{
  "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": false
            },
            "opera": {
              "version_added": true
            },
            "safari": {
              "version_added": "14"
            }
          }
        },
        "content_scripts": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/content_security_policy#content_scripts",
            "support": {
              "chrome": {
                "version_added": false,
                "notes": "See <code>isolated_world</code>."
              },
              "edge": {
                "version_added": false,
                "notes": "See <code>isolated_world</code>."
              },
              "firefox": {
                "version_added": "72",
                "flags": [
                  {
                    "type": "preference",
                    "name": "extensions.content_script_csp.enabled",
                    "value_to_set": "true"
                  },
                  {
                    "type": "preference",
                    "name": "extensions.content_script_csp.report_only",
                    "value_to_set": "false"
                  }
                ]
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": false,
                "notes": "See <code>isolated_world</code>."
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "extension_pages": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/content_security_policy#extension_pages",
            "support": {
              "chrome": {
                "version_added": false,
                "notes": "Available in Canary builds."
              },
              "edge": {
                "version_added": false,
                "notes": "Available in Canary builds."
              },
              "firefox": {
                "version_added": "72",
                "flags": [
                  {
                    "type": "preference",
                    "name": "extensions.content_script_csp.enabled",
                    "value_to_set": "true"
                  },
                  {
                    "type": "preference",
                    "name": "extensions.content_script_csp.report_only",
                    "value_to_set": "false"
                  }
                ]
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "isolated_world": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/content_security_policy#isolated_world",
            "support": {
              "chrome": {
                "version_added": false,
                "notes": "Not yet implemented."
              },
              "edge": {
                "version_added": false,
                "notes": "Not yet implemented."
              },
              "firefox": {
                "version_added": false,
                "notes": "See <code>content_scripts</code>."
              },
              "firefox_android": {
                "version_added": false,
                "notes": "See <code>content_scripts</code>."
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "sandbox": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/content_security_policy#sandbox",
            "support": {
              "chrome": {
                "version_added": false,
                "notes": "Available in Canary builds."
              },
              "edge": {
                "version_added": false,
                "notes": "Available in Canary builds."
              },
              "firefox": {
                "version_added": false,
                "notes": "Firefox does not support sandboxed scripts, so this key is not applicable."
              },
              "firefox_android": {
                "version_added": false,
                "notes": "Firefox does not support sandboxed scripts, so this key is not applicable."
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        }
      }
    }
  }
}