diff --git a/js/src/jsapi.cpp b/js/src/jsapi.cpp
index bbecbfae0b2..99c98081255 100644
--- a/js/src/jsapi.cpp
+++ b/js/src/jsapi.cpp
@@ -1073,14 +1073,14 @@ JS_YieldRequest(JSContext *cx)
 #endif
 }
 
-JS_PUBLIC_API(jsrefcount)
+JS_PUBLIC_API(unsigned)
 JS_SuspendRequest(JSContext *cx)
 {
 #ifdef JS_THREADSAFE
     JSRuntime *rt = cx->runtime;
     JS_ASSERT(rt->onOwnerThread());
 
-    jsrefcount saveDepth = rt->requestDepth;
+    unsigned saveDepth = rt->requestDepth;
     if (!saveDepth)
         return 0;
 
@@ -1094,7 +1094,7 @@ JS_SuspendRequest(JSContext *cx)
 }
 
 JS_PUBLIC_API(void)
-JS_ResumeRequest(JSContext *cx, jsrefcount saveDepth)
+JS_ResumeRequest(JSContext *cx, unsigned saveDepth)
 {
 #ifdef JS_THREADSAFE
     JSRuntime *rt = cx->runtime;
@@ -4447,16 +4447,16 @@ JS_CheckAccess(JSContext *cx, JSObject *obj, jsid id, JSAccessMode mode,
 }
 
 #ifdef JS_THREADSAFE
-JS_PUBLIC_API(jsrefcount)
+JS_PUBLIC_API(unsigned)
 JS_HoldPrincipals(JSContext *cx, JSPrincipals *principals)
 {
     return JS_ATOMIC_INCREMENT(&principals->refcount);
 }
 
-JS_PUBLIC_API(jsrefcount)
+JS_PUBLIC_API(unsigned)
 JS_DropPrincipals(JSContext *cx, JSPrincipals *principals)
 {
-    jsrefcount rc = JS_ATOMIC_DECREMENT(&principals->refcount);
+    unsigned rc = JS_ATOMIC_DECREMENT(&principals->refcount);
     if (rc == 0)
         principals->destroy(cx, principals);
     return rc;
diff --git a/js/src/jsapi.h b/js/src/jsapi.h
index 7a9497c8315..2890ccb5abc 100644
--- a/js/src/jsapi.h
+++ b/js/src/jsapi.h
@@ -2351,11 +2351,11 @@ JS_EndRequest(JSContext *cx);
 extern JS_PUBLIC_API(void)
 JS_YieldRequest(JSContext *cx);
 
-extern JS_PUBLIC_API(jsrefcount)
+extern JS_PUBLIC_API(unsigned)
 JS_SuspendRequest(JSContext *cx);
 
 extern JS_PUBLIC_API(void)
-JS_ResumeRequest(JSContext *cx, jsrefcount saveDepth);
+JS_ResumeRequest(JSContext *cx, unsigned saveDepth);
 
 extern JS_PUBLIC_API(JSBool)
 JS_IsInRequest(JSRuntime *rt);
@@ -2396,7 +2396,7 @@ class JSAutoRequest {
 
   protected:
     JSContext *mContext;
-    jsrefcount mSaveDepth;
+    unsigned  mSaveDepth;
     JS_DECL_USE_GUARD_OBJECT_NOTIFIER
 
 #if 0
@@ -2428,7 +2428,7 @@ class JSAutoSuspendRequest {
 
   protected:
     JSContext *mContext;
-    jsrefcount mSaveDepth;
+    unsigned mSaveDepth;
     JS_DECL_USE_GUARD_OBJECT_NOTIFIER
 
 #if 0
@@ -4085,7 +4085,7 @@ struct JSPrincipals {
     char *codebase;
 
     /* Don't call "destroy"; use reference counting macros below. */
-    jsrefcount refcount;
+    unsigned refcount;
 
     void   (* destroy)(JSContext *cx, JSPrincipals *);
     JSBool (* subsume)(JSPrincipals *, JSPrincipals *);
@@ -4095,10 +4095,10 @@ struct JSPrincipals {
 #define JSPRINCIPALS_HOLD(cx, principals)   JS_HoldPrincipals(cx,principals)
 #define JSPRINCIPALS_DROP(cx, principals)   JS_DropPrincipals(cx,principals)
 
