mdn-browser-compat-data/webextensions/manifest/content_security_policy.json

Browser compatibility data provided by MDN Web Docs

{
  "webextensions": {
    "manifest": {
      "content_security_policy": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/content_security_policy",
          "support": {
            "chrome": {
              "version_added": true
            },
            "edge": {
              "version_added": "14",
              "notes": "Only the default content security policy is supported: \"script-src 'self'; object-src 'self';\"."
            },
            "firefox": {
              "version_added": "48",
              "notes": "Firefox does not support 'http://127.0.0.1' or 'http://localhost' as script sources: they must be served over HTTPS."
            },
            "firefox_android": {
              "version_added": "48",
              "notes": "Firefox does not support 'http://127.0.0.1' or 'http://localhost' as script sources: they must be served over HTTPS."
            },
            "opera": {
              "version_added": true
            }
          }
        }
      }
    }
  }
}