diff --git a/chrome/content/zotero/fileInterface.js b/chrome/content/zotero/fileInterface.js
index 5b7bf81274..6bab8f9caa 100644
--- a/chrome/content/zotero/fileInterface.js
+++ b/chrome/content/zotero/fileInterface.js
@@ -1017,7 +1017,7 @@ var Zotero_File_Interface = new function() {
 			const arg = Components.classes["@mozilla.org/supports-string;1"]
 				.createInstance(Components.interfaces.nsISupportsString);
 			arg.data = uri;
-			win = ww.openWindow(null, "chrome://zotero/content/standalone/basicViewer.xul",
+			win = ww.openWindow(null, "chrome://zotero/content/standalone/basicViewer.xhtml",
 				"basicViewer", "chrome,dialog=yes,resizable,centerscreen,menubar,scrollbars", arg);
 		}
 
diff --git a/chrome/content/zotero/preferences/preferences.js b/chrome/content/zotero/preferences/preferences.js
index d66793ab06..1aebb6db1d 100644
--- a/chrome/content/zotero/preferences/preferences.js
+++ b/chrome/content/zotero/preferences/preferences.js
@@ -141,7 +141,7 @@ var Zotero_Preferences = {
 			if(win) {
 				win.loadURI(uri);
 			} else {
-				window.openDialog("chrome://zotero/content/standalone/basicViewer.xul",
+				window.openDialog("chrome://zotero/content/standalone/basicViewer.xhtml",
 					"basicViewer", "chrome,resizable,centerscreen,menubar,scrollbars", uri);
 			}
 		} else {
diff --git a/chrome/content/zotero/standalone/basicViewer.js b/chrome/content/zotero/standalone/basicViewer.js
index f3ff1cdcf4..e0381f3a9d 100644
--- a/chrome/content/zotero/standalone/basicViewer.js
+++ b/chrome/content/zotero/standalone/basicViewer.js
@@ -23,28 +23,44 @@
     ***** END LICENSE BLOCK *****
 */
 
-var browser;
-function loadURI() {
-	browser.loadURI.apply(browser, arguments);
-}
+/*const { E10SUtils } = ChromeUtils.import(
+	"resource://gre/modules/E10SUtils.jsm"
+);*/
 
-window.addEventListener("load", function() {
-	browser = document.getElementById('my-browser');
+var browser;
+
+window.addEventListener("load", /*async */function() {
+	browser = document.querySelector('browser');
+	
+	/*
+	browser.setAttribute("remote", "true");
+	//browser.setAttribute("remoteType", E10SUtils.EXTENSION_REMOTE_TYPE);
+	
+	await new Promise((resolve) => {
+		browser.addEventListener("XULFrameLoaderCreated", () => resolve());
+	});
+	*/
+	
+	/*browser.messageManager.loadFrameScript(
+		'chrome://zotero/content/standalone/basicViewerContent.js',
+		false
+	);*/
+	//browser.docShellIsActive = false;
 	
 	// align page title with title of shown document
 	browser.addEventListener("pageshow", function() {
-		document.title = (browser.contentDocument.title
-			? browser.contentDocument.title
-			: browser.contentDocument.location.href);
+		document.title = browser.contentDocument.title || browser.contentDocument.location.href;
 	}, false);
 	
-	// show document
-	browser.loadURI.apply(browser, window.arguments);
+	// Load URI passed in as nsISupports .data via openWindow()
+	browser.loadURI(
+		window.arguments[0],
+		{
+			triggeringPrincipal: Services.scriptSecurityManager.getSystemPrincipal(),
+			//loadFlags: Ci.nsIWebNavigation.LOAD_FLAGS_STOP_CONTENT,
+		}
+	);
 	
-	// XXX Why is this necessary to make the scroll bars appear?
-	window.setTimeout(function() {
-		document.getElementById("my-browser").style.overflow = "auto";
-	}, 0);
 }, false);
 
 window.addEventListener("keypress", function (event) {
diff --git a/chrome/content/zotero/standalone/basicViewer.xul b/chrome/content/zotero/standalone/basicViewer.xhtml
similarity index 84%
rename from chrome/content/zotero/standalone/basicViewer.xul
rename to chrome/content/zotero/standalone/basicViewer.xhtml
index 91b458aa83..df48975e6b 100644
--- a/chrome/content/zotero/standalone/basicViewer.xul
+++ b/chrome/content/zotero/standalone/basicViewer.xhtml
@@ -33,7 +33,7 @@
 
