--- a/devtools/client/debugger/new/bundle.js
+++ b/devtools/client/debugger/new/bundle.js
@@ -4847,47 +4847,47 @@ var Debugger =
 	    supports: 0,
 	    values: ["inherit", "initial", "unset", ],
 	  },
 	  "color": {
 	    inherited: true,
 	    supports: 4,
 	    values: ["aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue", "cornsilk", "crimson", "currentColor", "cyan", "darkblue", "darkcyan", "darkgoldenrod", "darkgray", "darkgreen", "darkgrey", "darkkhaki", "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", "darkslateblue", "darkslategray", "darkslategrey", "darkturquoise", "darkviolet", "deeppink", "deepskyblue", "dimgray", "dimgrey", "dodgerblue", "firebrick", "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew", "hotpink", "hsl", "hsla", "indianred", "indigo", "inherit", "initial", "ivory", "khaki", "lavender", "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightgrey", "lightpink", "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightslategrey", "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered", "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", "purple", "rebeccapurple", "red", "rgb", "rgba", "rosybrown", "royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", "slateblue", "slategray", "slategrey", "snow", "springgreen", "steelblue", "tan", "teal", "thistle", "tomato", "transparent", "turquoise", "unset", "violet", "wheat", "white", "whitesmoke", "yellow", "yellowgreen", ],
 	  },
-	  "-moz-column-count": {
+	  "column-count": {
 	    inherited: false,
 	    supports: 1024,
 	    values: ["auto", "inherit", "initial", "unset", ],
 	  },
-	  "-moz-column-fill": {
+	  "column-fill": {
 	    inherited: false,
 	    supports: 0,
 	    values: ["auto", "balance", "inherit", "initial", "unset", ],
 	  },
-	  "-moz-column-width": {
+	  "column-width": {
 	    inherited: false,
 	    supports: 1,
 	    values: ["-moz-calc", "auto", "calc", "inherit", "initial", "unset", ],
 	  },
-	  "-moz-column-gap": {
+	  "column-gap": {
 	    inherited: false,
 	    supports: 1,
 	    values: ["-moz-calc", "calc", "inherit", "initial", "normal", "unset", ],
 	  },
-	  "-moz-column-rule-color": {
+	  "column-rule-color": {
 	    inherited: false,
 	    supports: 4,
 	    values: ["-moz-use-text-color", "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue", "cornsilk", "crimson", "currentColor", "cyan", "darkblue", "darkcyan", "darkgoldenrod", "darkgray", "darkgreen", "darkgrey", "darkkhaki", "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", "darkslateblue", "darkslategray", "darkslategrey", "darkturquoise", "darkviolet", "deeppink", "deepskyblue", "dimgray", "dimgrey", "dodgerblue", "firebrick", "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew", "hotpink", "hsl", "hsla", "indianred", "indigo", "inherit", "initial", "ivory", "khaki", "lavender", "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightgrey", "lightpink", "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightslategrey", "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered", "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", "purple", "rebeccapurple", "red", "rgb", "rgba", "rosybrown", "royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", "slateblue", "slategray", "slategrey", "snow", "springgreen", "steelblue", "tan", "teal", "thistle", "tomato", "transparent", "turquoise", "unset", "violet", "wheat", "white", "whitesmoke", "yellow", "yellowgreen", ],
 	  },
-	  "-moz-column-rule-style": {
+	  "column-rule-style": {
 	    inherited: false,
 	    supports: 0,
 	    values: ["dashed", "dotted", "double", "groove", "hidden", "inherit", "initial", "inset", "none", "outset", "ridge", "solid", "unset", ],
 	  },
-	  "-moz-column-rule-width": {
+	  "column-rule-width": {
