diff --git a/.gitignore b/.gitignore
index e9ef3a2..621ea6d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,9 +1,12 @@
 .vscode/*
 
+# Key for embedding
+key.json
+
 # NPM things
 package.json
 package-lock.json
 node_modules/
 
 # Yarn things
-yarn.lock
\ No newline at end of file
+yarn.lock
diff --git a/index.html b/index.html
index 852619c..e091f19 100644
--- a/index.html
+++ b/index.html
@@ -299,7 +299,7 @@
 					<button id="settings-btn-close" class="close"></button>
 				</div>
 				<div class="ui separator"></div>
-				<iframe id="page-overlay" src="/pages/configuration.html"></iframe>
+				<iframe id="page-overlay" src="pages/configuration.html"></iframe>
 			</div>
 		</div>
 
@@ -345,5 +345,8 @@
 			src="js/initalize/debug.populate.js"
 			type="text/javascript"></script>
 		<script src="js/initalize/ui.populate.js" type="text/javascript"></script>
+
+		<!-- Deals with webui communication -->
+		<script src="js/webui.js" type="text/javascript"></script>
 	</body>
 </html>
diff --git a/js/index.js b/js/index.js
index 085cb31..b328b14 100644
--- a/js/index.js
+++ b/js/index.js
@@ -1,6 +1,86 @@
 //TODO FIND OUT WHY I HAVE TO RESIZE A TEXTBOX AND THEN START USING IT TO AVOID THE 1px WHITE LINE ON LEFT EDGES DURING IMG2IMG
 //...lmao did setting min width 200 on info div fix that accidentally?  once the canvas is infinite and the menu bar is hideable it'll probably be a problem again
 
+/**
+ * Workaround for Firefox bug #733698
+ *
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=733698
+ *
+ * Workaround by https://github.com/subzey on https://gist.github.com/subzey/2030480
+ *
+ * Replaces and handles NS_ERROR_FAILURE errors triggered by 733698.
+ */
+(function () {
+	var FakeTextMetrics,
+		proto,
+		fontSetterNative,
+		measureTextNative,
+		fillTextNative,
+		strokeTextNative;
+
+	if (
+		!window.CanvasRenderingContext2D ||
+		!window.TextMetrics ||
+		!(proto = window.CanvasRenderingContext2D.prototype) ||
+		!proto.hasOwnProperty("font") ||
+		!proto.hasOwnProperty("mozTextStyle") ||
+		typeof proto.__lookupSetter__ !== "function" ||
+		!(fontSetterNative = proto.__lookupSetter__("font"))
+	) {
+		return;
+	}
+
+	proto.__defineSetter__("font", function (value) {
+		try {
+			return fontSetterNative.call(this, value);
+		} catch (e) {
+			if (e.name !== "NS_ERROR_FAILURE") {
+				throw e;
+			}
+		}
+	});
+
+	measureTextNative = proto.measureText;
+	FakeTextMetrics = function () {
+		this.width = 0;
+		this.isFake = true;
+		this.__proto__ = window.TextMetrics.prototype;
+	};
+	proto.measureText = function ($0) {
+		try {
+			return measureTextNative.apply(this, arguments);
+		} catch (e) {
+			if (e.name !== "NS_ERROR_FAILURE") {
+				throw e;
+			} else {
+				return new FakeTextMetrics();
+			}
+		}
+	};
+
+	fillTextNative = proto.fillText;
+	proto.fillText = function ($0, $1, $2, $3) {
+		try {
+			fillTextNative.apply(this, arguments);
+		} catch (e) {
+			if (e.name !== "NS_ERROR_FAILURE") {
+				throw e;
+			}
+		}
+	};
+
+	strokeTextNative = proto.strokeText;
+	proto.strokeText = function ($0, $1, $2, $3) {
+		try {
+			strokeTextNative.apply(this, arguments);
+		} catch (e) {
+			if (e.name !== "NS_ERROR_FAILURE") {
+				throw e;
+			}
+		}
+	};
+})();
+
 window.onload = startup;
 
