{
  "webextensions": {
    "manifest": {
      "sidebar_action": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/manifest.json/sidebar_action",
          "support": {
            "chrome": {
              "version_added": false
            },
            "edge": {
              "version_added": false
            },
            "firefox": {
              "version_added": "54"
            },
            "firefox_android": {
              "version_added": false
            },
            "opera": {
              "version_added": "30"
            },
            "safari": {
              "version_added": false
            }
          }
        },
        "browser_style": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "55"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "default_icon": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "54"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": "30",
                "notes": "SVG icons are not supported."
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "default_panel": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "54"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": "30"
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "default_title": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "54"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": "30"
              },
              "safari": {
                "version_added": false
              }
            }
          }
        },
        "open_at_install": {
          "__compat": {
            "support": {
              "chrome": {
                "version_added": false
              },
              "edge": {
                "version_added": false
              },
              "firefox": {
                "version_added": "62"
              },
              "firefox_android": {
                "version_added": false
              },
              "opera": {
                "version_added": false
              },
              "safari": {
                "version_added": false
              }
            }
          }
        }
      }
    }
  }
}