-extern JS_PUBLIC_API(jsrefcount)
+extern JS_PUBLIC_API(unsigned)
 JS_HoldPrincipals(JSContext *cx, JSPrincipals *principals);
 
-extern JS_PUBLIC_API(jsrefcount)
+extern JS_PUBLIC_API(unsigned)
 JS_DropPrincipals(JSContext *cx, JSPrincipals *principals);
 
 #else
diff --git a/js/src/jscntxt.h b/js/src/jscntxt.h
index 88cded30861..3604a2f3eed 100644
--- a/js/src/jscntxt.h
+++ b/js/src/jscntxt.h
@@ -86,7 +86,7 @@ struct JSSharpInfo {
 typedef js::HashMap<JSObject *, JSSharpInfo> JSSharpTable;
 
 struct JSSharpObjectMap {
-    jsrefcount   depth;
+    unsigned     depth;
     uint32_t     sharpgen;
     JSSharpTable table;
 
@@ -293,7 +293,7 @@ struct JSRuntime : js::RuntimeFriendFields
 
     js::RootedValueMap  gcRootsHash;
     js::GCLocks         gcLocksHash;
-    jsrefcount          gcKeepAtoms;
+    unsigned            gcKeepAtoms;
     size_t              gcBytes;
     size_t              gcMaxBytes;
     size_t              gcMaxMallocBytes;
diff --git a/js/src/jscompartment.h b/js/src/jscompartment.h
index c2d936f6ae9..fc22037a23e 100644
--- a/js/src/jscompartment.h
+++ b/js/src/jscompartment.h
@@ -270,10 +270,10 @@ struct JSCompartment
 
 #ifdef DEBUG
     /* Property metering. */
-    jsrefcount                   livePropTreeNodes;
-    jsrefcount                   totalPropTreeNodes;
-    jsrefcount                   propTreeKidsChunks;
-    jsrefcount                   liveDictModeNodes;
+    unsigned                     livePropTreeNodes;
+    unsigned                     totalPropTreeNodes;
+    unsigned                     propTreeKidsChunks;
+    unsigned                     liveDictModeNodes;
 #endif
 
     /* Set of all unowned base shapes in the compartment. */
diff --git a/js/src/jspubtd.h b/js/src/jspubtd.h
index 1731a805280..d2d5d7ddc8d 100644
--- a/js/src/jspubtd.h
+++ b/js/src/jspubtd.h
@@ -96,7 +96,6 @@ JS_BEGIN_EXTERN_C
 /* Scalar typedefs. */
 typedef int32_t   jsint;
 typedef uint32_t  jsuint;
-typedef int32_t   jsrefcount;   /* PRInt32 if JS_THREADSAFE, see jslock.h */
 
 #ifdef WIN32
 typedef wchar_t   jschar;
diff --git a/js/src/shell/js.cpp b/js/src/shell/js.cpp
index de09da7fc3e..1de2ec70ba5 100644
--- a/js/src/shell/js.cpp
+++ b/js/src/shell/js.cpp
@@ -1619,7 +1619,7 @@ CountHeap(JSContext *cx, unsigned argc, jsval *vp)
     return JS_NewNumberValue(cx, (double) counter, vp);
 }
 
-static jsrefcount finalizeCount = 0;
+static unsigned finalizeCount = 0;
 
 static void
 finalize_counter_finalize(JSContext *cx, JSObject *obj)
diff --git a/js/xpconnect/src/xpcprivate.h b/js/xpconnect/src/xpcprivate.h
index 9bbee84440a..76a9d11a0d8 100644
--- a/js/xpconnect/src/xpcprivate.h
+++ b/js/xpconnect/src/xpcprivate.h
@@ -3586,7 +3586,7 @@ struct XPCJSContextInfo {
     bool savedFrameChain;
 
     // Greater than 0 if a request was suspended.
-    jsrefcount suspendDepth;
+    unsigned suspendDepth;
 };
 
 class XPCJSContextStack