 var stableDiffusionData = {
@@ -91,7 +171,7 @@ function startup() {
 				? hostEl.value.substring(0, hostEl.value.length - 1)
 				: hostEl.value;
 			hostEl.value = host;
-			localStorage.setItem("host", host);
+			localStorage.setItem("openoutpaint/host", host);
 			checkConnection();
 		};
 	});
@@ -112,7 +192,7 @@ function testHostConfiguration() {
 	 * Check host configuration
 	 */
 	const hostEl = document.getElementById("host");
-	hostEl.value = localStorage.getItem("host");
+	hostEl.value = localStorage.getItem("openoutpaint/host");
 
 	const requestHost = (prompt, def = "http://127.0.0.1:7860") => {
 		let value = window.prompt(prompt, def);
@@ -121,12 +201,12 @@ function testHostConfiguration() {
 		value = value.endsWith("/") ? value.substring(0, value.length - 1) : value;
 		host = value;
 		hostEl.value = host;
-		localStorage.setItem("host", host);
+		localStorage.setItem("openoutpaint/host", host);
 
 		testHostConfiguration();
 	};
 
-	const current = localStorage.getItem("host");
+	const current = localStorage.getItem("openoutpaint/host");
 	if (current) {
 		if (!current.match(/^https?:\/\/[a-z0-9][a-z0-9.]+[a-z0-9](:[0-9]+)?$/i))
 			requestHost(
@@ -507,19 +587,19 @@ function changeMaskBlur() {
 	stableDiffusionData.mask_blur = parseInt(
 		document.getElementById("maskBlur").value
 	);
-	localStorage.setItem("mask_blur", stableDiffusionData.mask_blur);
+	localStorage.setItem("openoutpaint/mask_blur", stableDiffusionData.mask_blur);
 }
 
 function changeSeed() {
 	stableDiffusionData.seed = document.getElementById("seed").value;
-	localStorage.setItem("seed", stableDiffusionData.seed);
+	localStorage.setItem("openoutpaint/seed", stableDiffusionData.seed);
 }
 
 function changeHiResFix() {
 	stableDiffusionData.enable_hr = Boolean(
 		document.getElementById("cbxHRFix").checked
 	);
-	localStorage.setItem("enable_hr", stableDiffusionData.enable_hr);
+	localStorage.setItem("openoutpaint/enable_hr", stableDiffusionData.enable_hr);
 }
 
 function changeSyncCursorSize() {
@@ -800,7 +880,10 @@ function changeStyles() {
 		});
 	}
 
-	localStorage.setItem("promptStyle", JSON.stringify(selectedString));
+	localStorage.setItem(
+		"openoutpaint/promptStyle",
+		JSON.stringify(selectedString)
+	);
 
 	// change the model
 	if (selectedString.length > 0)
@@ -821,16 +904,16 @@ async function getSamplers() {
 		}));
 
 		// Initial sampler
-		if (localStorage.getItem("sampler") != null) {
-			samplerAutoComplete.value = localStorage.getItem("sampler");
+		if (localStorage.getItem("openoutpaint/sampler") != null) {
+			samplerAutoComplete.value = localStorage.getItem("openoutpaint/sampler");
 		} else {
 			samplerAutoComplete.value = data[0].name;
-			localStorage.setItem("sampler", samplerAutoComplete.value);
+			localStorage.setItem("openoutpaint/sampler", samplerAutoComplete.value);
 		}
 
 		samplerAutoComplete.onchange.on(({value}) => {
 			stableDiffusionData.sampler_index = value;
-			localStorage.setItem("sampler", value);
+			localStorage.setItem("openoutpaint/sampler", value);
 		});
 	} catch (e) {
 		console.warn("[index] Failed to fetch samplers");
@@ -841,8 +924,8 @@ async function upscaleAndDownload() {
 	// Future improvements: some upscalers take a while to upscale, so we should show a loading bar or something, also a slider for the upscale amount
 
