yomichan/ext/manifest.json

{
    "manifest_version": 2,
    "name":             "Yomichan",
    "description":      "Yomichan Extension",
    "version":          "0.0.1",

    "browser_action": {
        "default_icon": "icon.png"
    },

    "background": { "page": "background.html" },

    "content_scripts": [{
        "matches": [ "http://*/*", "https://*/*" ],
        "js":      [ "content.js" ],
        "run_at":  "document_end"
    }]
}