diff --git a/chrome/content/zotero/bindings/itembox.xml b/chrome/content/zotero/bindings/itembox.xml
index 285203fa42..68f37f8d31 100644
--- a/chrome/content/zotero/bindings/itembox.xml
+++ b/chrome/content/zotero/bindings/itembox.xml
@@ -1467,9 +1467,24 @@
 					
 					t.select();
 					
+					// Leave text field open when window loses focus
+					var ignoreBlur = function () {
+						this.ignoreBlur = true;
+					}.bind(this);
+					var unignoreBlur = function () {
+						this.ignoreBlur = false;
+					}.bind(this);
+					addEventListener("deactivate", ignoreBlur);
+					addEventListener("activate", unignoreBlur);
+					
 					t.addEventListener('blur', function () {
-						document.getBindingParent(this).blurHandler(this);
-					}, false);
+						var self = document.getBindingParent(this);
+						if (self.ignoreBlur) return;
+						
+						removeEventListener("deactivate", ignoreBlur);
+						removeEventListener("activate", unignoreBlur);
+						self.blurHandler(this);
+					});
 					t.setAttribute('onkeypress', "return document.getBindingParent(this).handleKeyPress(event)");
 					
 					this._tabDirection = false;