Gblock — Block email tracking in Gmail

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "__MSG_ext_name__",
    "description": "__MSG_ext_description__",
    "default_locale": "en",
    "author": "Jacopo Beschi <[email protected]>",
    "homepage_url": "https:\/\/www.gblock.app",
    "version": "0.4.0",
    "action": {
        "default_popup": "popup.html"
    },
    "icons": {
        "16": "images\/extension_icon16.png",
        "48": "images\/extension_icon48.png",
        "64": "images\/extension_icon64.png",
        "128": "images\/extension_icon128.png"
    },
    "permissions": [
        "declarativeNetRequest",
        "webRequest",
        "storage",
        "alarms",
        "scripting"
    ],
    "host_permissions": [
        "*:\/\/*.googleusercontent.com\/*",
        "*:\/\/mail.google.com\/*"
    ],
    "externally_connectable": {
        "matches": [
            "*:\/\/mail.google.com\/*",
            "*:\/\/*.gblock.app\/*",
            "*:\/\/localhost\/*"
        ]
    },
    "content_scripts": [
        {
            "js": [
                "javascript\/load.js"
            ],
            "css": [
                "stylesheets\/summary.css",
                "stylesheets\/status_button.css"
            ],
            "matches": [
                "https:\/\/mail.google.com\/*"
            ],
            "all_frames": true
        }
    ],
    "web_accessible_resources": [
        {
            "resources": [
                "popup.html",
                "javascript\/*",
                "images\/*"
            ],
            "matches": [
                "https:\/\/mail.google.com\/*"
            ]
        }
    ],
    "background": {
        "service_worker": "javascript\/background.js",
        "type": "module"
    }
}