 	// get cropped canvas, send it to upscaler, download result
-	var upscale_factor = localStorage.getItem("upscale_x")
-		? localStorage.getItem("upscale_x")
+	var upscale_factor = localStorage.getItem("openoutpaint/upscale_x")
+		? localStorage.getItem("openoutpaint/upscale_x")
 		: 2;
 	var upscaler = upscalerAutoComplete.value;
 	var croppedCanvas = cropCanvas(
@@ -896,21 +979,23 @@ async function upscaleAndDownload() {
 function loadSettings() {
 	// set default values if not set
 	var _mask_blur =
-		localStorage.getItem("mask_blur") == null
+		localStorage.getItem("openoutpaint/mask_blur") == null
 			? 0
-			: localStorage.getItem("mask_blur");
+			: localStorage.getItem("openoutpaint/mask_blur");
 	var _seed =
-		localStorage.getItem("seed") == null ? -1 : localStorage.getItem("seed");
+		localStorage.getItem("openoutpaint/seed") == null
+			? -1
+			: localStorage.getItem("openoutpaint/seed");
 
 	let _enable_hr =
-		localStorage.getItem("enable_hr") === null
+		localStorage.getItem("openoutpaint/enable_hr") === null
 			? false
-			: localStorage.getItem("enable_hr") === "true";
+			: localStorage.getItem("openoutpaint/enable_hr") === "true";
 
 	let _sync_cursor_size =
-		localStorage.getItem("sync_cursor_size") === null
+		localStorage.getItem("openoutpaint/sync_cursor_size") === null
 			? true
-			: localStorage.getItem("sync_cursor_size") === "true";
+			: localStorage.getItem("openoutpaint/sync_cursor_size") === "true";
 
 	// set the values into the UI
 	document.getElementById("maskBlur").value = Number(_mask_blur);
diff --git a/js/initalize/layers.populate.js b/js/initalize/layers.populate.js
index 917f8ff..7346aad 100644
--- a/js/initalize/layers.populate.js
+++ b/js/initalize/layers.populate.js
@@ -3,10 +3,14 @@ const imageCollection = layers.registerCollection(
 	"image",
 	{
 		w: parseInt(
-			(localStorage && localStorage.getItem("settings.canvas-width")) || 2048
+			(localStorage &&
+				localStorage.getItem("openoutpaint/settings.canvas-width")) ||
+				2048
 		),
 		h: parseInt(
-			(localStorage && localStorage.getItem("settings.canvas-height")) || 2048
+			(localStorage &&
+				localStorage.getItem("openoutpaint/settings.canvas-height")) ||
+				2048
 		),
 	},
 	{
@@ -57,7 +61,7 @@ const uiCtx = uiCanvas.getContext("2d", {desynchronized: true});
  * Here we setup canvas dynamic scaling
  */
 (() => {
-	let expandSize = localStorage.getItem("expand-size") || 1024;
+	let expandSize = localStorage.getItem("openoutpaint/expand-size") || 1024;
 	expandSize = parseInt(expandSize, 10);
 
 	const askSize = () => {
@@ -66,7 +70,7 @@ const uiCtx = uiCanvas.getContext("2d", {desynchronized: true});
 		if (!by) return null;
 		else {
 			const len = parseInt(by, 10);
-			localStorage.setItem("expand-size", len);
+			localStorage.setItem("openoutpaint/expand-size", len);
 			expandSize = len;
 			return len;
 		}
diff --git a/js/prompt.js b/js/prompt.js
index 53ebf3e..781548e 100644
--- a/js/prompt.js
+++ b/js/prompt.js
@@ -20,8 +20,8 @@ async function getStyles() {
 		/** @type {string[]} */
 		let stored = null;
 		try {
-			stored = JSON.parse(localStorage.getItem("promptStyle"));
-			// doesn't seem to throw a syntaxerror if the localstorage item simply doesn't exist?
+			stored = JSON.parse(localStorage.getItem("openoutpaint/promptStyle"));
+			// doesn't seem to throw a syntaxerror if the localStorage item simply doesn't exist?
 			if (stored == null) stored = [];
 		} catch (e) {
 			stored = [];
@@ -40,11 +40,14 @@ async function getStyles() {
 				selected = value;
 			}
 			stableDiffusionData.styles = selected;
-			localStorage.setItem("promptStyle", JSON.stringify(selected));
+			localStorage.setItem(
+				"openoutpaint/promptStyle",
+				JSON.stringify(selected)
+			);
 		});
 
