{
  "webextensions": {
    "api": {
      "webNavigation": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation",
          "support": {
            "chrome": {
              "version_added": "16"
            },
            "edge": "mirror",
            "firefox": {
              "version_added": "45"
            },
            "firefox_android": {
              "version_added": "48"
            },
            "opera": "mirror",
            "safari": {
              "version_added": "14"
            },
            "safari_ios": {
              "version_added": "15"
            }
          }
        },
        "TransitionQualifier": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/TransitionQualifier",
            "support": {
              "chrome": {
                "version_added": "44"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "48",
                "notes": "'server_redirect' is limited to top-level frames and 'client_redirect' is not supplied when redirections are created by JavaScript."
              },
              "firefox_android": "mirror",
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "from_address_bar": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "TransitionType": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/TransitionType",
            "support": {
              "chrome": {
                "version_added": "44"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "48"
              },
              "firefox_android": "mirror",
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "auto_bookmark": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "auto_subframe": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48",
                  "notes": "Partially supported as the default transition type for subframes."
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "form_submit": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "generated": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "keyword": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "keyword_generated": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": false
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "link": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48",
                  "notes": "Partially supported as the default transition type for top-level frames."
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "manual_subframe": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": false
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "reload": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "start_page": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": false
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "typed": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "44"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "49"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "getAllFrames": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/getAllFrames",
            "support": {
              "chrome": {
                "version_added": "16"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "47",
                "notes": "The returned objects do not include the `errorOccurred` property. See [bug 1248418](https://bugzil.la/1248418)."
              },
              "firefox_android": {
                "version_added": "48",
                "notes": "The returned objects do not include the `errorOccurred` property. See [bug 1248418](https://bugzil.la/1248418)."
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "15"
              }
            }
          }
        },
        "getFrame": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/getFrame",
            "support": {
              "chrome": {
                "version_added": "16"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "47"
              },
              "firefox_android": {
                "version_added": "48"
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "15"
              }
            }
          }
        },
        "onBeforeNavigate": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onBeforeNavigate",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "firefox_android": {
                "version_added": "48",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "safari_ios": {
                "version_added": "15",
                "notes": "If the filter parameter is empty, all URLs are matched."
              }
            }
          }
        },
        "onCommitted": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onCommitted",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "firefox_android": {
                "version_added": "48",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "safari_ios": {
                "version_added": "15",
                "notes": "If the filter parameter is empty, all URLs are matched."
              }
            }
          },
          "transitionQualifiers": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "16"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "transitionType": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "16"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "onCompleted": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onCompleted",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "firefox_android": {
                "version_added": "48",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "safari_ios": {
                "version_added": "15",
                "notes": "If the filter parameter is empty, all URLs are matched."
              }
            }
          }
        },
        "onCreatedNavigationTarget": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onCreatedNavigationTarget",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If a blocked popup is unblocked by the user, the event is still not sent."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "54",
                "notes": [
                  "If the filter parameter is empty, Firefox raises an exception.",
                  "If a blocked popup is unblocked by the user, the event is then sent."
                ]
              },
              "firefox_android": {
                "version_added": "54",
                "notes": [
                  "If the filter parameter is empty, Firefox raises an exception.",
                  "If a blocked popup is unblocked by the user, the event is then sent.",
                  "This event is only sent in the 'window.open()' case."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "sourceProcessId": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "22"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": false
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "windowId": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": false
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "54"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "onDOMContentLoaded": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onDOMContentLoaded",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "firefox_android": {
                "version_added": "48",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "safari_ios": {
                "version_added": "15",
                "notes": "If the filter parameter is empty, all URLs are matched."
              }
            }
          }
        },
        "onErrorOccurred": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onErrorOccurred",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "firefox_android": {
                "version_added": "48",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": "14",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "safari_ios": {
                "version_added": "15",
                "notes": "If the filter parameter is empty, all URLs are matched."
              }
            }
          },
          "error": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "16"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": false
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": "14"
                },
                "safari_ios": {
                  "version_added": "15"
                }
              }
            }
          }
        },
        "onHistoryStateUpdated": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onHistoryStateUpdated",
            "support": {
              "chrome": {
                "version_added": "22"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "47"
              },
              "firefox_android": {
                "version_added": "48"
              },
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "transitionQualifiers": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "22"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "transitionType": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "22"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "onReferenceFragmentUpdated": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onReferenceFragmentUpdated",
            "support": {
              "chrome": {
                "version_added": "16",
                "notes": "If the filter parameter is empty, all URLs are matched."
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "firefox_android": {
                "version_added": "48",
                "notes": [
                  "Filtering is supported from version 50.",
                  "If the filter parameter is empty, Firefox raises an exception."
                ]
              },
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "transitionQualifiers": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "16"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          },
          "transitionType": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "16"
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "48"
                },
                "firefox_android": "mirror",
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "onTabReplaced": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/webNavigation/onTabReplaced",
            "support": {
              "chrome": {
                "version_added": "22"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "45",
                "notes": "Although you can add listeners for this event, it will never fire because the underlying functionality is not supported."
              },
              "firefox_android": {
                "version_added": "48",
                "notes": "Although you can add listeners for this event, it will never fire because the underlying functionality is not supported."
              },
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          }
        }
      }
    }
  }
}