{
  "webextensions": {
    "manifest": {
      "page_action": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/page_action",
          "support": {
            "chrome": [
              {
                "version_added": true,
                "notes": "If an extension defines a page action, it is not allowed to define a browser action as well."
              },
              {
                "version_added": "49",
                "notes": "Since Chrome 49, page actions are displayed on the toolbar, rather than in the address bar."
              }
            ],
            "edge": {
              "version_added": "14"
            },
            "firefox": {
              "version_added": "48"
            },
            "firefox_android": {
              "version_added": true
            },
            "opera": {
              "version_added": true,
              "notes": "If an extension defines a page action, it is not allowed to define a browser action as well."
            },
            "safari": {
              "version_added": "14",
              "notes": "If an extension defines a page action, it is not allowed to define a browser action as well."
            }
          }
        },
        "browser_style": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "48"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "default_icon": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": true,
                "notes": "SVG icons are not supported."
              },
              "edge": {
                "version_added": "14",
                "partial_implementation": true,
                "notes": [
                  "SVG icons are not supported.",
                  "'default_icon' must be an object, with explicit sizes."
                ]
              },
              "firefox": {
                "version_added": "48"
              },
              "firefox_android": {
                "version_added": true
              },
              "opera": {
                "version_added": true,
                "notes": "SVG icons are not supported."
              },
              "safari": {
                "version_added": "14",
                "notes": "SVG icons are not supported. Grayscale images will be treated as template icons and processed with the system accent color and system appearance."
              }
            }
          }
        },
        "default_popup": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": true
              },
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "48"
              },
              "firefox_android": {
                "version_added": true
              },
              "opera": {
                "version_added": true
              },
              "safari": {
                "version_added": "14"
              }
            }
          }
        },
        "default_title": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": true
              },
              "edge": {
                "version_added": "14"
              },
              "firefox": {
                "version_added": "48"
              },
              "firefox_android": {
                "version_added": true
              },
              "opera": {
                "version_added": true
              },
              "safari": {
                "version_added": "14"
              }
            }
          }
        },
        "hide_matches": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "59"
              },
              "firefox_android": {
                "version_added": "59"
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "pinned": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "64"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "show_matches": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "59"
              },
              "firefox_android": {
                "version_added": "59"
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        }
      }
    }
  }
}