 		styleSelectElement.value = stored;
-		localStorage.setItem("promptStyle", JSON.stringify(stored));
+		localStorage.setItem("openoutpaint/promptStyle", JSON.stringify(stored));
 	} catch (e) {
 		console.warn("[index] Failed to fetch prompt styles");
 		console.warn(e);
@@ -66,18 +69,21 @@ async function getStyles() {
 	promptEl.oninput = () => {
 		stableDiffusionData.prompt = promptEl.value;
 		promptEl.title = promptEl.value;
-		localStorage.setItem("prompt", stableDiffusionData.prompt);
+		localStorage.setItem("openoutpaint/prompt", stableDiffusionData.prompt);
 	};
 
 	negativePromptEl.oninput = () => {
 		stableDiffusionData.negative_prompt = negativePromptEl.value;
 		negativePromptEl.title = negativePromptEl.value;
-		localStorage.setItem("neg_prompt", stableDiffusionData.negative_prompt);
+		localStorage.setItem(
+			"openoutpaint/neg_prompt",
+			stableDiffusionData.negative_prompt
+		);
 	};
 
 	// Load from local storage if set
-	const storedPrompt = localStorage.getItem("prompt");
-	const storedNeg = localStorage.getItem("neg_prompt");
+	const storedPrompt = localStorage.getItem("openoutpaint/prompt");
+	const storedNeg = localStorage.getItem("openoutpaint/neg_prompt");
 	const promptDefaultValue =
 		storedPrompt === null ? defaultPrompt : storedPrompt;
 	const negativePromptDefaultValue =
@@ -137,7 +143,7 @@ async function getStyles() {
 				stableDiffusionData.prompt = prompt;
 				promptEl.title = prompt;
 				promptEl.value = prompt;
-				localStorage.setItem("prompt", prompt);
+				localStorage.setItem("openoutpaint/prompt", prompt);
 			});
 			promptBtn.textContent = (samePrompt ? "= " : "") + prompt;
 
@@ -147,7 +153,7 @@ async function getStyles() {
 				stableDiffusionData.negative_prompt = negative;
 				negativePromptEl.title = negative;
 				negativePromptEl.value = negative;
-				localStorage.setItem("neg_prompt", negative);
+				localStorage.setItem("openoutpaint/neg_prompt", negative);
 			});
 			negativeBtn.textContent = (sameNegativePrompt ? "= " : "") + negative;
 
diff --git a/js/webui.js b/js/webui.js
new file mode 100644
index 0000000..9151498
--- /dev/null
+++ b/js/webui.js
@@ -0,0 +1,109 @@
+/**
+ * This file should only be actually loaded if we are in a trusted environment.
+ */
+(async () => {
+	// Check if key file exists
+	const response = await fetch("key.json");
+
+	/** @type {{host?: string, trusted?: boolean, key: string}} */
+	let data = null;
+	if (response.status === 200) {
+		data = await response.json();
+		console.info("[webui] key.json loaded successfully");
+	}
+	if (response.status !== 200 || (!data.key && !data.trusted)) {
+		console.warn(
+			"[webui] An accessible key.json file with a 'key' or 'trusted' should be provided to allow for messaging"
+		);
+		console.warn(data);
+		return;
+	}
+
+	const key = data.key;
+
+	// Check if we are running inside an iframe or embed
+	try {
+		const frame = window.frameElement;
+
+		if (frame === null) {
+			console.info("[webui] Not running inside a frame");
+		} else {
+			console.info(
+				`[webui] Window is child of '${window.parent.document.URL}'`
+			);
+			if (data.host && !window.parent.document.URL.startsWith(data.host)) {
+				console.warn(
+					`[webui] Window does not trust parent '${window.parent.document.URL}'`
+				);
+				console.warn("[webui] Will NOT setup message listeners");
+				return;
+			}
+		}
+	} catch (e) {
+		console.warn(
+			`[webui] Running in a third party iframe or embed, and blocked by CORS`
+		);
+		console.warn(e);
+		return;
+	}
+
+	if (data) {
+		let parentWindow = null;
+
+		if (!data.trusted) console.debug(`[webui] Loaded key`);
+
+		window.addEventListener("message", ({data, origin, source}) => {
+			if (!data.trusted && data.key !== key) {
+				console.warn(
+					`[webui] Message with incorrect key was received from '${origin}'`
+				);
+				console.warn(data);
+				return;
+			}
+
+			if (!parentWindow && !data.type === "openoutpaint/init") {
+				console.warn(`[webui] Communication has not been initialized`);
+			}
+
+			try {
+				switch (data.type) {
+					case "openoutpaint/init":
+						parentWindow = source;
+						console.debug(
+							`[webui] Communication with '${origin}' has been initialized`
+						);
+						break;
+					case "openoutpaint/add-resource":
+						{
+							const image = document.createElement("img");
+							image.src = data.image.dataURL;
+							image.onload = async () => {
+								await tools.stamp.state.addResource(
+									data.image.resourceName || "External Resource",
+									image
+								);
+								tools.stamp.enable();
+							};
+						}
+						break;
+					default:
+						console.warn(`[webui] Unsupported message type: ${data.type}`);
+						break;
+				}
+
+				// Send acknowledgement
+				parentWindow &&
+					parentWindow.postMessage({
+						type: "openoutpaint/ack",
+						message: data,
+					});
+			} catch (e) {
+				console.warn(
+					`[webui] Message of type '${data.type}' has invalid format`
+				);
+				console.warn(e);
+				console.warn(data);
+			}
+		});
+	}
+})();
diff --git a/pages/configuration.html b/pages/configuration.html
index 7203f32..42483db 100644
--- a/pages/configuration.html
+++ b/pages/configuration.html
@@ -4,22 +4,22 @@
 		<meta charset="utf-8" />
 		<title>openOutpaint 🐠</title>
 		<!-- CSS Variables -->
-		<link href="/css/colors.css" rel="stylesheet" />
-		<link href="/css/icons.css" rel="stylesheet" />
+		<link href="../css/colors.css" rel="stylesheet" />
+		<link href="../css/icons.css" rel="stylesheet" />
 
