diff --git a/dom/base/nsDOMClassInfo.cpp b/dom/base/nsDOMClassInfo.cpp
index c084247c6b9e..7fbe2fc997a8 100644
--- a/dom/base/nsDOMClassInfo.cpp
+++ b/dom/base/nsDOMClassInfo.cpp
@@ -74,13 +74,13 @@
 #include "nsMemory.h"
 
 // includes needed for the prototype chain interfaces
+#include "nsIDOMCSSKeyframeRule.h"
+#include "nsIDOMCSSKeyframesRule.h"
 #include "nsIDOMCSSImportRule.h"
 #include "nsIDOMCSSMediaRule.h"
 #include "nsIDOMCSSFontFaceRule.h"
 #include "nsIDOMCSSMozDocumentRule.h"
 #include "nsIDOMCSSSupportsRule.h"
-#include "nsIDOMMozCSSKeyframeRule.h"
-#include "nsIDOMMozCSSKeyframesRule.h"
 #include "nsIDOMCSSCounterStyleRule.h"
 #include "nsIDOMCSSPageRule.h"
 #include "nsIDOMCSSStyleRule.h"
@@ -248,9 +248,9 @@ static nsDOMClassInfoData sClassInfoData[] = {
                                        DOM_DEFAULT_SCRIPTABLE_FLAGS)
 
 
-  NS_DEFINE_CLASSINFO_DATA(MozCSSKeyframeRule, nsDOMGenericSH,
+  NS_DEFINE_CLASSINFO_DATA(CSSKeyframeRule, nsDOMGenericSH,
                            DOM_DEFAULT_SCRIPTABLE_FLAGS)
-  NS_DEFINE_CLASSINFO_DATA(MozCSSKeyframesRule, nsDOMGenericSH,
+  NS_DEFINE_CLASSINFO_DATA(CSSKeyframesRule, nsDOMGenericSH,
                            DOM_DEFAULT_SCRIPTABLE_FLAGS)
 
   NS_DEFINE_CLASSINFO_DATA(CSSCounterStyleRule, nsDOMGenericSH,
@@ -602,12 +602,12 @@ nsDOMClassInfo::Init()
     DOM_CLASSINFO_MAP_ENTRY(nsIMessageSender)
   DOM_CLASSINFO_MAP_END
 
-  DOM_CLASSINFO_MAP_BEGIN(MozCSSKeyframeRule, nsIDOMMozCSSKeyframeRule)
-    DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozCSSKeyframeRule)
+  DOM_CLASSINFO_MAP_BEGIN(CSSKeyframeRule, nsIDOMCSSKeyframeRule)
+    DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSKeyframeRule)
   DOM_CLASSINFO_MAP_END
 
-  DOM_CLASSINFO_MAP_BEGIN(MozCSSKeyframesRule, nsIDOMMozCSSKeyframesRule)
-    DOM_CLASSINFO_MAP_ENTRY(nsIDOMMozCSSKeyframesRule)
+  DOM_CLASSINFO_MAP_BEGIN(CSSKeyframesRule, nsIDOMCSSKeyframesRule)
+    DOM_CLASSINFO_MAP_ENTRY(nsIDOMCSSKeyframesRule)
   DOM_CLASSINFO_MAP_END
 
   DOM_CLASSINFO_MAP_BEGIN(CSSCounterStyleRule, nsIDOMCSSCounterStyleRule)
diff --git a/dom/base/nsDOMClassInfoClasses.h b/dom/base/nsDOMClassInfoClasses.h
index 0fcd0e4ebf90..53a065070e41 100644
--- a/dom/base/nsDOMClassInfoClasses.h
+++ b/dom/base/nsDOMClassInfoClasses.h
@@ -40,8 +40,8 @@ DOMCI_CLASS(ContentProcessMessageManager)
 DOMCI_CLASS(ChromeMessageBroadcaster)
 DOMCI_CLASS(ChromeMessageSender)
 
-DOMCI_CLASS(MozCSSKeyframeRule)
-DOMCI_CLASS(MozCSSKeyframesRule)
+DOMCI_CLASS(CSSKeyframeRule)
+DOMCI_CLASS(CSSKeyframesRule)
 
