Tumblr Video Downloader → SaveTumblr

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Tumblr Video Downloader \u2192 SaveTumblr",
    "version": "1.2.0",
    "description": "Adds a Download button on Tumblr posts, builds the correct share URL and sends it to savetumblr.com.",
    "icons": {
        "128": "icon128.png"
    },
    "permissions": [
        "scripting",
        "tabs"
    ],
    "host_permissions": [
        "https:\/\/www.tumblr.com\/*",
        "https:\/\/*.tumblr.com\/*",
        "https:\/\/savetumblr.com\/*"
    ],
    "background": {
        "service_worker": "background.js"
    },
    "content_scripts": [
        {
            "matches": [
                "https:\/\/www.tumblr.com\/*",
                "https:\/\/*.tumblr.com\/*"
            ],
            "js": [
                "content.js"
            ],
            "css": [
                "style.css"
            ],
            "run_at": "document_idle"
        }
    ]
}