diff --git a/README.md b/README.md
index 0fa5959..832768b 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ Provides user with tab related stats/data
 * Memory usage displayed on panel UI (JSON or Plain)
 * Preference to include url on memory usage panel UI
 * Prepend, append or disable tab memory usage in title
+* Change tab title color if memory exceeds specified threshold
 * Preference to set interval between memory usage collection
 * Top 5 memory consumers drawn on graph
 * Graph types include: Line, Bar, Radar and PolarArea
diff --git a/addon/data/html/view.html b/addon/data/html/view.html
index cb13fd6..781345d 100644
--- a/addon/data/html/view.html
+++ b/addon/data/html/view.html
@@ -121,6 +121,14 @@ <h3 data-l10n-id="ui_title"></h3>
 								<input id="memoryUrlInUsage" type="checkbox" />
 							</td>
 						</tr>
+						<tr>
+							<td>
+								<label data-l10n-id="memoryCautionThreshold_title"></label>
+							</td>
+							<td>
+								<input id="memoryCautionThreshold" type="number" />
+							</td>
+						</tr>
 						<tr>
 							<td>
 								<label data-l10n-id="panelWidth_title"></label>
diff --git a/addon/data/js/controller.js b/addon/data/js/controller.js
index 344fdcb..54ae2b6 100644
--- a/addon/data/js/controller.js
+++ b/addon/data/js/controller.js
@@ -16,6 +16,7 @@ document.getElementById('memoryTracking').addEventListener("change", function (e
 		document.getElementById('memoryUsageOnTabTitles').disabled = false;
 		document.getElementById('memoryFormat').disabled = false;
 		document.getElementById('memoryUrlInUsage').disabled = false;
+		document.getElementById('memoryCautionThreshold').disabled = false;
 		document.getElementById('graphType').disabled = false;
 
 	} else {
@@ -25,6 +26,7 @@ document.getElementById('memoryTracking').addEventListener("change", function (e
 		document.getElementById('memoryUsageOnTabTitles').disabled = true;
 		document.getElementById('memoryFormat').disabled = true;
 		document.getElementById('memoryUrlInUsage').disabled = true;
+		document.getElementById('memoryCautionThreshold').disabled = true;
 		document.getElementById('graphType').disabled = true;
 
 		document.getElementById("memoryDump").textContent = '';
@@ -36,6 +38,15 @@ document.getElementById('schedulePreciseGC').addEventListener("click", function
 	self.port.emit("schedulePreciseGC", '');
 }, false);
 
+document.getElementById('memoryCautionThreshold').onkeyup = function (event) {
+	if (parseInt(document.getElementById('memoryCautionThreshold').value) >= 0) {
+		self.port.emit("memoryCautionThreshold", document.getElementById('memoryCautionThreshold').value);
+		document.getElementById('memoryCautionThreshold').className = 'green';
+	} else {
+		document.getElementById('memoryCautionThreshold').className = 'red';
+	}
+};
+
 tabdata_helper.inputValueChanged('panelHeight', 185);
 tabdata_helper.inputValueChanged('panelWidth', 45);
 tabdata_helper.inputValueChanged('memoryInterval', 0);
@@ -60,6 +71,7 @@ self.port.on("stats", function (stats) {
 	document.getElementById("memoryUsageOnTabTitles").value = parsedStats.memoryUsageOnTabTitles;
 	document.getElementById("memoryFormat").value = parsedStats.memoryFormat;
 	document.getElementById("memoryUrlInUsage").checked = parsedStats.memoryUrlInUsage;
+	document.getElementById("memoryCautionThreshold").value = parsedStats.memoryCautionThreshold;
 	document.getElementById("panelWidth").value = parsedStats.panelWidth;
 	document.getElementById("panelHeight").value = parsedStats.panelHeight;
 	document.getElementById("graphType").value = parsedStats.graphType;
diff --git a/addon/lib/Panel.js b/addon/lib/Panel.js
index f0fb182..aebec42 100644
--- a/addon/lib/Panel.js
+++ b/addon/lib/Panel.js
@@ -28,6 +28,7 @@ exports.init = function () {
 				memoryFormat: Preference.get("memoryFormat"),
 				memoryUsageOnTabTitles: Preference.get("memoryUsageOnTabTitles"),
 				memoryUrlInUsage: Preference.get("memoryUrlInUsage"),
+				memoryCautionThreshold: Preference.get("memoryCautionThreshold"),
 				panelWidth: Preference.get("panelWidth"),
 				panelHeight: Preference.get("panelHeight"),
 				graphType: Preference.get("graphType")
@@ -73,6 +74,10 @@ exports.init = function () {
 		Tab.updateMemoryCounters();
 	});
 