 	    inherited: false,
 	    supports: 1,
 	    values: ["-moz-calc", "calc", "inherit", "initial", "medium", "thick", "thin", "unset", ],
 	  },
 	  "contain": {
 	    inherited: false,
 	    supports: 0,
 	    values: ["inherit", "initial", "layout", "none", "paint", "strict", "style", "unset", ],
@@ -5899,17 +5899,17 @@ var Debugger =
 	  },
 	  "-moz-outline-radius": {
 	    subproperties: ["-moz-outline-radius-topleft", "-moz-outline-radius-topright", "-moz-outline-radius-bottomright", "-moz-outline-radius-bottomleft", ],
 	    inherited: false,
 	    supports: 3,
 	    values: ["inherit", "initial", "unset", ],
 	  },
 	  "all": {
-	    subproperties: ["-moz-appearance", "-moz-outline-radius-topleft", "-moz-outline-radius-topright", "-moz-outline-radius-bottomright", "-moz-outline-radius-bottomleft", "-moz-tab-size", "-x-system-font", "animation-delay", "animation-direction", "animation-duration", "animation-fill-mode", "animation-iteration-count", "animation-name", "animation-play-state", "animation-timing-function", "background-attachment", "background-clip", "background-color", "background-image", "background-blend-mode", "background-origin", "background-position", "background-repeat", "background-size", "-moz-binding", "block-size", "border-block-end-color", "border-block-end-style", "border-block-end-width", "border-block-start-color", "border-block-start-style", "border-block-start-width", "border-bottom-color", "-moz-border-bottom-colors", "border-bottom-style", "border-bottom-width", "border-collapse", "border-image-source", "border-image-slice", "border-image-width", "border-image-outset", "border-image-repeat", "border-inline-end-color", "border-inline-end-style", "border-inline-end-width", "border-inline-start-color", "border-inline-start-style", "border-inline-start-width", "border-left-color", "-moz-border-left-colors", "border-left-style", "border-left-width", "border-right-color", "-moz-border-right-colors", "border-right-style", "border-right-width", "border-spacing", "border-top-color", "-moz-border-top-colors", "border-top-style", "border-top-width", "border-top-left-radius", "border-top-right-radius", "border-bottom-right-radius", "border-bottom-left-radius", "bottom", "box-decoration-break", "box-shadow", "box-sizing", "caption-side", "clear", "clip", "color", "-moz-column-count", "-moz-column-fill", "-moz-column-width", "-moz-column-gap", "-moz-column-rule-color", "-moz-column-rule-style", "-moz-column-rule-width", "contain", "content", "-moz-control-character-visibility", "counter-increment", "counter-reset", "cursor", "display", "empty-cells", "align-content", "align-items", "align-self", "flex-basis", "flex-direction", "flex-grow", "flex-shrink", "flex-wrap", "order", "justify-content", "justify-items", "justify-self", "float", "-moz-float-edge", "font-family", "font-feature-settings", "font-kerning", "font-language-override", "font-size", "font-size-adjust", "-moz-osx-font-smoothing", "font-stretch", "font-style", "font-synthesis", "font-variant-alternates", "font-variant-caps", "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric", "font-variant-position", "font-weight", "-moz-force-broken-image-icon", "grid-auto-flow", "grid-auto-columns", "grid-auto-rows", "grid-template-areas", "grid-template-columns", "grid-template-rows", "grid-column-start", "grid-column-end", "grid-row-start", "grid-row-end", "grid-column-gap", "grid-row-gap", "height", "image-orientation", "-moz-image-region", "ime-mode", "inline-size", "left", "letter-spacing", "line-height", "list-style-image", "list-style-position", "list-style-type", "margin-block-end", "margin-block-start", "margin-bottom", "margin-inline-end", "margin-inline-start", "margin-left", "margin-right", "margin-top", "marker-offset", "max