.eslintrc.json

{
    "extends": "eslint:recommended",
    "globals": {
        "fetch": false,
        "URL": false,
        "global": false,
        "URLSearchParams": false
    },
    "parserOptions": {
        "sourceType": "module",
        "ecmaVersion": 13
    },
    "env": {
        "es6": true,
        "es2022": true,
        "jest": true,
        "webextensions": true
    },
    "rules": {
        "keyword-spacing": 2
    }
}