Build scripts are tested on Windows. They were initially tested on Mac. These will probably work on Linux and Windows Subsystem for Linux, but I have not tested them.

• Make sure you have Node.js 18.15.0 or later installed
• Open the folder containing this README
• Run pnpm install
• Run pnpm run build

Continue the process with the steps listed below.

• Open Firefox's debugging page (about:debugging#/runtime/this-firefox)
• Click "Load Temporary Add-on..."
• Navigate to this project's root and select manifest.json

I eased this process with web-ext npm module to create and load firefox profiles.
Just run pnpm run start:firefox which will create a custom firefox profile where you will be able to pin the extension to the bar and web-ext will auto-refresh the install of the extension when developing.

Run pnpm run dev:firefox. It starts firefox with web-ext to auto-refesh the built extension and it automates the build by watching source files.

If you just want the popup, you can develop it as a standard svlte app:

• In vscode, open a Live Server on popup.html
• In a console, run pnpm run watch:build