-block-size", "max-height", "max-inline-size", "max-width", "-moz-min-font-size-ratio", "min-height", "min-block-size", "min-inline-size", "min-width", "mix-blend-mode", "isolation", "object-fit", "object-position", "offset-block-end", "offset-block-start", "offset-inline-end", "offset-inline-start", "opacity", "-moz-orient", "outline-color", "outline-style", "outline-width", "outline-offset", "overflow-clip-box", "overflow-x", "overflow-y", "padding-block-end", "padding-block-start", "padding-bottom", "padding-inline-end", "padding-inline-start", "padding-left", "padding-right", "padding-top", "page-break-after", "page-break-before", "page-break-inside", "paint-order", "pointer-events", "position", "quotes", "resize", "right", "ruby-align", "ruby-position", "scroll-behavior", "scroll-snap-coordinate", "scroll-snap-destination", "scroll-snap-points-x", "scroll-snap-points-y", "scroll-snap-type-x", "scroll-snap-type-y", "table-layout", "text-align", "-moz-text-align-last", "text-combine-upright", "text-decoration-color", "text-decoration-line", "text-decoration-style", "text-indent", "text-orientation", "text-overflow", "text-shadow", "-moz-text-size-adjust", "text-transform", "transform", "transform-box", "transform-origin", "perspective-origin", "perspective", "transform-style", "backface-visibility", "top", "-moz-top-layer", "touch-action", "transition-delay", "transition-duration", "transition-property", "transition-timing-function", "-moz-user-focus", "-moz-user-input", "-moz-user-modify", "-moz-user-select", "vertical-align", "visibility", "white-space", "width", "-moz-window-dragging", "-moz-window-shadow", "word-break", "word-spacing", "word-wrap", "hyphens", "writing-mode", "z-index", "-moz-box-align", "-moz-box-direction", "-moz-box-flex", "-moz-box-orient", "-moz-box-pack", "-moz-box-ordinal-group", "-moz-stack-sizing", "clip-path", "clip-rule", "color-interpolation", "color-interpolation-filters", "dominant-baseline", "fill", "fill-opacity", "fill-rule", "filter", "flood-color", "flood-opacity", "image-rendering", "lighting-color", "marker-end", "marker-mid", "marker-start", "mask", "mask-type", "shape-rendering", "stop-color", "stop-opacity", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-anchor", "text-rendering", "vector-effect", "will-change", ],
+	    subproperties: ["-moz-appearance", "-moz-outline-radius-topleft", "-moz-outline-radius-topright", "-moz-outline-radius-bottomright", "-moz-outline-radius-bottomleft", "-moz-tab-size", "-x-system-font", "animation-delay", "animation-direction", "animation-duration", "animation-fill-mode", "animation-iteration-count", "animation-name", "animation-play-state", "animation-timing-function", "background-attachment", "background-clip", "background-color", "background-image", "background-blend-mode", "background-origin", "background-position", "background-repeat", "background-size", "-moz-binding", "block-size", "border-block-end-color", "border-block-end-style", "border-block-end-width", "border-block-start-color", "border-block-start-style", "border-block-start-width", "border-bottom-color", "-moz-border-bottom-colors", "border-bottom-style", "border-bottom-width", "border-collapse", "border-image-source", "border-image-slice", "border-image-width", "border-image-outset", "border-image-repeat", "border-inline-end-color", "border-inline-end-style", "border-inline-end-width", "border-inline-start-color", "border-inline-start-style", "border-inline-start-width", "border-left-color", "-moz-border-left-colors", "border-left-style", "border-left-width", "border-right-color", "-moz-border-right-colors", "border-right-style", "border-right-width", "border-spacing", "border-top-color", "-moz-border-top-colors", "border-top-style", "border-top-width", "border