{
  "webextensions": {
    "api": {
      "topSites": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/topSites",
          "support": {
            "chrome": {
              "version_added": "19"
            },
            "edge": "mirror",
            "firefox": {
              "version_added": "52"
            },
            "firefox_android": {
              "version_added": "52",
              "version_removed": "79"
            },
            "opera": "mirror",
            "safari": {
              "version_added": false
            },
            "safari_ios": "mirror"
          }
        },
        "MostVisitedURL": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/topSites/MostVisitedURL",
            "support": {
              "chrome": {
                "version_added": "19"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "52"
              },
              "firefox_android": {
                "version_added": "52",
                "version_removed": "79"
              },
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "favicon": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": false
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "63"
                },
                "firefox_android": {
                  "version_added": "63",
                  "version_removed": "79"
                },
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            }
          }
        },
        "get": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/topSites/get",
            "support": {
              "chrome": {
                "version_added": "19"
              },
              "edge": "mirror",
              "firefox": {
                "version_added": "52",
                "notes": "Since Firefox 78, a user may disable the browser's \"Top Sites\" feature by toggling the \"browser.newtabpage.activity-stream.feeds.system.topsites\" preference. In this case, `topSites.get()` will always return a list of the most-visited sites, regardless of the value of the `newtab` parameter."
              },
              "firefox_android": {
                "version_added": "52",
                "version_removed": "79"
              },
              "opera": "mirror",
              "safari": {
                "version_added": false
              },
              "safari_ios": "mirror"
            }
          },
          "options": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": false
                },
                "edge": "mirror",
                "firefox": {
                  "version_added": "63"
                },
                "firefox_android": {
                  "version_added": "63",
                  "version_removed": "79"
                },
                "opera": "mirror",
                "safari": {
                  "version_added": false
                },
                "safari_ios": "mirror"
              }
            },
            "includeBlocked": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "63"
                  },
                  "firefox_android": {
                    "version_added": "63",
                    "version_removed": "79"
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            },
            "includeFavicon": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "63"
                  },
                  "firefox_android": {
                    "version_added": "63",
                    "version_removed": "79"
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            },
            "includePinned": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "69"
                  },
                  "firefox_android": {
                    "version_added": false
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            },
            "includeSearchShortcuts": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "69"
                  },
                  "firefox_android": {
                    "version_added": false
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            },
            "limit": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "63"
                  },
                  "firefox_android": {
                    "version_added": "63",
                    "version_removed": "79"
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            },
            "newtab": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "63"
                  },
                  "firefox_android": {
                    "version_added": "63",
                    "version_removed": "79"
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            },
            "onePerDomain": {
              "__compat": {
                "support": {
                  "chrome": {
                    "version_added": false
                  },
                  "edge": "mirror",
                  "firefox": {
                    "version_added": "63"
                  },
                  "firefox_android": {
                    "version_added": "63",
                    "version_removed": "79"
                  },
                  "opera": "mirror",
                  "safari": {
                    "version_added": false
                  },
                  "safari_ios": "mirror"
                }
              }
            }
          }
        }
      }
    }
  }
}