-		<link href="/css/index.css" rel="stylesheet" />
-		<link href="/css/layers.css" rel="stylesheet" />
+		<link href="../css/index.css" rel="stylesheet" />
+		<link href="../css/layers.css" rel="stylesheet" />
 
-		<link href="/css/ui/generic.css" rel="stylesheet" />
+		<link href="../css/ui/generic.css" rel="stylesheet" />
 
-		<link href="/css/ui/history.css" rel="stylesheet" />
-		<link href="/css/ui/layers.css" rel="stylesheet" />
-		<link href="/css/ui/toolbar.css" rel="stylesheet" />
+		<link href="../css/ui/history.css" rel="stylesheet" />
+		<link href="../css/ui/layers.css" rel="stylesheet" />
+		<link href="../css/ui/toolbar.css" rel="stylesheet" />
 
 		<!-- Tool Specific CSS -->
-		<link href="/css/ui/tool/dream.css" rel="stylesheet" />
-		<link href="/css/ui/tool/stamp.css" rel="stylesheet" />
-		<link href="/css/ui/tool/colorbrush.css" rel="stylesheet" />
+		<link href="../css/ui/tool/dream.css" rel="stylesheet" />
+		<link href="../css/ui/tool/stamp.css" rel="stylesheet" />
+		<link href="../css/ui/tool/colorbrush.css" rel="stylesheet" />
 
 		<link rel="icon" type="image/x-icon" href="favicon.ico" />
 
@@ -65,14 +65,21 @@
 			const canvasHeight = document.getElementById("canvas-height");
 
 			function writeToLocalStorage() {
-				localStorage.setItem("settings.canvas-width", canvasWidth.value);
-				localStorage.setItem("settings.canvas-height", canvasHeight.value);
+				localStorage.setItem(
+					"openoutpaint/settings.canvas-width",
+					canvasWidth.value
+				);
+				localStorage.setItem(
+					"openoutpaint/settings.canvas-height",
+					canvasHeight.value
+				);
 			}
 
 			// Loads values from local storage
-			canvasWidth.value = localStorage.getItem("settings.canvas-width") || 2048;
+			canvasWidth.value =
+				localStorage.getItem("openoutpaint/settings.canvas-width") || 2048;
 			canvasHeight.value =
-				localStorage.getItem("settings.canvas-height") || 2048;
+				localStorage.getItem("openoutpaint/settings.canvas-height") || 2048;
 
 			writeToLocalStorage();