-top-left-radius", "border-top-right-radius", "border-bottom-right-radius", "border-bottom-left-radius", "bottom", "box-decoration-break", "box-shadow", "box-sizing", "caption-side", "clear", "clip", "color", "column-count", "column-fill", "column-width", "column-gap", "column-rule-color", "column-rule-style", "column-rule-width", "contain", "content", "-moz-control-character-visibility", "counter-increment", "counter-reset", "cursor", "display", "empty-cells", "align-content", "align-items", "align-self", "flex-basis", "flex-direction", "flex-grow", "flex-shrink", "flex-wrap", "order", "justify-content", "justify-items", "justify-self", "float", "-moz-float-edge", "font-family", "font-feature-settings", "font-kerning", "font-language-override", "font-size", "font-size-adjust", "-moz-osx-font-smoothing", "font-stretch", "font-style", "font-synthesis", "font-variant-alternates", "font-variant-caps", "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric", "font-variant-position", "font-weight", "-moz-force-broken-image-icon", "grid-auto-flow", "grid-auto-columns", "grid-auto-rows", "grid-template-areas", "grid-template-columns", "grid-template-rows", "grid-column-start", "grid-column-end", "grid-row-start", "grid-row-end", "grid-column-gap", "grid-row-gap", "height", "image-orientation", "-moz-image-region", "ime-mode", "inline-size", "left", "letter-spacing", "line-height", "list-style-image", "list-style-position", "list-style-type", "margin-block-end", "margin-block-start", "margin-bottom", "margin-inline-end", "margin-inline-start", "margin-left", "margin-right", "margin-top", "marker-offset", "max-block-size", "max-height", "max-inline-size", "max-width", "-moz-min-font-size-ratio", "min-height", "min-block-size", "min-inline-size", "min-width", "mix-blend-mode", "isolation", "object-fit", "object-position", "offset-block-end", "offset-block-start", "offset-inline-end", "offset-inline-start", "opacity", "-moz-orient", "outline-color", "outline-style", "outline-width", "outline-offset", "overflow-clip-box", "overflow-x", "overflow-y", "padding-block-end", "padding-block-start", "padding-bottom", "padding-inline-end", "padding-inline-start", "padding-left", "padding-right", "padding-top", "page-break-after", "page-break-before", "page-break-inside", "paint-order", "pointer-events", "position", "quotes", "resize", "right", "ruby-align", "ruby-position", "scroll-behavior", "scroll-snap-coordinate", "scroll-snap-destination", "scroll-snap-points-x", "scroll-snap-points-y", "scroll-snap-type-x", "scroll-snap-type-y", "table-layout", "text-align", "-moz-text-align-last", "text-combine-upright", "text-decoration-color", "text-decoration-line", "text-decoration-style", "text-indent", "text-orientation", "text-overflow", "text-shadow", "-moz-text-size-adjust", "text-transform", "transform", "transform-box", "transform-origin", "perspective-origin", "perspective", "transform-style", "backface-visibility", "top", "-moz-top-layer", "touch-action", "transition-delay", "transition-duration", "transition-property", "transition-timing-function", "-moz-user-focus", "-moz-user-input", "-moz-user-modify", "-moz-user-select", "vertical-align", "visibility", "white-space", "width", "-moz-window-dragging", "-moz-window-shadow", "word-break", "word-spacing", "word-wrap", "hyphens", "writing-mode", "z-index", "-moz-box-align", "-moz-box-direction", "-moz-box-flex", "-moz-box-orient", "-moz-box-pack", "-moz-box-ordinal-group", "-moz-stack-sizing", "clip-path", "clip-rule", "color-interpolation", "color-interpolation-filters", "dominant-baseline", "fill", "fill-opacity", "fill-rule", "filter", "flood-color", "flood-opacity", "image-rendering", "lighting-color", "marker-end", "marker-mid", "marker-start", "mask", "mask-type", "shape-rendering", "stop-color", "stop-opacity", "stroke", "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-anchor", "text-rendering", "vector-effect", "will-change", ],
