<commit_before>{
  "css": {
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      "backdrop": {
        "__compat": {
          "description": "<code>::backdrop</code>",
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::backdrop",
          "spec_url": "https://fullscreen.spec.whatwg.org/#::backdrop-pseudo-element",
          "support": {
            "chrome": [
              {
                "version_added": "37"
              },
              {
                "prefix": "-webkit-",
                "version_added": "32"
              }
            ],
            "chrome_android": "mirror",
            "edge": [
              {
                "version_added": "79"
              },
              {
                "prefix": "-ms-",
                "version_added": "12",
                "version_removed": "79"
              }
            ],
            "firefox": {
              "version_added": "47"
            },
            "firefox_android": "mirror",
            "ie": {
              "prefix": "-ms-",
              "version_added": "11"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "15.4"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "dialog": {
          "__compat": {
            "description": "Support on <code>dialog</code> elements",
            "support": {
              "chrome": {
                "version_added": "32"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": false
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "15.4"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "fullscreen": {<commit_msg>Add Firefox versions for css.selectors.backdrop.dialog (#17316)<commit_after>{
  "css": {
    "selectors": {
      "backdrop": {
        "__compat": {
          "description": "<code>::backdrop</code>",
          "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/::backdrop",
          "spec_url": "https://fullscreen.spec.whatwg.org/#::backdrop-pseudo-element",
          "support": {
            "chrome": [
              {
                "version_added": "37"
              },
              {
                "prefix": "-webkit-",
                "version_added": "32"
              }
            ],
            "chrome_android": "mirror",
            "edge": [
              {
                "version_added": "79"
              },
              {
                "prefix": "-ms-",
                "version_added": "12",
                "version_removed": "79"
              }
            ],
            "firefox": {
              "version_added": "47"
            },
            "firefox_android": "mirror",
            "ie": {
              "prefix": "-ms-",
              "version_added": "11"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "15.4"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "dialog": {
          "__compat": {
            "description": "Support on <code>dialog</code> elements",
            "support": {
              "chrome": {
                "version_added": "32"
              },
              "chrome_android": "mirror",
              "edge": "mirror",
              "firefox": {
                "version_added": "98"
              },
              "firefox_android": "mirror",
              "ie": {
                "version_added": false
              },
              "oculus": "mirror",
              "opera": "mirror",
              "opera_android": "mirror",
              "safari": {
                "version_added": "15.4"
              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "fullscreen": {
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