 // @counter-style in CSS
 DOMCI_CLASS(CSSCounterStyleRule)
diff --git a/dom/interfaces/base/domstubs.idl b/dom/interfaces/base/domstubs.idl
index 165c19d8da53..4422b791e769 100644
--- a/dom/interfaces/base/domstubs.idl
+++ b/dom/interfaces/base/domstubs.idl
@@ -61,7 +61,7 @@ interface nsIDOMCSSValue;
 interface nsIDOMCSSPrimitiveValue;
 interface nsIDOMCSSRule;
 interface nsIDOMCSSRuleList;
-interface nsIDOMMozCSSKeyframeRule;
+interface nsIDOMCSSKeyframeRule;
 interface nsIDOMCSSFontFeatureValuesRule;
 interface nsIDOMCSSStyleSheet;
 interface nsIDOMCSSStyleDeclaration;
diff --git a/dom/interfaces/css/moz.build b/dom/interfaces/css/moz.build
index 405f48a87768..afb84ce7ddce 100644
--- a/dom/interfaces/css/moz.build
+++ b/dom/interfaces/css/moz.build
@@ -12,6 +12,8 @@ XPIDL_SOURCES += [
     'nsIDOMCSSFontFeatureValuesRule.idl',
     'nsIDOMCSSGroupingRule.idl',
     'nsIDOMCSSImportRule.idl',
+    'nsIDOMCSSKeyframeRule.idl',
+    'nsIDOMCSSKeyframesRule.idl',
     'nsIDOMCSSMediaRule.idl',
     'nsIDOMCSSMozDocumentRule.idl',
     'nsIDOMCSSPageRule.idl',
@@ -26,8 +28,6 @@ XPIDL_SOURCES += [
     'nsIDOMCSSValue.idl',
     'nsIDOMCSSValueList.idl',
     'nsIDOMElementCSSInlineStyle.idl',
-    'nsIDOMMozCSSKeyframeRule.idl',
-    'nsIDOMMozCSSKeyframesRule.idl',
     'nsIDOMRect.idl',
 ]
 
diff --git a/dom/interfaces/css/nsIDOMMozCSSKeyframeRule.idl b/dom/interfaces/css/nsIDOMCSSKeyframeRule.idl
similarity index 90%
rename from dom/interfaces/css/nsIDOMMozCSSKeyframeRule.idl
rename to dom/interfaces/css/nsIDOMCSSKeyframeRule.idl
index 90927b4d5f66..46e7ffbb1004 100644
--- a/dom/interfaces/css/nsIDOMMozCSSKeyframeRule.idl
+++ b/dom/interfaces/css/nsIDOMCSSKeyframeRule.idl
@@ -6,7 +6,7 @@
 #include "nsIDOMCSSRule.idl"
 
 [scriptable, uuid(a281a8b4-eaa2-49a8-8b97-acc2814a57c9)]
-interface nsIDOMMozCSSKeyframeRule : nsIDOMCSSRule
+interface nsIDOMCSSKeyframeRule : nsIDOMCSSRule
 {
            attribute DOMString                 keyText;
   readonly attribute nsIDOMCSSStyleDeclaration style;
diff --git a/dom/interfaces/css/nsIDOMMozCSSKeyframesRule.idl b/dom/interfaces/css/nsIDOMCSSKeyframesRule.idl
similarity index 84%
rename from dom/interfaces/css/nsIDOMMozCSSKeyframesRule.idl
rename to dom/interfaces/css/nsIDOMCSSKeyframesRule.idl
index 46920633f165..acbb657e47d6 100644
--- a/dom/interfaces/css/nsIDOMMozCSSKeyframesRule.idl
+++ b/dom/interfaces/css/nsIDOMCSSKeyframesRule.idl
@@ -6,12 +6,12 @@
 #include "nsIDOMCSSRule.idl"
 
 [scriptable, uuid(400f4b70-ad0a-4047-aba4-ee8019f6b907)]
-interface nsIDOMMozCSSKeyframesRule : nsIDOMCSSRule
+interface nsIDOMCSSKeyframesRule : nsIDOMCSSRule
 {
            attribute DOMString         name;
   readonly attribute nsIDOMCSSRuleList cssRules;
 
   void                     appendRule(in DOMString rule);
   void                     deleteRule(in DOMString key);
-  nsIDOMMozCSSKeyframeRule findRule(in DOMString key);
+  nsIDOMCSSKeyframeRule    findRule(in DOMString key);
 };
diff --git a/dom/tests/mochitest/general/test_interfaces.html b/dom/tests/mochitest/general/test_interfaces.html
index 51c091a279e6..734c3bf6d21b 100644
--- a/dom/tests/mochitest/general/test_interfaces.html
+++ b/dom/tests/mochitest/general/test_interfaces.html
@@ -343,6 +343,10 @@ var interfaceNamesInGlobalScope =
     "CSSGroupingRule",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "CSSImportRule",
+// IMPORTANT: Do not change this list without review from a DOM peer!
+    "CSSKeyframeRule",
+// IMPORTANT: Do not change this list without review from a DOM peer!
+    "CSSKeyframesRule",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "CSSMediaRule",
 // IMPORTANT: Do not change this list without review from a DOM peer!
@@ -801,10 +805,6 @@ var interfaceNamesInGlobalScope =
     {name: "mozContact", b2g: true, permission: "contacts-read"},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "MozContactChangeEvent", b2g: true, permission: "contacts-read"},
-// IMPORTANT: Do not change this list without review from a DOM peer!
-    "MozCSSKeyframeRule",
-// IMPORTANT: Do not change this list without review from a DOM peer!
-    "MozCSSKeyframesRule",
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "MozEmergencyCbModeEvent", b2g: true},
 // IMPORTANT: Do not change this list without review from a DOM peer!
diff --git a/layout/style/nsCSSRules.cpp b/layout/style/nsCSSRules.cpp
index ab6bbe5d9a35..a8322e9c94ad 100644
--- a/layout/style/nsCSSRules.cpp
+++ b/layout/style/nsCSSRules.cpp
@@ -2010,10 +2010,10 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
 