 	    inherited: false,
 	    supports: 2015,
 	    values: ["-moz-all", "-moz-available", "-moz-block-height", "-moz-box", "-moz-calc", "-moz-center", "-moz-crisp-edges", "-moz-deck", "-moz-element", "-moz-fit-content", "-moz-grid", "-moz-grid-group", "-moz-grid-line", "-moz-groupbox", "-moz-gtk-info-bar", "-moz-hidden-unscrollable", "-moz-image-rect", "-moz-inline-box", "-moz-inline-grid", "-moz-inline-stack", "-moz-left", "-moz-linear-gradient", "-moz-mac-disclosure-button-closed", "-moz-mac-disclosure-button-open", "-moz-mac-fullscreen-button", "-moz-mac-help-button", "-moz-mac-vibrancy-dark", "-moz-mac-vibrancy-light", "-moz-max-content", "-moz-middle-with-baseline", "-moz-min-content", "-moz-none", "-moz-popup", "-moz-pre-space", "-moz-radial-gradient", "-moz-repeating-linear-gradient", "-moz-repeating-radial-gradient", "-moz-right", "-moz-stack", "-moz-text", "-moz-use-text-color", "-moz-win-borderless-glass", "-moz-win-browsertabbar-toolbox", "-moz-win-communications-toolbox", "-moz-win-exclude-glass", "-moz-win-glass", "-moz-win-media-toolbox", "-moz-window-button-box", "-moz-window-button-box-maximized", "-moz-window-button-close", "-moz-window-button-maximize", "-moz-window-button-minimize", "-moz-window-button-restore", "-moz-window-frame-bottom", "-moz-window-frame-left", "-moz-window-frame-right", "-moz-window-titlebar", "-moz-window-titlebar-maximized", "absolute", "active", "aliceblue", "all", "all-petite-caps", "all-small-caps", "alpha", "alphabetic", "alternate", "alternate-reverse", "always", "antiquewhite", "aqua", "aquamarine", "auto", "avoid", "azure", "backwards", "balance", "baseline", "beige", "bevel", "bisque", "black", "blanchedalmond", "block", "block-axis", "blue", "blueviolet", "border-box", "both", "bottom", "bottom-outside", "break-all", "break-word", "brown", "burlywood", "butt", "button", "button-arrow-down", "button-arrow-next", "button-arrow-previous", "button-arrow-up", "button-bevel", "button-focus", "cadetblue", "calc", "capitalize", "caret", "center", "central", "chartreuse", "checkbox", "checkbox-container", "checkbox-label", "checkmenuitem", "chocolate", "clone", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse", "condensed", "contain", "content-box", "contents", "coral", "cornflowerblue", "cornsilk", "cover", "crimson", "crispedges", "cubic-bezier", "currentColor", "cyan", "darkblue", "darkcyan", "darken", "darkgoldenrod", "darkgray", "darkgreen", "darkgrey", "darkkhaki", "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", "darkslateblue", "darkslategray", "darkslategrey", "darkturquoise", "darkviolet", "dashed", "deeppink", "deepskyblue", "dialog", "difference", "dimgray", "dimgrey", "disabled", "dodgerblue", "dotted", "double", "drag", "dualbutton", "ease", "ease-in", "ease-in-out", "ease-out", "element", "elements", "enabled", "end", "evenodd", "exclusion", "expanded", "extra-condensed", "extra-expanded", "fill", "fill-box", "firebrick", "fixed", "flat", "flex", "floralwhite", "forestgreen", "forwards", "fuchsia", "full-width", "gainsboro", "geometricprecision", "ghostwhite", "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "grid", "groove", "groupbox", "hanging", "hard-light", "hidden", "hide", "honeydew", "horizontal", "horizontal-tb", "hotpink", "hsl", "hsla", "hue", "ideographic", "ignore", "inactive", "indianred", "indigo", "infinite", "inherit", "initial", "inline", "inline-axis", "inline-block", "inline-end", "inline-flex", "inline-grid", "inline-start", "inline-table", "inset", "inside", "isolate", "italic", "ivory", "justify", "keep-all", "khaki", "large", "larger", "lavender