KANTAN Chord Firefox

KANTAN Chord

By: doco
This browser extension will converts various chord sites' song chords to its "degrees", also known as Nashville Numbers.

Features & Capabilities

KANTAN Chord is a powerful browser extension designed for guitarists and musicians that converts song chords on popular chord websites into "degrees" or Nashville Numbers. Compatible with major chord sites like Ultimate Guitar Tabs, U-Fret, Guitarians.com, and others, it automatically analyzes the song's key and displays chords in three formats: original chords (C,F,G), Roman numerals (I,IV,V), and numeric degrees (1,4,5).

With features like key transposition, beginner mode for chord simplification, and options to customize chord display styles, KANTAN Chord helps users easily understand and play songs in various keys. It also supports real-time key change detection, including difficulty rankings for different keys, making it an ideal tool for musicians of all skill levels wanting to learn and play chords effortlessly.

User Growth & Download Statistics

Manifest V3 Add-on Music & Audio Education
By:
doco
Daily users:
327 10
Rating:
3.50
(2)
Version:
2025.3.6.0 Last updated: 2025-03-05
Version code:
5904270
Creation date:
2021-09-15
Risk:
Moderate risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • www.ufret.jp
  • gakufu.gakki.me
  • www.gakufu.gakki.me
  • music.j-total.net
  • tabs.ultimate-guitar.com
  • *.guitarians.com
  • guitarians.com
  • www.91pu.com.tw
Size:
112.45KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-15
Compare stats and ranking:

Other platforms

Chrome
KANTAN Chord (v2025.3.6.0)
4,000 4.70 (10)

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:
doco
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/instachordizer/
Website:
https://en.instachord.com/

Is KANTAN Chord 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.

KANTAN Chord requires a few sensitive permissions. 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.
  • 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.

KANTAN Chord has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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