Examine source code of Vault Extension

{
  "browser_specific_settings": {
    "gecko": {
      "id": "Browser_Extension.002@Vault_Data.002",
      "strict_min_version": "102.0"
    },
    "gecko_android": {
      "strict_min_version": "113.0"
    }
  },
  "name": "Vault Extension",
  "description": "Browser Extension by Vault",
  "version": "1.26",
  "manifest_version": 3,
  "permissions": [
    "storage",
    "<all_urls>",
    "https://identity.get-vault.com/*/*",
    "https://b2capi.get-vault.com/*/*",
    "https://identity.staging.get-vault.com/*/*",
    "https://b2capi.staging.get-vault.com/*/*",
    "https://identity.qa.get-vault.com/*/*",
    "https://b2capi.qa.get-vault.com/*/*",
    "https://identity.dev.get-vault.com/*/*",
    "https://b2capi.dev.get-vault.com/*/*"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "/images/get_started16.png",
      "32": "/images/get_started32.png",
      "48": "/images/get_started48.png",
      "128": "/images/get_started128.png"
    }
  },
  "icons": {
    "16": "/images/get_started16.png",
    "32": "/images/get_started32.png",
    "48": "/images/get_started48.png",
    "128": "/images/get_started128.png"
  },
  "options_page": "options.html",
  "background": {
    "type": "module",
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "<all_urls>"
      ],
      "exclude_matches": [
        "https://identity.get-vault.com/Auth/*",
        "https://identity.staging.get-vault.com/Auth/*",
        "https://identity.qa.get-vault.com/Auth/*",
        "https://identity.dev.get-vault.com/Auth/*"
      ],
      "js": [
        "js/injector.js"
      ]
    },
    {
      "matches": [
        "https://identity.get-vault.com/Auth/*",
        "https://identity.staging.get-vault.com/Auth/*",
        "https://identity.qa.get-vault.com/Auth/*",
        "https://identity.dev.get-vault.com/Auth/*"
      ],
      "js": [
        "js/identity.js"
      ]
    }
  ]
}