diff --git a/layout/style/test/property_database.js b/layout/style/test/property_database.js
index 5bf6524b1faf..fe97ae6c7f56 100644
--- a/layout/style/test/property_database.js
+++ b/layout/style/test/property_database.js
@@ -162,6 +162,7 @@ var gCSSProperties = {
 		domProp: "MozBorderRadius",
 		inherited: false,
 		type: CSS_TYPE_TRUE_SHORTHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		subproperties: [ "-moz-border-radius-bottomleft", "-moz-border-radius-bottomright", "-moz-border-radius-topleft", "-moz-border-radius-topright" ],
 		initial_values: [ "0", "0px", "0px 0 0 0px" ], /* 0% ? */
 		other_values: [ "3%", "1px", "2em", "3em 2px", "2pt 3% 4em", "2px 2px 2px 2px", // circular
@@ -184,6 +185,7 @@ var gCSSProperties = {
 		domProp: "MozBorderRadiusBottomleft",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px" ], /* 0% ? */
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -203,6 +205,7 @@ var gCSSProperties = {
 		domProp: "MozBorderRadiusBottomright",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px" ], /* 0% ? */
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -222,6 +225,7 @@ var gCSSProperties = {
 		domProp: "MozBorderRadiusTopleft",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px" ], /* 0% ? */
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -241,6 +245,7 @@ var gCSSProperties = {
 		domProp: "MozBorderRadiusTopright",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px" ], /* 0% ? */
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -651,6 +656,7 @@ var gCSSProperties = {
 		domProp: "MozOutlineRadius",
 		inherited: false,
 		type: CSS_TYPE_TRUE_SHORTHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		subproperties: [ "-moz-outline-radius-bottomleft", "-moz-outline-radius-bottomright", "-moz-outline-radius-topleft", "-moz-outline-radius-topright" ],
 		initial_values: [ "0", "0px", "0%" ],
 		other_values: [ "3%", "1px", "2em", "3em 2px", "2pt 3% 4em", "2px 2px 2px 2px", // circular
@@ -673,6 +679,7 @@ var gCSSProperties = {
 		domProp: "MozOutlineRadiusBottomleft",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px", "0%" ],
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -692,6 +699,7 @@ var gCSSProperties = {
 		domProp: "MozOutlineRadiusBottomright",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px", "0%" ],
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -711,6 +719,7 @@ var gCSSProperties = {
 		domProp: "MozOutlineRadiusTopleft",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px", "0%" ],
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
@@ -730,6 +739,7 @@ var gCSSProperties = {
 		domProp: "MozOutlineRadiusTopright",
 		inherited: false,
 		type: CSS_TYPE_LONGHAND,
+		prerequisites: { "width": "200px", "height": "100px", "display": "inline-block"},
 		initial_values: [ "0", "0px", "0%" ],
 		other_values: [ "3%", "1px", "2em", // circular
 						"3% 2%", "1px 4px", "2em 2pt", // elliptical
diff --git a/layout/style/test/test_initial_computation.html b/layout/style/test/test_initial_computation.html
index 7e6f91cff4f1..a32bfb5b18fb 100644
--- a/layout/style/test/test_initial_computation.html
+++ b/layout/style/test/test_initial_computation.html
@@ -130,6 +130,15 @@ function test_property(property)
     gElementN.parentNode.style.removeProperty(property);
     gElementF.parentNode.style.removeProperty(property);
   }
+
+  // FIXME: Something (maybe with the -moz-binding values in
+  // test_value_computation.html, but may as well do it here to match)
+  // causes gElementF's frame to get lost.  Force it to get recreated
+  // after each property.
+  gElementF.parentNode.style.display = "none";
+  get_computed_value(getComputedStyle(gElementF, ""), "width");
+  gElementF.parentNode.style.display = "";
+  get_computed_value(getComputedStyle(gElementF, ""), "width");
 }
 
 function run_tests() {
diff --git a/layout/style/test/test_value_computation.html b/layout/style/test/test_value_computation.html
index c35fde4614ea..9ed38f08567a 100644
--- a/layout/style/test/test_value_computation.html
+++ b/layout/style/test/test_value_computation.html
@@ -43,22 +43,19 @@ var gBadComputed = {
   // These values are treated as auto.
   "page-break-after": [ "avoid" ],
   "page-break-before": [ "avoid" ],
+};
 
+var gBadComputedNoFrame = {
   // These are probably bogus tests...
   "-moz-outline-radius": [ "0%" ],
   "-moz-outline-radius-bottomleft": [ "0%" ],
   "-moz-outline-radius-bottomright": [ "0%" ],
   "-moz-outline-radius-topleft": [ "0%" ],
   "-moz-outline-radius-topright": [ "0%" ],
-  // These are probably bogus tests... (why not just when no frame?)
   "-moz-margin-end": [ "0%" ],
   "-moz-margin-start": [ "0%" ],
   "-moz-padding-end": [ "0%" ],
   "-moz-padding-start": [ "0%" ],
-};
-
-var gBadComputedNoFrame = {
-  // These are probably bogus tests...
   "margin": [ "0% 0px 0em 0pt" ],
   "margin-bottom": [ "0%" ],
   "margin-left": [ "0%" ],
@@ -197,6 +194,14 @@ function test_value(property, val, is_initial)
     gElementN.parentNode.style.removeProperty(property);
     gElementF.parentNode.style.removeProperty(property);
   }
+
+  // FIXME: Something (maybe with the -moz-binding values) causes
+  // gElementF's frame to get lost.  Force it to get recreated after
+  // each property.
+  gElementF.parentNode.style.display = "none";
+  get_computed_value(getComputedStyle(gElementF, ""), "width");
+  gElementF.parentNode.style.display = "";
+  get_computed_value(getComputedStyle(gElementF, ""), "width");
 }
 
 function test_property(prop) {