Examine source code of Tab Mix - Links

{
  "manifest_version": 2,
  "name": "Tab Mix - Links",
  "version": "0.1.1resigned1",
  "applications": {
    "gecko": {
      "id": "webext@tabmixplus.org",
      "strict_min_version": "57.0"
    }
  },
  "description": "Tab browsing with an added boost.",
  "icons": {
    "16": "icons/tabmix-16.png",
    "32": "icons/tabmix-32.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "background_scripts/index.js",
      "common/logger.js",
      "common/storage.js",
      "background_scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "common/logger.js",
        "content_scripts/contentClick.js"
      ],
      "all_frames": true
    }
  ],
  "options_ui": {
    "page": "preferences/preferences.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "default_locale": "en"
}