+	panel.port.on("memoryCautionThreshold", function (value) {
+		Preference.set('memoryCautionThreshold', value);
+	});
+
 	panel.port.on("schedulePreciseGC", function (value) {
 		Chrome.gc(panel);
 	});
diff --git a/addon/lib/Tab.js b/addon/lib/Tab.js
index 454a2c6..f18adee 100644
--- a/addon/lib/Tab.js
+++ b/addon/lib/Tab.js
@@ -3,6 +3,7 @@ var tabs = require("sdk/tabs"),
 	Preference = require("./Preference"),
 	Panel = require("./Panel"),
 	Chrome = require("./Chrome"),
+	WindowUtils = require("./WindowUtils"),
 	sessionCount = 0,
 	currentCount = 0,
 	markedTabs = [],
@@ -243,9 +244,14 @@ function initFinishReporting() {
 
 				if (repl.indexOf(tab.url) >= 0) {
 
-					/*if (JSON.parse(markedTabs[j]).amount >= (Preference.get('memoryCautionThreshold') * 1000000)) {
-						console.log('CAUTION! ' + tab.title + ': ' + JSON.parse(markedTabs[j]).amount);
-					}*/
+					if (JSON.parse(markedTabs[j]).amount >= (Preference.get('memoryCautionThreshold') * 1000000)) {
+
+						styleTab(repl, 'red');
+
+					} else {
+
+						styleTab(repl, '');
+					}
 
 					// format data for panel
 					memoryDump.push({
@@ -377,3 +383,25 @@ function initFinishReporting() {
 		Panel.get().port.emit("memoryDump", payload);
 	};
 }
+
+function styleTab(currentUrl, color) {
+
+	var allWindows = WindowUtils.getWindows();
+
+	for (var h = 0; h < allWindows.length; h++) { // loop all windows
+
+		if (allWindows[h].gBrowser && allWindows[h].gBrowser.tabContainer) {
+			var browserTabs = allWindows[h].gBrowser.tabContainer.childNodes;
+
+			for (var q = 0; q < browserTabs.length; q++) { // loop all tabs within window
+
+				var browser = allWindows[h].gBrowser.getBrowserForTab(browserTabs[q]);
+
+				if (currentUrl === browser.currentURI.spec) {
+
+					browserTabs[q].style.color = color;
+				}
+			}
+		}
+	}
+}
diff --git a/addon/lib/WindowUtils.js b/addon/lib/WindowUtils.js
new file mode 100644
index 0000000..9528635
--- /dev/null
+++ b/addon/lib/WindowUtils.js
@@ -0,0 +1,7 @@
+var window_utils = require('sdk/window/utils');
+
+exports.getWindows = function () {
+	return window_utils.windows(null, {
+		includePrivate: true
+	});
+};
diff --git a/addon/locale/bg.properties b/addon/locale/bg.properties
index ccf1d9f..98749bc 100644
--- a/addon/locale/bg.properties
+++ b/addon/locale/bg.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Формат на използването на паметт
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=праг Memory повишено внимание? (В мегабайти)
 showUrl_title=Show Url на използване на паметта панел?
 garbageCollection_title=Извършване на събиране на боклука
 run_title=Run
diff --git a/addon/locale/cs-CZ.properties b/addon/locale/cs-CZ.properties
index b1a3b75..99ede9f 100644
--- a/addon/locale/cs-CZ.properties
+++ b/addon/locale/cs-CZ.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Formát využití paměti na desce?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=Memory práh opatrnost? (V MB)
 showUrl_title=Zobrazit URL na využití panelu paměti?
 garbageCollection_title=Provést úklid
 run_title=Run
diff --git a/addon/locale/de-DE.properties b/addon/locale/de-DE.properties
index 90a2776..6b91678 100644
--- a/addon/locale/de-DE.properties
+++ b/addon/locale/de-DE.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Format der Speichernutzung auf Holz?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=Speicher Vorsicht Schwelle? (In MB)
 showUrl_title=Anzeige URL auf die Speichernutzung Platte?
 garbageCollection_title=Führen Sie eine Garbage Collection
 run_title=Run
diff --git a/addon/locale/en-GB.properties b/addon/locale/en-GB.properties
index de354f0..2003f4e 100644
--- a/addon/locale/en-GB.properties
+++ b/addon/locale/en-GB.properties
@@ -28,6 +28,7 @@ memoryUsageOnTabTitlesPref_options.Disable=Disable
 memoryFormat_title=Format of memory usage on panel?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
+memoryCautionThreshold_title=Memory caution threshold? (In megabytes)
 
