diff --git a/content/svg/content/src/SVGTagList.h b/content/svg/content/src/SVGTagList.h
index c0014ba54d2..984f74b196d 100644
--- a/content/svg/content/src/SVGTagList.h
+++ b/content/svg/content/src/SVGTagList.h
@@ -45,6 +45,7 @@ SVG_TAG(feConvolveMatrix, FEConvolveMatrix)
 SVG_TAG(feDiffuseLighting, FEDiffuseLighting)
 SVG_TAG(feDisplacementMap, FEDisplacementMap)
 SVG_TAG(feDistantLight, FEDistantLight)
+SVG_TAG(feDropShadow, FEDropShadow)
 SVG_TAG(feFlood, FEFlood)
 SVG_TAG(feFuncA, FEFuncA)
 SVG_TAG(feFuncB, FEFuncB)
diff --git a/content/svg/content/src/moz.build b/content/svg/content/src/moz.build
index e47fbe92ee8..27109faf3aa 100644
--- a/content/svg/content/src/moz.build
+++ b/content/svg/content/src/moz.build
@@ -169,6 +169,7 @@ UNIFIED_SOURCES += [
     'SVGFEDiffuseLightingElement.cpp',
     'SVGFEDisplacementMapElement.cpp',
     'SVGFEDistantLightElement.cpp',
+    'SVGFEDropShadowElement.cpp',
     'SVGFEFloodElement.cpp',
     'SVGFEGaussianBlurElement.cpp',
     'SVGFEImageElement.cpp',
diff --git a/content/svg/content/test/test_SVG_namespace_ids.html b/content/svg/content/test/test_SVG_namespace_ids.html
index 4e3c4e47764..aa9b9f5532c 100644
--- a/content/svg/content/test/test_SVG_namespace_ids.html
+++ b/content/svg/content/test/test_SVG_namespace_ids.html
@@ -54,6 +54,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=589640
   <feDiffuseLighting id="feDiffuseLighting" />
   <feDisplacementMap id="feDisplacementMap" />
   <feDistantLight id="feDistantLight" />
+  <feDropShadow id="feDropShadow" />
   <feFlood id="feFlood" />
   <feFuncA id="feFuncA" />
   <feFuncB id="feFuncB" />
diff --git a/dom/system/gonk/tests/marionette/ril_jshint/jshint.js b/dom/system/gonk/tests/marionette/ril_jshint/jshint.js
index e9a8f177520..1acdb6c80cc 100644
--- a/dom/system/gonk/tests/marionette/ril_jshint/jshint.js
+++ b/dom/system/gonk/tests/marionette/ril_jshint/jshint.js
@@ -462,6 +462,7 @@ exports.browser = {
 	SVGFEDiffuseLightingElement: false,
 	SVGFEDisplacementMapElement: false,
 	SVGFEDistantLightElement: false,
+	SVGFEDropShadowElement: false,
 	SVGFEFloodElement    : false,
 	SVGFEFuncAElement    : false,
 	SVGFEFuncBElement    : false,
diff --git a/dom/webidl/moz.build b/dom/webidl/moz.build
index edf2f489cc3..927e2f389dd 100644
--- a/dom/webidl/moz.build
+++ b/dom/webidl/moz.build
@@ -326,6 +326,7 @@ WEBIDL_FILES = [
     'SVGFEDiffuseLightingElement.webidl',
     'SVGFEDisplacementMapElement.webidl',
     'SVGFEDistantLightElement.webidl',
+    'SVGFEDropShadowElement.webidl',
     'SVGFEFloodElement.webidl',
     'SVGFEFuncAElement.webidl',
     'SVGFEFuncBElement.webidl',
diff --git a/layout/base/nsCSSFrameConstructor.cpp b/layout/base/nsCSSFrameConstructor.cpp
index 678a0c99c2c..f7cebb3553b 100644
--- a/layout/base/nsCSSFrameConstructor.cpp
+++ b/layout/base/nsCSSFrameConstructor.cpp
@@ -4989,6 +4989,7 @@ nsCSSFrameConstructor::FindSVGData(Element* aElement,
     SIMPLE_SVG_CREATE(feConvolveMatrix, NS_NewSVGFELeafFrame),
     SIMPLE_SVG_CREATE(feDiffuseLighting, NS_NewSVGFEContainerFrame),
     SIMPLE_SVG_CREATE(feDisplacementMap, NS_NewSVGFELeafFrame),
+    SIMPLE_SVG_CREATE(feDropShadow, NS_NewSVGFELeafFrame),
     SIMPLE_SVG_CREATE(feFlood, NS_NewSVGFELeafFrame),
     SIMPLE_SVG_CREATE(feGaussianBlur, NS_NewSVGFELeafFrame),
     SIMPLE_SVG_CREATE(feImage, NS_NewSVGFEImageFrame),
diff --git a/layout/reftests/svg/filters/reftest.list b/layout/reftests/svg/filters/reftest.list
index 5692993e5d9..913b585acfc 100644
--- a/layout/reftests/svg/filters/reftest.list
+++ b/layout/reftests/svg/filters/reftest.list
@@ -86,6 +86,9 @@ fuzzy(2,500) == feDisplacementMap-colour-01.svg feDisplacementMap-colour-01-ref.
 skip-if(B2G) == feDisplacementMap-scale-01.svg pass.svg
 
 skip-if(B2G) fuzzy-if(cocoaWidget,4,184) == feDistantLight-filterRes-01.svg feDistantLight-filterRes-01-ref.svg
+
+== feDropShadow-01.svg feDropShadow-01-ref.svg pass
+
 == feGaussianBlur-alpha-01.svg feGaussianBlur-alpha-01-ref.svg
 
 == feMorphology-radius-negative-01.svg pass.svg