usi (User|Unified Script Injector)

manifest.json

{
  "manifest_version": 2,
  "name": "USI",
  "description": "__MSG_extShortDesc__",
  "default_locale": "de",
  "author": "usi-dev",
  "developer": {
    "name": "usi-dev"
  },
  "version": "0.5.16",
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*.user.js",
        "*://*/*.user.js?*",
        "file:///*.user.js?*",
        "file:///*.user.js"
      ],
      "js": [
        "js/page_install_userscript.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "38": "gui/icon/usi.png"
    },
    "default_title": "USI"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "gui/options.html"
  },
  "applications": {
    "gecko": {
      "id": "firefox-addon-usi@jetpack",
      "strict_min_version": "59.0"
    }
  },
  "permissions": [
    "<all_urls>",
    "clipboardRead",
    "clipboardWrite",
    "notifications",
    "storage",
    "unlimitedStorage",
    "tabs",
    "webNavigation"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self';"
}