diff --git a/webextensions/manifest/background.json b/webextensions/manifest/background.json
index 64baaf5245cc47..df3854d18ffb75 100644
--- a/webextensions/manifest/background.json
+++ b/webextensions/manifest/background.json
@@ -9,8 +9,7 @@
               "version_added": true
             },
             "edge": {
-              "version_added": "14",
-              "notes": "The 'persistent' property is mandatory."
+              "version_added": "14"
             },
             "firefox": {
               "version_added": "48"
@@ -23,7 +22,7 @@
             }
           }
         },
-        "persistent": {
+        "page": {
           "__compat": {
             "support": {
               "chrome": {
@@ -32,6 +31,28 @@
               "edge": {
                 "version_added": "14"
               },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "persistent": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14",
+                "notes": "The 'persistent' property is mandatory."
+              },
               "firefox": {
                 "version_added": "48",
                 "partial_implementation": true,
@@ -53,6 +74,30 @@
               }
             }
           }
+        },
+        "scripts": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox":
+              {
+                "version_added": "48",
+                "notes": "Before Firefox 50, when the debugger is open, scripts are not always loaded in the order given in the array."
+              },
+              "firefox_android": {
+                "version_added": "48",
+                "notes": "Before Firefox 50, when the debugger is open, scripts are not always loaded in the order given in the array."
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
         }
       }
     }
diff --git a/webextensions/manifest/browser_action.json b/webextensions/manifest/browser_action.json
index 062a98d5bb4a2e..0e3af259f1781a 100644
--- a/webextensions/manifest/browser_action.json
+++ b/webextensions/manifest/browser_action.json
@@ -76,6 +76,7 @@
               },
               "edge": {
                 "version_added": "14",
+                "partial_implementation": true,
                 "notes": [
                   "SVG icons are not supported.",
                   "'default_icon' must be an object, with explicit sizes."
diff --git a/webextensions/manifest/content_scripts.json b/webextensions/manifest/content_scripts.json
index de315a9319680b..cc2701c7fa2bc5 100644
--- a/webextensions/manifest/content_scripts.json
+++ b/webextensions/manifest/content_scripts.json
@@ -13,12 +13,10 @@
               "version_added": "14"
             },
             "firefox": {
-              "version_added": "48",
-              "notes": "Content scripts won't be injected into empty iframes at 'document_start' even if you specify that value in 'run_at'."
+              "version_added": "48"
             },
             "firefox_android": {
-              "version_added": "48",
-              "notes": "Content scripts won't be injected into empty iframes at 'document_start' even if you specify that value in 'run_at'."
+              "version_added": "48"
             },
             "opera": {
               "version_added": true,
@@ -26,6 +24,132 @@
             }
           }
         },
+        "all_frames": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "css": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "exclude_globs": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "exclude_matches": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "include_globs": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "js": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
         "match_about_blank": {
           "__compat": {
             "support": {
@@ -36,10 +160,54 @@
                 "version_added": "14"
               },
               "firefox": {
-                "version_added": "52"
+                "version_added": "52",
+              "notes": "Content scripts won't be injected into empty iframes at 'document_start' even if you specify that value in 'run_at'."
+              },
+              "firefox_android": {
+                "version_added": "52",
+              "notes": "Content scripts won't be injected into empty iframes at 'document_start' even if you specify that value in 'run_at'."
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "matches": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "48"
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
+        },
+        "run_at": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": "14"
+              },
+              "firefox": {
+                "version_added": "48"
               },
               "firefox_android": {
-                "version_added": "52"
+                "version_added": "48"
               },
               "opera": {
                 "version_added": true
diff --git a/webextensions/manifest/omnibox.json b/webextensions/manifest/omnibox.json
index 0397128e170deb..896f57050a8b61 100644
--- a/webextensions/manifest/omnibox.json
+++ b/webextensions/manifest/omnibox.json
@@ -21,6 +21,27 @@
               "version_added": true
             }
           }
+        },
+        "key": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": true
+              },
+              "edge": {
+                "version_added": false
+              },
+              "firefox": {
+                "version_added": "52"
+              },
+              "firefox_android": {
+                "version_added": false
+              },
+              "opera": {
+                "version_added": true
+              }
+            }
+          }
         }
       }
     }
diff --git a/webextensions/manifest/options_ui.json b/webextensions/manifest/options_ui.json
index 502c4eb9c39396..0cc16840cb6711 100644
--- a/webextensions/manifest/options_ui.json
+++ b/webextensions/manifest/options_ui.json
@@ -18,8 +18,7 @@
               "version_added": "57"
             },
             "opera": {
-              "version_added": "27",
-              "notes": "Options pages are always opened in a separate browser tab."
+              "version_added": "27"
             }
           }
         },
@@ -62,7 +61,29 @@
                 "version_added": "57"
               },
               "opera": {
+                "version_added": false,
+                "notes": "Options pages are always opened in a separate browser tab."
+              }
+            }
+          }
+        },
+        "page": {
+          "__compat": {
+            "support": {
+              "chrome": {
+                "version_added": "40"
+              },
+              "edge": {
                 "version_added": false
+              },
+              "firefox": {
+                "version_added": "48"
+              },
+              "firefox_android": {
+                "version_added": "57"
+              },
+              "opera": {
+                "version_added": "27"
               }
             }
           }
diff --git a/webextensions/manifest/page_action.json b/webextensions/manifest/page_action.json
index 86220cbd434048..08fb143b61e3c2 100644
--- a/webextensions/manifest/page_action.json
+++ b/webextensions/manifest/page_action.json
@@ -8,10 +8,7 @@
             "chrome": [
               {
                 "version_added": true,
-                "notes": [
-                  "SVG icons are not supported.",
-                  "If an extension defines a page action, it is not allowed to define a browser action as well."
-                ]
+                "notes": "If an extension defines a page action, it is not allowed to define a browser action as well."
               },
               {
                 "version_added": "49",
@@ -19,11 +16,7 @@
               }
             ],
             "edge": {
-              "version_added": "14",
-              "notes": [
-                "SVG icons are not supported.",
-                "'default_icon' must be an object, with explicit sizes."
-              ]
+              "version_added": "14"
             },
             "firefox": {
               "version_added": "48"
@@ -33,10 +26,7 @@
             },
             "opera": {
               "version_added": true,
-              "notes": [
-                "SVG icons are not supported.",
-                "If an extension defines a page action, it is not allowed to define a browser action as well."
-              ]
+              "notes": "If an extension defines a page action, it is not allowed to define a browser action as well."
             }
           }
         },
@@ -61,6 +51,76 @@
             }
           }
         },
+        "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."
+              }
+            }
+          }
+        },
+        "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
+              }
+            }
+          }
+        },
+        "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
+              }
+            }
+          }
+        },
         "hide_matches": {
           "__compat": {
             "support": {
diff --git a/webextensions/manifest/sidebar_action.json b/webextensions/manifest/sidebar_action.json
index 736bd3a684d872..b0b13fc59cb729 100644
--- a/webextensions/manifest/sidebar_action.json
+++ b/webextensions/manifest/sidebar_action.json
@@ -43,6 +43,70 @@
             }
           }
         },
+        "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."
+              }
+            }
+          }
+        },
+        "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"
+              }
+            }
+          }
+        },
+        "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"
+              }
+            }
+          }
+        },
         "open_at_install": {
           "__compat": {
             "support": {