 showUrl_title=Show Url on memory usage panel?
 garbageCollection_title=Perform a garbage collection
diff --git a/addon/locale/en-US.properties b/addon/locale/en-US.properties
index de354f0..cb50ed6 100644
--- a/addon/locale/en-US.properties
+++ b/addon/locale/en-US.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Format of memory usage on panel?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=Memory caution threshold? (In megabytes)
 showUrl_title=Show Url on memory usage panel?
 garbageCollection_title=Perform a garbage collection
 run_title=Run
diff --git a/addon/locale/es-ES.properties b/addon/locale/es-ES.properties
index c364778..05472fe 100644
--- a/addon/locale/es-ES.properties
+++ b/addon/locale/es-ES.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Formato de uso de memoria en el panel?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Llanura
 
+memoryCautionThreshold_title=umbral de precaución de memoria? (En megabytes)
 showUrl_title=Mostrar URL en el panel de uso de la memoria?
 garbageCollection_title=Realizar una recolección de basura
 run_title=Run
diff --git a/addon/locale/fr-FR.properties b/addon/locale/fr-FR.properties
index 7b8592f..8123067 100644
--- a/addon/locale/fr-FR.properties
+++ b/addon/locale/fr-FR.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Format d'utilisation de la mémoire sur le panneau?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plaine
 
+memoryCautionThreshold_title=Mémoire seuil de précaution? (En mégaoctets)
 showUrl_title=Montrer URL sur le panneau d'utilisation de la mémoire?
 garbageCollection_title=Effectuer une collecte des ordures
 run_title=Run
diff --git a/addon/locale/it-IT.properties b/addon/locale/it-IT.properties
index fa91341..466fc1a 100644
--- a/addon/locale/it-IT.properties
+++ b/addon/locale/it-IT.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Formato di utilizzo della memoria sul pannello?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=Memoria soglia prudenza? (In megabyte)
 showUrl_title=Mostra URL sul pannello di utilizzo della memoria?
 garbageCollection_title=Eseguire una garbage collection
 run_title=Run
diff --git a/addon/locale/ja-JP.properties b/addon/locale/ja-JP.properties
index 88c68e8..4293956 100644
--- a/addon/locale/ja-JP.properties
+++ b/addon/locale/ja-JP.properties
@@ -29,6 +29,7 @@ memoryFormat_title=パネル上のメモリ使用量の形式？
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=平野
 
+memoryCautionThreshold_title=メモリ注意スレッショルド？ （メガバイト単位）
 showUrl_title=のURLを表示？
 garbageCollection_title=ガベージコレクションを実行します
 run_title=ラン
diff --git a/addon/locale/ko-KR.properties b/addon/locale/ko-KR.properties
index d7b9226..4598bee 100644
--- a/addon/locale/ko-KR.properties
+++ b/addon/locale/ko-KR.properties
@@ -29,6 +29,7 @@ memoryFormat_title=패널에 메모리 사용량의 형식?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=일반
 