 <!DOCTYPE window [
 	<!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd"> %globalDTD;
-	<!ENTITY % textcontextDTD SYSTEM "chrome://global/locale/textcontext.dtd" > %textcontextDTD;
+	<!--<!ENTITY % textcontextDTD SYSTEM "chrome://global/locale/textcontext.dtd" > %textcontextDTD;-->
 	<!ENTITY % standaloneDTD SYSTEM "chrome://zotero/locale/standalone.dtd" > %standaloneDTD;
 	<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" > %brandDTD;
 	<!ENTITY % zoteroDTD SYSTEM "chrome://zotero/locale/zotero.dtd"> %zoteroDTD;
@@ -46,12 +46,23 @@
 				title="&brandShortName;"
 				width="1000" height="700"
 				persist="screenX screenY width height sizemode">
-	<script type="application/javascript" src="chrome://global/content/globalOverlay.js"/>
-	<script type="application/javascript" src="chrome://global/content/contentAreaUtils.js"/>
-	<script type="application/javascript" src="chrome://global/content/printUtils.js"/>
-	<script type="application/javascript" src="chrome://global/content/inlineSpellCheckUI.js"/>
-	<script type="application/javascript" src="chrome://zotero/content/include.js"/>
-	<script type="application/javascript" src="basicViewer.js"/>
+	
+	<script>
+		var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+		
+		Services.scriptloader.loadSubScript("chrome://zotero/content/include.js", this);
+		
+		// Mozilla scripts
+		Services.scriptloader.loadSubScript("chrome://global/content/globalOverlay.js", this);
+		Services.scriptloader.loadSubScript("chrome://global/content/editMenuOverlay.js", this);
+		Services.scriptloader.loadSubScript("chrome://global/content/contentAreaUtils.js", this);
+		Services.scriptloader.loadSubScript("chrome://global/content/printUtils.js", this);
+		if (Zotero.isMac) {
+			Services.scriptloader.loadSubScript("chrome://global/content/macWindowMenu.js", this);
+		}
+		
+		Services.scriptloader.loadSubScript("chrome://zotero/content/standalone/basicViewer.js", this);
+	</script>
 	
 	<commandset id="mainCommandSet">
 		<!--FILE-->
@@ -73,7 +84,7 @@
 	</keyset>
 	<keyset id="editMenuKeys"/>
 	
-	<popup id="contentAreaContextMenu">
+	<!--<popup id="contentAreaContextMenu">
 		<menuitem id="context-undo"
 				label="&undoCmd.label;"
 				accesskey="&undoCmd.accesskey;"
@@ -100,7 +111,7 @@
 				label="&selectAllCmd.label;"
 				accesskey="&selectAllCmd.accesskey;"
 				command="cmd_selectAll"/>
-	</popup>
+	</popup>-->
 	<toolbox id="navigator-toolbox" class="toolbox-top" mode="icons" defaultmode="icons">
 		<!-- Menu -->
 		<toolbar type="menubar" id="toolbar-menubar" class="chromeclass-menubar" customizable="true"
@@ -155,7 +166,11 @@
 	
 	<hbox flex="1" id="browser">
 		<vbox id="appcontent" flex="1">
-			<browser id="my-browser" type="content" flex="1"/>
+			<browser
+					type="content"
+					flex="1"
+					remote="false"
+					disableglobalhistory="true"/>
 		</vbox>
 	</hbox>
 </window>
diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index 6ec0593023..be41816dff 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -1109,7 +1109,7 @@ Services.scriptloader.loadSubScript("resource://zotero/polyfill.js");
 			let arg = Components.classes["@mozilla.org/supports-string;1"]
 				.createInstance(Components.interfaces.nsISupportsString);
 			arg.data = uri;
-			win = ww.openWindow(null, "chrome://zotero/content/standalone/basicViewer.xul",
+			win = ww.openWindow(null, "chrome://zotero/content/standalone/basicViewer.xhtml",
 				"basicViewer", "chrome,dialog=yes,resizable,centerscreen,menubar,scrollbars", arg);
 		}
 		if (onLoad) {