Mindfulness: Drag you back into here and now

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_appName__",
    "description": "__MSG_appDesc__",
    "version": "1.0.7",
    "manifest_version": 2,
    "default_locale": "en",
    "icons": {
        "16": "icons\/icon_16.png",
        "32": "icons\/icon_32.png",
        "48": "icons\/icon_48.png",
        "64": "icons\/icon_64.png",
        "128": "icons\/icon_128.png"
    },
    "permissions": [
        "storage",
        "https:\/\/*.twitter.com\/",
        "https:\/\/*.facebook.com\/",
        "https:\/\/*.youtube.com\/",
        "https:\/\/*.reddit.com\/"
    ],
    "browser_action": {
        "default_title": "Mindful",
        "default_popup": "popup\/popup.html"
    },
    "content_scripts": [
        {
            "matches": [
                "https:\/\/*.twitter.com\/*",
                "https:\/\/*.facebook.com\/*",
                "https:\/\/*.youtube.com\/*",
                "https:\/\/*.reddit.com\/*"
            ],
            "css": [
                "block.css"
            ],
            "js": [
                "block.js"
            ],
            "run_at": "document_idle"
        }
    ],
    "web_accessible_resources": [
        "\/icons\/icon_128.png"
    ],
    "background": {
        "scripts": [
            "background.js"
        ]
    },
    "content_security_policy": "script-src 'self' https:\/\/www.google-analytics.com; object-src 'self'"
}