Baliset

A Firefox extension that renders heatmaps from guitar tabs on Ultimate Guitar.

Requirements

• Node.js (with npm)
• Firefox 109 or newer

Running locally

1. Install dependencies and build

   npm install
   npm run build

   This compiles the TypeScript in src/ into content.js.

2. Load the extension in Firefox

   • Navigate to about:debugging#/runtime/this-firefox
   • Click Load Temporary Add-on…
   • Select manifest.json from this directory

3. Try it out

   Open any tab page on ultimate-guitar.com. The heatmap overlay renders automatically.

Temporary add-ons are removed when Firefox restarts, so repeat step 2 each session.