", "lavenderblush", "lawngreen", "layout", "left", "lemonchiffon", "lightblue", "lightcoral", "lightcyan", "lighten", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightgrey", "lightpink", "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightslategrey", "lightsteelblue", "lightyellow", "lime", "limegreen", "linear", "linear-gradient", "linearrgb", "linen", "list-item", "listbox", "listitem", "local", "lowercase", "lr", "lr-tb", "luminance", "luminosity", "magenta", "mandatory", "manual", "margin-box", "maroon", "mathematical", "medium", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", "mediumvioletred", "menuarrow", "menubar", "menucheckbox", "menuimage", "menuitem", "menuitemtext", "menulist", "menulist-button", "menulist-text", "menulist-textfield", "menupopup", "menuradio", "menuseparator", "meterbar", "meterchunk", "middle", "midnightblue", "mintcream", "mistyrose", "miter", "mixed", "moccasin", "multiply", "navajowhite", "navy", "no-change", "no-drag", "no-repeat", "non-scaling-stroke", "none", "nonzero", "normal", "nowrap", "number-input", "oblique", "oldlace", "olive", "olivedrab", "optimizelegibility", "optimizequality", "optimizespeed", "orange", "orangered", "orchid", "outset", "outside", "over", "overlay", "padding-box", "paint", "painted", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", "papayawhip", "paused", "peachpuff", "peru", "petite-caps", "pink", "plum", "powderblue", "pre", "pre-line", "pre-wrap", "preserve-3d", "progressbar", "progressbar-vertical", "progresschunk", "progresschunk-vertical", "proximity", "purple", "radial-gradient", "radio", "radio-container", "radio-label", "radiomenuitem", "range", "range-thumb", "read-only", "read-write", "rebeccapurple", "red", "relative", "repeat", "repeat-x", "repeat-y", "repeating-linear-gradient", "repeating-radial-gradient", "reset-size", "resizer", "resizerpanel", "reverse", "rgb", "rgba", "ridge", "right", "rl", "rl-tb", "rosybrown", "round", "row", "row-reverse", "royalblue", "ruby", "ruby-base", "ruby-base-container", "ruby-text", "ruby-text-container", "running", "saddlebrown", "salmon", "sandybrown", "saturation", "scale-down", "scale-horizontal", "scale-vertical", "scalethumb-horizontal", "scalethumb-vertical", "scalethumbend", "scalethumbstart", "scalethumbtick", "screen", "scroll", "scrollbar", "scrollbar-small", "scrollbarbutton-down", "scrollbarbutton-left", "scrollbarbutton-right", "scrollbarbutton-up", "scrollbarthumb-horizontal", "scrollbarthumb-vertical", "scrollbartrack-horizontal", "scrollbartrack-vertical", "seagreen", "searchfield", "seashell", "select-after", "select-all", "select-before", "select-menu", "select-same", "semi-condensed", "semi-expanded", "separate", "separator", "show", "sideways", "sideways-lr", "sideways-right", "sideways-rl", "sienna", "silver", "skyblue", "slateblue", "slategray", "slategrey", "slice", "small", "small-caps", "smaller", "smooth", "snow", "soft-light", "solid", "space-around", "space-between", "spinner", "spinner-downbutton", "spinner-textfield", "spinner-upbutton", "splitter", "springgreen", "square", "srgb", "start", "static", "statusbar", "statusbarpanel", "steelblue", "step-end", "step-start", "steps", "sticky", "stretch", "stretch-to-fit", "strict", "stroke", "style", "sub", "super", "tab", "tab-scroll-arrow-back", "tab-scroll-arrow-forward", "table", "table-caption", "table-cell", "table-column", "table-column-group", "table-footer-group", "table-header-group", "table-row", "table-row-group", "tabpanel", "tabpanels", "tan", "tb", "tb-rl", "teal", "text", "text-after-edge", "text-before-edge", "text-bottom", "text-top", "textfield", "textfield-multiline", "thick", "thin", "thistle", "titling-caps", "toggle", "tomato", "toolbar", "toolbarbutton", "toolbarbutton-dropdown", "toolbargripper", "toolbox", "tooltip", "top", "top-outside", "transparent", "treeheader", "treeheadercell", "treeheadersortarrow", "treeitem", "treeline", "treetwisty", "treetwistyopen", "treeview", "tri-state", "turquoise", "ultra-condensed", "ultra-expanded", "under", "unicase", "unset", "uppercase", "upright", "url", "use-script", "vertical", "vertical-lr", "vertical-rl", "view-box", "violet", "visible", "visiblefill", "visiblepainted", "visiblestroke", "wavy", "wheat", "white", "whitesmoke", "window", "wrap", "wrap-reverse", "write-only", "x-large", "x-small", "xx-large", "xx-small", "yellow", "yellowgreen", ],
 	  },
 	  "animation": {
 	    subproperties: ["animation-duration", "animation-timing-function", "animation-delay", "animation-direction", "animation-fill-mode", "animation-iteration-count", "animation-play-state", "animation-name", ],
 	    inherited: false,
 	    supports: 1344,
@@ -6000,24 +6000,24 @@ var Debugger =
 	    values: ["-moz-calc", "calc", "inherit", "initial", "medium", "thick", "thin", "unset", ],
 	  },
 	  "border-radius": {
 	    subproperties: ["border-top-left-radius", "border-top-right-radius", "border-bottom-right-radius", "border-bottom-left-radius", ],
 	    inherited: false,
 	    supports: 3,
 	    values: ["inherit", "initial", "unset", ],
 	  },
-	  "-moz-columns": {
-	    subproperties: ["-moz-column-count", "-moz-column-width", ],
+	  "columns": {
+	    subproperties: ["column-count", "column-width", ],
 	    inherited: false,
 	    supports: 1025,
 	    values: ["-moz-calc", "auto", "calc", "inherit", "initial", "unset", ],
 	  },
-	  "-moz-column-rule": {
-	    subproperties: ["-moz-column-rule-width", "-moz-column-rule-style", "-moz-column-rule-color", ],
+	  "column-rule": {
+	    subproperties: ["column-rule-width", "column-rule-style", "column-rule-color", ],
 	    inherited: false,
 	    supports: 5,
 	    values: ["-moz-calc", "-moz-use-text-color", "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", "burlywood", "cadetblue", "calc", "chartreuse", "chocolate", "coral", "cornflowerblue", "cornsilk", "crimson", "currentColor", "cyan", "darkblue", "darkcyan", "darkgoldenrod", "darkgray", "darkgreen", "darkgrey", "darkkhaki", "darkmagenta", "darkolivegreen", "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", "darkslateblue", "darkslategray", "darkslategrey", "darkturquoise", "darkviolet", "dashed", "deeppink", "deepskyblue", "dimgray", "dimgrey", "dodgerblue", "dotted", "double", "firebrick", "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "groove", "hidden", "honeydew", "hotpink", "hsl", "hsla", "indianred", "indigo", "inherit", "initial", "inset", "ivory", "khaki", "lavender", "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightgrey", "lightpink", "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", "lightslategrey", "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", "maroon", "medium", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", "navajowhite", "navy", "none", "oldlace", "olive", "olivedrab", "orange", "orangered", "orchid", "outset", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", "purple", "rebeccapurple", "red", "rgb", "rgba", "ridge", "rosybrown", "royalblue", "saddlebrown", "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", "slateblue", "slategray", "slategrey", "snow", "solid", "springgreen", "steelblue", "tan", "teal", "thick", "thin", "thistle", "tomato", "transparent", "turquoise", "unset", "violet", "wheat", "white", "whitesmoke", "yellow", "yellowgreen", ],
 	  },
 	  "flex": {
 	    subproperties: ["flex-grow", "flex-shrink", "flex-basis", ],
 	    inherited: false,
 	    supports: 1027,
@@ -45208,9 +45208,9 @@ var Debugger =
 /***/ },
 /* 436 */
 /***/ function(module, exports) {
 
