diff --git a/resource/require.js b/resource/require.js
index b944d2a398..85b4784e06 100644
--- a/resource/require.js
+++ b/resource/require.js
@@ -6,6 +6,56 @@ var require = (function() {
 	var { Loader, Require, Module } = Components.utils.import('resource://gre/modules/commonjs/toolkit/loader.js');
 	var requirer = Module('/', '/');
 	var _runningTimers = {};
+	var window = {};
+
+	window.setTimeout = function (func, ms) {
+		var id = Math.floor(Math.random() * (1000000000000 - 1)) + 1
+		var useMethodjit = Components.utils.methodjit;
+		var timer = Components.classes["@mozilla.org/timer;1"]
+			.createInstance(Components.interfaces.nsITimer);
+		timer.initWithCallback({"notify":function() {
+			// Remove timer from object so it can be garbage collected
+			delete _runningTimers[id];
+			
+			// Execute callback function
+			try {
+				func();
+			} catch(err) {
+				// Rethrow errors that occur so that they appear in the error
+				// console with the appropriate name and line numbers. While the
+				// the errors appear without this, the line numbers get eaten.
+				var scriptError = Components.classes["@mozilla.org/scripterror;1"]
+					.createInstance(Components.interfaces.nsIScriptError);
+				scriptError.init(
+					err.message || err.toString(),
+					err.fileName || err.filename || null,
+					null,
+					err.lineNumber || null,
+					null,
+					scriptError.errorFlag,
+					'component javascript'
+				);
+				Components.classes["@mozilla.org/consoleservice;1"]
+					.getService(Components.interfaces.nsIConsoleService)
+					.logMessage(scriptError);
+				typeof Zotero !== 'undefined' && Zotero.debug(err.stack, 1);
+			}
+		}}, ms, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+		_runningTimers[id] = timer;
+		return id;
+	};
+	
+	window.clearTimeout = function (id) {
+		var timer = _runningTimers[id];
+		if (timer) {
+			timer.cancel();
+		}
+		delete _runningTimers[id];
+	};
+
+	window.debug = function (msg) {
+		dump(msg + "\n\n");
+	};
 
 	var loader = Loader({
 		id: 'zotero/require',
@@ -17,6 +67,8 @@ var require = (function() {
 			console: typeof console !== 'undefined' && console || {},
 			navigator: typeof navigator !== 'undefined' && navigator || {},
 			window,
+			setTimeout: window.setTimeout,
+			clearTimeout: window.clearTimeout,
 			Zotero: typeof Zotero !== 'undefined' && Zotero || {} 
 		}
 	});