com - turns any YouTube page into a one-click MP3 or MP4 download.

Features

Convert in one click - a green "MP3 / MP4" button is added next to the Like / Share / Save buttons on every YouTube video, short, and playlist page.
Toolbar popup - click the BigConverter icon for instant Convert to MP3 / Convert to MP4 buttons with a thumbnail preview of the current video.
Right-click anywhere - convert any YouTube link from any page via the context menu.
Playlists supported - open any YouTube playlist and convert the whole list at once.
Works everywhere YouTube does - youtube.com, music.youtube.com, m.youtube.com, youtu.be, embeds and shorts.

Why use it

No sign-up, no account, no tracking - the extension does not collect, store or transmit any personal data.
No software to install - conversion happens on the BigConverter website, nothing runs on your machine besides the browser.
Free and unlimited - MP3 up to 320 kbps, MP4 up to 1080p.
Tiny - under 30 KB.

How it works

When you click Convert, the extension opens a new tab on BigConverter with your video URL already filled in. The conversion happens on the BigConverter site, which fetches the audio or video from YouTube's servers and delivers a download link.

The extension itself only reads the URL of the YouTube tab you're on, and only when you click. It does not read the page content, your history, cookies, or any other data.

Privacy

The extension declares "no data collection" in its manifest. No analytics. No telemetry. No third-party scripts. The complete source is reviewed by Mozilla before publishing.

Support

Website: https://en.bigconverter.com
FAQ: https://en.bigconverter.com/faq
Contact: https://en.bigconverter.com/contact

User Growth & Download Statistics

Add-on

By:

BigConverter

Daily users:

43 6

Version:

1.0.0 Last updated: 2026-05-26

Version code:

6274464

Creation date:

2026-05-23

Risk:

Permissions:

Host permissions:

*://*.youtube.com/*
*://youtu.be/*
https://en.bigconverter.com/*

Content scripts matches:

*.youtube.com
youtu.be

Size:

32.03KB

Email:

co*****@bigconverter.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-21

Compare stats and ranking:

Ranking

# 16,613 ▲ 1,187

Other rankings

#34 in bigo keyword 3 ▲ 1#56 in mp3 keyword 24 #151 in convert keyword 29 ▲ 8#165 in playlist keyword 20 ▲ 3

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:

BigConverter

Firefox Add-ons Store

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

Email:

co*****@bigconverter.com

Website:

https://en.bigconverter.com

Is BigConverter - YouTube to MP3 & MP4 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.

BigConverter - YouTube to MP3 & MP4 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.

BigConverter - YouTube to MP3 & MP4 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.
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