 	// removed by extract-text-webpack-plugin
 
 /***/ }
 /******/ ]);
-//# sourceMappingURL=bundle.js.map
\ No newline at end of file
+//# sourceMappingURL=bundle.js.map

--- a/devtools/client/themes/styleeditor.css
+++ b/devtools/client/themes/styleeditor.css
@@ -316,17 +316,17 @@ h3 {
   padding: 0 10px;
   overflow-x: hidden;
   overflow-y: auto;
   -moz-box-flex: 1;
 }
 
 .csscoverage-report-content {
   margin: 20px auto;
-  -moz-column-width: 300px;
+  column-width: 300px;
   font-size: 13px;
   -moz-user-select: text;
 }
 
 .csscoverage-report-summary,
 .csscoverage-report-unused,
 .csscoverage-report-optimize {
   display: inline-block;

--- a/dom/grid/test/chrome/test_grid_fragmentation.html
+++ b/dom/grid/test/chrome/test_grid_fragmentation.html
@@ -16,21 +16,21 @@
   <style type="text/css">
 html,body {
     color:black; background-color:white; font-size:16px; padding:0; margin:0;
 }
 body { overflow:hidden; }
 
 .columns {
   position:relative;
-     -moz-columns: 5;
+     columns: 5;
       -ms-columns: 5;
   -webkit-columns: 5;
           columns: 5;
-     -moz-column-fill: auto;
+     column-fill: auto;
       -ms-column-fill: auto;
   -webkit-column-fill: auto;
           column-fill: auto;
   border: 2px dashed;
   margin-bottom: 5px;
 }
 
 .grid {

--- a/dom/tests/mochitest/general/test_clientRects.html
+++ b/dom/tests/mochitest/general/test_clientRects.html
@@ -50,17 +50,17 @@ function checkElement(id, list, eps, doc
   }
   checkRect(e.getBoundingClientRect(), bounds, eps, "getBoundingClientRect()", " for element '" + id + "'");
 }
 </script>
 
 <!-- Simple case -->
 <div id="d1" style="position:absolute; left:50px; top:50px; width:20px; height:30px; background:pink;"></div>
 <!-- Multiple boxes -->
-<div style="position:absolute; left:50px; top:100px; width:400px; height:100px; -moz-column-count:2; -moz-column-gap:0; column-count:2; column-gap:0">
+<div style="position:absolute; left:50px; top:100px; width:400px; height:100px; column-count:2; column-gap:0; column-count:2; column-gap:0">
   <div id="d2">
     <div style="width:200px; height:100px; background:yellow"></div>
     <div style="width:200px; height:100px; background:lime"></div>
   </div>
 </div>
 <!-- No boxes -->
 <div id="d3" style="display:none"></div>
 <!-- Element in transform -->

--- a/gfx/tests/crashtests/768079-1.html
+++ b/gfx/tests/crashtests/768079-1.html
@@ -1,4 +1,4 @@
 <!DOCTYPE html>
 <html style="-moz-perspective: 7000px; overflow: hidden;">
-<body style="overflow: hidden; -moz-transform: rotateX(30deg); border-radius: 1px; -moz-columns: 2 10px; visibility: collapse;">X</body>
+<body style="overflow: hidden; -moz-transform: rotateX(30deg); border-radius: 1px; columns: 2 10px; visibility: collapse;">X</body>
 </html>

--- a/layout/base/crashtests/337419-1.html
+++ b/layout/base/crashtests/337419-1.html
@@ -1,14 +1,14 @@
 <html>
 <head>
 
 <style>
 #container {
-	-moz-column-count: 3;
+	column-count: 3;
 }
 #right {
 	float: right;
     overflow: hidden;
 }
 </style>
 
 <link rel="alternate" type="application/atom+xml" title="Atom" href="http://weblogs.mozillazine.org/roc/atom.xml" />

--- a/layout/base/crashtests/386266-1.html
+++ b/layout/base/crashtests/386266-1.html
@@ -1,15 +1,15 @@
 <!DOCTYPE html>
 <html>
 <head>
 
 <style>
 #outer { 
-  -moz-column-count: 2;
+  column-count: 2;
 }
 #inner {
   border: 1px solid green;
 }
 </style>
 
 <style id="s">
 #inner { 

--- a/layout/base/crashtests/397011-1.xhtml
+++ b/layout/base/crashtests/397011-1.xhtml
@@ -1,13 +1,13 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
 </head>
 <body>
 
 <div style="text-indent: 11.2px;">
-  <div style="-moz-column-count: 2;">
+  <div style="column-count: 2;">
     <span style="float: left;"></span>
   </div>
 </div>
 
 </body>
 </html>

--- a/layout/base/crashtests/399687-1.html
+++ b/layout/base/crashtests/399687-1.html
@@ -1,17 +1,17 @@
 <html>
 <head>
 <style>
 
 #colset {
   width: 300pt;
   height: 2in;
-  -moz-column-count: 3;
-  -moz-column-gap: 0;
+  column-count: 3;
+  column-gap: 0;
 }
 
 .ocontainer {
   height: 0;
 }
 
 .overflow {
   height: 5in;