 // QueryInterface implementation for nsCSSKeyframeRule
 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSKeyframeRule)
-  NS_INTERFACE_MAP_ENTRY(nsIDOMMozCSSKeyframeRule)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSKeyframeRule)
   NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozilla::css::Rule)
-  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozCSSKeyframeRule)
+  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSKeyframeRule)
 NS_INTERFACE_MAP_END
 
 IMPL_STYLE_RULE_INHERIT_GET_DOM_RULE_WEAK(nsCSSKeyframeRule, Rule)
@@ -2218,9 +2218,9 @@ NS_IMPL_RELEASE_INHERITED(nsCSSKeyframesRule, css::GroupRule)
 // QueryInterface implementation for nsCSSKeyframesRule
 NS_INTERFACE_MAP_BEGIN(nsCSSKeyframesRule)
   NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
-  NS_INTERFACE_MAP_ENTRY(nsIDOMMozCSSKeyframesRule)
+  NS_INTERFACE_MAP_ENTRY(nsIDOMCSSKeyframesRule)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, mozilla::css::Rule)
-  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(MozCSSKeyframesRule)
+  NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSKeyframesRule)
 NS_INTERFACE_MAP_END_INHERITING(GroupRule)
 
 #ifdef DEBUG
@@ -2411,7 +2411,7 @@ nsCSSKeyframesRule::DeleteRule(const nsAString& aKey)
 
 NS_IMETHODIMP
 nsCSSKeyframesRule::FindRule(const nsAString& aKey,
-                             nsIDOMMozCSSKeyframeRule** aResult)
+                             nsIDOMCSSKeyframeRule** aResult)
 {
   uint32_t index = FindRuleIndexForKey(aKey);
   if (index == RULE_NOT_FOUND) {
diff --git a/layout/style/nsCSSRules.h b/layout/style/nsCSSRules.h
index 1c0e2289407e..a5bd033b8c4f 100644
--- a/layout/style/nsCSSRules.h
+++ b/layout/style/nsCSSRules.h
@@ -31,8 +31,8 @@
 #include "nsIDOMCSSMozDocumentRule.h"
 #include "nsIDOMCSSPageRule.h"
 #include "nsIDOMCSSSupportsRule.h"
-#include "nsIDOMMozCSSKeyframeRule.h"
-#include "nsIDOMMozCSSKeyframesRule.h"
+#include "nsIDOMCSSKeyframeRule.h"
+#include "nsIDOMCSSKeyframesRule.h"
 #include "nsTArray.h"
 
 class nsMediaList;
@@ -375,7 +375,7 @@ protected:
 };
 
 class nsCSSKeyframeRule final : public mozilla::css::Rule,
-                                public nsIDOMMozCSSKeyframeRule
+                                public nsIDOMCSSKeyframeRule
 {
 public:
   // Steals the contents of aKeys, and takes the reference in Declaration
@@ -406,8 +406,8 @@ public:
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
 
-  // nsIDOMMozCSSKeyframeRule interface
-  NS_DECL_NSIDOMMOZCSSKEYFRAMERULE
+  // nsIDOMCSSKeyframeRule interface
+  NS_DECL_NSIDOMCSSKEYFRAMERULE
 
   const nsTArray<float>& GetKeys() const     { return mKeys; }
   mozilla::css::Declaration* Declaration()   { return mDeclaration; }
@@ -426,7 +426,7 @@ private:
 };
 
 class nsCSSKeyframesRule final : public mozilla::css::GroupRule,
-                                 public nsIDOMMozCSSKeyframesRule
+                                 public nsIDOMCSSKeyframesRule
 {
 public:
   nsCSSKeyframesRule(const nsSubstring& aName,
@@ -459,8 +459,8 @@ public:
   // nsIDOMCSSRule interface
   NS_DECL_NSIDOMCSSRULE
 
-  // nsIDOMMozCSSKeyframesRule interface
-  NS_DECL_NSIDOMMOZCSSKEYFRAMESRULE
+  // nsIDOMCSSKeyframesRule interface
+  NS_DECL_NSIDOMCSSKEYFRAMESRULE
 
   // rest of GroupRule
   virtual bool UseForPresentation(nsPresContext* aPresContext,