diff --git a/chrome/content/zotero/xpcom/ipc.js b/chrome/content/zotero/xpcom/ipc.js
index 81ffbca4d..38c6e9d5c 100755
--- a/chrome/content/zotero/xpcom/ipc.js
+++ b/chrome/content/zotero/xpcom/ipc.js
@@ -461,7 +461,12 @@ Zotero.IPC.Pipe.DeferredOpen.prototype = {
 		
 		var pump = Components.classes["@mozilla.org/network/input-stream-pump;1"].
 			createInstance(Components.interfaces.nsIInputStreamPump);
-		pump.init(fifoStream, -1, -1, 4096, 1, true);
+		try {
+			pump.init(fifoStream, 0, 0, true);
+		}
+		catch (e) {
+			pump.init(fifoStream, -1, -1, 4096, 1, true);
+		}
 		pump.asyncRead(this, null);
 		
 		this._openTime = Date.now();
diff --git a/chrome/content/zotero/xpcom/server.js b/chrome/content/zotero/xpcom/server.js
index 6bc4321ba..6b0882681 100755
--- a/chrome/content/zotero/xpcom/server.js
+++ b/chrome/content/zotero/xpcom/server.js
@@ -136,7 +136,12 @@ Zotero.Server.SocketListener = new function() {
 		var dataListener = new Zotero.Server.DataListener(iStream, oStream);
 		var pump = Components.classes["@mozilla.org/network/input-stream-pump;1"]
 							 .createInstance(Components.interfaces.nsIInputStreamPump);
-		pump.init(iStream, -1, -1, 0, 0, false);
+		try {
+			pump.init(iStream, 0, 0, false);
+		}
+		catch (e) {
+			pump.init(iStream, -1, -1, 0, 0, false);
+		}
 		pump.asyncRead(dataListener, null);
 	}
 	
diff --git a/chrome/content/zotero/xpcom/utilities_internal.js b/chrome/content/zotero/xpcom/utilities_internal.js
index f5b4385b3..4b7566ff1 100644
--- a/chrome/content/zotero/xpcom/utilities_internal.js
+++ b/chrome/content/zotero/xpcom/utilities_internal.js
@@ -254,7 +254,12 @@ Zotero.Utilities.Internal = {
 		// Send input stream to stream converter
 		var pump = Components.classes["@mozilla.org/network/input-stream-pump;1"]
 			.createInstance(Components.interfaces.nsIInputStreamPump);
-		pump.init(is, -1, -1, 0, 0, true);
+		try {
+			pump.init(is, 0, 0, true);
+		}
+		catch (e) {
+			pump.init(is, -1, -1, 0, 0, true);
+		}
 		pump.asyncRead(converter, null);
 		
 		return deferred.promise;
@@ -314,7 +319,12 @@ Zotero.Utilities.Internal = {
 		// Send input stream to stream converter
 		var pump = Components.classes["@mozilla.org/network/input-stream-pump;1"]
 			.createInstance(Components.interfaces.nsIInputStreamPump);
-		pump.init(bis, -1, -1, 0, 0, true);
+		try {
+			pump.init(bis, 0, 0, true);
+		}
+		catch (e) {
+			pump.init(bis, -1, -1, 0, 0, true);
+		}
 		pump.asyncRead(converter, null);
 		
 		return deferred.promise;
diff --git a/components/zotero-protocol-handler.js b/components/zotero-protocol-handler.js
index 49f7c22fa..624937159 100644
--- a/components/zotero-protocol-handler.js
+++ b/components/zotero-protocol-handler.js
@@ -1221,7 +1221,12 @@ AsyncChannel.prototype = {
 				//Zotero.debug("AsyncChannel: Got input stream from generator");
 				
 				var pump = Cc["@mozilla.org/network/input-stream-pump;1"].createInstance(Ci.nsIInputStreamPump);
-				pump.init(data, -1, -1, 0, 0, true);
+				try {
+					pump.init(data, 0, 0, true);
+				}
+				catch (e) {
+					pump.init(data, -1, -1, 0, 0, true);
+				}
 				pump.asyncRead(listenerWrapper, context);
 			}
 			else if (data instanceof Ci.nsIFile || data instanceof Ci.nsIURI) {