manifest.json

{
    "name": "__MSG_extensionName__",
    "description": "__MSG_extensionDescription__",
    "version": "2.3",
    "manifest_version": 2,
    "homepage_url": "https://github.com/arunelias/session-alive",
    "background":{
        "scripts": ["background.js"]
    },
    "permissions": [
        "tabs", 
        "notifications", 
        "storage", 
        "contextualIdentities", 
        "cookies"
    ],
    "browser_action":{
        "default_popup": "popup/popup.html",
        "default_title": "Session Alive",
        "default_icon": "assets/icon/icon.svg"
    },
    "icons": {
        "16": "assets/icon/icon.svg",
        "32": "assets/icon/icon.svg",
        "48": "assets/icon/icon.svg",
        "64": "assets/icon/icon.svg",
        "128": "assets/icon/icon.svg"
    },
    "applications": {
        "gecko": {
            "id": "{15060491-2b35-49f4-9f01-f35b127bebcc}",
            "strict_min_version": "57.0"
      }
    },
    "content_scripts":[
        {
            "matches": ["<all_urls>"],
            "css": ["inject/cs.css"],
            "js": ["inject/cs.js"]
        }
    ],
    "options_ui": {
        "browser_style": false,
        "open_in_tab": true,
        "page": "settings/settings.html?"
    },
    "web_accessible_resources": [
        "beep.wav"
    ],
    "default_locale": "en"
}