+memoryCautionThreshold_title=메모리주의 임계 값? (메가 바이트)
 showUrl_title=표시메모리 사용량 패널 URL?
 garbageCollection_title=가비지 수집을 수행
 run_title=실행
diff --git a/addon/locale/pl.properties b/addon/locale/pl.properties
index fccfc69..c9ce215 100644
--- a/addon/locale/pl.properties
+++ b/addon/locale/pl.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Format zużycia pamięci na panelu?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=Pamięć próg ostrożności? (W megabajtach)
 showUrl_title=Pokaż URL na pamięci panelu użytkowania?
 garbageCollection_title=Wykonaj wywóz śmieci
 run_title=Run
diff --git a/addon/locale/pt-PT.properties b/addon/locale/pt-PT.properties
index 5d02c54..be67eca 100644
--- a/addon/locale/pt-PT.properties
+++ b/addon/locale/pt-PT.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Formato de uso de memória no painel?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=limiar de cautela de memória? (Em megabytes)
 showUrl_title=Mostrar Url no painel uso de memória?
 garbageCollection_title=Executar uma coleta de lixo
 run_title=Run
diff --git a/addon/locale/ru-RU.properties b/addon/locale/ru-RU.properties
index 01ea092..ba02086 100644
--- a/addon/locale/ru-RU.properties
+++ b/addon/locale/ru-RU.properties
@@ -29,6 +29,7 @@ memoryFormat_title=формат использования памяти на п
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Обычная
 
+memoryCautionThreshold_title=порог осторожность памяти? (В мегабайтах)
 showUrl_title=Показать URL на панели использования памяти?
 garbageCollection_title=Выполните сборку мусора
 run_title=Run
diff --git a/addon/locale/sv-SE.properties b/addon/locale/sv-SE.properties
index ad0b31b..67aeb66 100644
--- a/addon/locale/sv-SE.properties
+++ b/addon/locale/sv-SE.properties
@@ -29,6 +29,7 @@ memoryFormat_title=Format för minnesanvändning på panelen?
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Plain
 
+memoryCautionThreshold_title=Minnes försiktighet tröskel? (I megabyte)
 showUrl_title=Visa Url på minnesanvändningen panel?
 garbageCollection_title=Utför en sophämtning
 run_title=Kör
diff --git a/addon/locale/uk-UA.properties b/addon/locale/uk-UA.properties
index a33b2b4..20fa1d3 100644
--- a/addon/locale/uk-UA.properties
+++ b/addon/locale/uk-UA.properties
@@ -29,6 +29,7 @@ memoryFormat_title=формат використання пам'яті на па
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=Звичайна
 
+memoryCautionThreshold_title=поріг обережність пам'яті? (В мегабайтах)
 showUrl_title=Показати URL на панелі використання пам'яті?
 garbageCollection_title=Виконайте збірку сміття
 run_title=Run
diff --git a/addon/locale/zh-CN.properties b/addon/locale/zh-CN.properties
index cee5538..cca74db 100644
--- a/addon/locale/zh-CN.properties
+++ b/addon/locale/zh-CN.properties
@@ -29,6 +29,7 @@ memoryFormat_title=內存使用的格式面板上？
 memoryFormat_options.JSON=JSON
 memoryFormat_options.Plain=平原
 
+memoryCautionThreshold_title=內存謹慎門檻？ 兆）
 showUrl_title=顯示網址內存使用面板上？
 garbageCollection_title=執行垃圾回收
 run_title=運行
diff --git a/addon/package.json b/addon/package.json
index 66be265..bb35c7f 100644
--- a/addon/package.json
+++ b/addon/package.json
@@ -51,6 +51,11 @@
 		"title": "Show Url on memory usage panel?",
 		"type": "bool",
 		"value": true
+	}, {
+		"name": "memoryCautionThreshold",
+		"title": "Memory caution threshold? (In megabytes)?",
+		"type": "string",
+		"value": "20"
 	}, {
 		"name": "panelWidth",
 		"title": "Width of Panel UI",
@@ -60,7 +65,7 @@
 		"name": "panelHeight",
 		"title": "Height of Panel UI",
 		"type": "string",
-		"value": "500"
+		"value": "525"
 	}, {
 		"name": "graphType",
 		"title": "Graph type?",