--- a/devtools/shared/css/generated/properties-db.js
+++ b/devtools/shared/css/generated/properties-db.js
@@ -9525,49 +9525,49 @@ exports.PREFERENCES = [
     "color-interpolation",
     ""
   ],
   [
     "color-interpolation-filters",
     ""
   ],
   [
-    "-moz-column-count",
-    ""
-  ],
-  [
-    "-moz-column-fill",
-    ""
-  ],
-  [
-    "-moz-column-gap",
-    ""
-  ],
-  [
-    "-moz-column-rule",
-    ""
-  ],
-  [
-    "-moz-column-rule-color",
-    ""
-  ],
-  [
-    "-moz-column-rule-style",
-    ""
-  ],
-  [
-    "-moz-column-rule-width",
-    ""
-  ],
-  [
-    "-moz-column-width",
-    ""
-  ],
-  [
-    "-moz-columns",
+    "column-count",
+    ""
+  ],
+  [
+    "column-fill",
+    ""
+  ],
+  [
+    "column-gap",
+    ""
+  ],
+  [
+    "column-rule",
+    ""
+  ],
+  [
+    "column-rule-color",
+    ""
+  ],
+  [
+    "column-rule-style",
+    ""
+  ],
+  [
+    "column-rule-width",
+    ""
+  ],
+  [
+    "column-width",
+    ""
+  ],
+  [
+    "columns",
     ""
   ],
   [
     "contain",
     "layout.css.contain.enabled"
   ],
   [
     "content",
@@ -9986,17 +9986,17 @@ exports.PREFERENCES = [
     ""
   ],
   [
     "mask-size",
     ""
   ],
   [
     "mask-type",
-    "layout.css.masking.enabled"
+    ""
   ],
   [
     "max-block-size",
     ""
   ],
   [
     "max-height",
     ""
@@ -10661,16 +10661,52 @@ exports.PREFERENCES = [
     "-moz-hyphens",
     ""
   ],
   [
     "-moz-text-align-last",
     ""
   ],
   [
+    "-moz-column-count",
+    ""
+  ],
+  [
+    "-moz-column-fill",
+    ""
+  ],
+  [
+    "-moz-column-gap",
+    ""
+  ],
+  [
+    "-moz-column-rule",
+    ""
+  ],
+  [
+    "-moz-column-rule-color",
+    ""
+  ],
+  [
+    "-moz-column-rule-style",
+    ""
+  ],
+  [
+    "-moz-column-rule-width",
+    ""
+  ],
+  [
+    "-moz-column-width",
+    ""
+  ],
+  [
+    "-moz-columns",
+    ""
+  ],
+  [
     "-webkit-animation",
     "layout.css.prefixes.webkit"
   ],
   [
     "-webkit-animation-delay",
     "layout.css.prefixes.webkit"
   ],
   [