{
  "webextensions": {
    "api": {
      "userScripts": {
        "RegisteredUserScript": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/userScripts/RegisteredUserScript",
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "68"
                },
                {
                  "version_added": "66",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "extensions.webextensions.userScripts.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": {
                "version_added": "68"
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          },
          "unregister": {
            "__compat": {
              "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/userScripts/RegisteredUserScript/unregister",
              "support": {
                "chrome": {
                  "version_added": false
                },
                "edge": {
                  "version_added": false
                },
                "firefox": [
                  {
                    "version_added": "68"
                  },
                  {
                    "version_added": "66",
                    "flags": [
                      {
                        "type": "preference",
                        "name": "extensions.webextensions.userScripts.enabled",
                        "value_to_set": "true"
                      }
                    ]
                  }
                ],
                "firefox_android": {
                  "version_added": "68"
                },
                "opera": {
                  "version_added": false
                },
                "safari": {
                  "version_added": false
                }
              }
            }
          }
        },
        "onBeforeScript": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/userScripts/onBeforeScript",
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "68"
                },
                {
                  "version_added": "66",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "extensions.webextensions.userScripts.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": {
                "version_added": "68"
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "register": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/userScripts/register",
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": [
                {
                  "version_added": "68"
                },
                {
                  "version_added": "66",
                  "flags": [
                    {
                      "type": "preference",
                      "name": "extensions.webextensions.userScripts.enabled",
                      "value_to_set": "true"
                    }
                  ]
                }
              ],
              "firefox_android": {
                "version_added": "68"
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        }
      }
    }
  }
}