--- a/content/base/src/Link.h
+++ b/content/base/src/Link.h
@@ -99,16 +99,28 @@ public:
   virtual bool HasDeferredDNSPrefetchRequest() { return true; }
 
   virtual size_t
     SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf) const;
 
 protected:
   virtual ~Link();
 
+  /**
+   * Return true if the link has associated URI.
+   */
+  bool HasURI() const
+  {
+    if (mCachedURI)
+      return true;
+
+    nsCOMPtr<nsIURI> uri(GetURI());
+    return !!uri;
+  }
+
   bool HasCachedURI() const { return !!mCachedURI; }
 
 private:
   /**
    * Unregisters from History so this node no longer gets notifications about
    * changes to visitedness.
    */
   void UnregisterFromHistory();

--- a/content/html/content/src/nsHTMLAnchorElement.cpp
+++ b/content/html/content/src/nsHTMLAnchorElement.cpp
@@ -282,18 +282,17 @@ nsHTMLAnchorElement::IsHTMLFocusable(boo
 
     *aIsFocusable = false;
 
     return true;
   }
 
   if (!HasAttr(kNameSpaceID_None, nsGkAtoms::tabindex)) {
     // check whether we're actually a link
-    nsCOMPtr<nsIURI> absURI;
-    if (!IsLink(getter_AddRefs(absURI))) {
+    if (!Link::HasURI()) {
       // Not tabbable or focusable without href (bug 17605), unless
       // forced to be via presence of nonnegative tabindex attribute
       if (aTabIndex) {
         *aTabIndex = -1;
       }
 
       *aIsFocusable = false;