diff --git a/chrome/content/zotero-platform/unix/zotero.css b/chrome/content/zotero-platform/unix/zotero.css
new file mode 100644
index 0000000000..159529b0c7
--- /dev/null
+++ b/chrome/content/zotero-platform/unix/zotero.css
@@ -0,0 +1,8 @@
+#zotero-feed-settings dropmarker{
+	width: 20px;
+	margin-left: 5px;
+}
+
+#zotero-feed-settings .html-input {
+	padding: 2px 2px 3px;
+}
diff --git a/chrome/content/zotero/feedSettings.js b/chrome/content/zotero/feedSettings.js
index 9261049c74..6b223d638f 100644
--- a/chrome/content/zotero/feedSettings.js
+++ b/chrome/content/zotero/feedSettings.js
@@ -150,9 +150,12 @@ var Zotero_Feed_Settings = new function() {
 	this.accept = function() {
 		data.url = document.getElementById('feed-url').value;
 		data.title = document.getElementById('feed-title').value;
-		data.ttl = document.getElementById('feed-ttl').value * 60;
-		data.cleanupReadAfter = document.getElementById('feed-cleanupReadAfter').value * 1;
-		data.cleanupUnreadAfter = document.getElementById('feed-cleanupUnreadAfter').value * 1;
+		data.ttl = parseInt(document.getElementById('feed-ttl').value);
+		data.ttl = (isNaN(data.ttl) ? Zotero.Prefs.get('feeds.defaultTTL') : data.ttl) * 60;
+		data.cleanupReadAfter = parseInt(document.getElementById('feed-cleanupReadAfter').value);
+		data.cleanupReadAfter = isNaN(data.cleanupReadAfter) ? Zotero.Prefs.get('feeds.defaultCleanupReadAfter') : data.cleanupReadAfter;
+		data.cleanupUnreadAfter = parseInt(document.getElementById('feed-cleanupUnreadAfter').value);
+		data.cleanupUnreadAfter = isNaN(data.cleanupUnreadAfter) ? Zotero.Prefs.get('feeds.defaultCleanupUnreadAfter') : data.cleanupUnreadAfter;
 		return true;
 	};
 	
diff --git a/chrome/content/zotero/feedSettings.xul b/chrome/content/zotero/feedSettings.xul
index 3db65d8a4d..27a8ab36ed 100644
--- a/chrome/content/zotero/feedSettings.xul
+++ b/chrome/content/zotero/feedSettings.xul
@@ -6,6 +6,7 @@
 	<!ENTITY % zoteroDTD SYSTEM "chrome://zotero/locale/zotero.dtd" > %zoteroDTD;
 ]>
 <dialog xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+	xmlns:html="http://www.w3.org/1999/xhtml"
 	title="&zotero.feedSettings.title;" buttons="cancel,accept"
 	buttonlabelaccept="&zotero.feedSettings.saveButton.label;"
 	ondialogaccept="return Zotero_Feed_Settings.accept()"
@@ -50,17 +51,17 @@
 		<vbox id="advanced-options-togglable">
 			<hbox align="center">
 				<label value="&zotero.feedSettings.refresh.label1;" control="feed-ttl"/>
-				<textbox id="feed-ttl" type="number" min="1" increment="1" size="3"/>
+				<html:input class="html-input" id="feed-ttl" type="number" min="1" step="1"/>
 				<label value="&zotero.feedSettings.refresh.label2;" control="feed-ttl"/>
 			</hbox>
 			<hbox align="center">
 				<label value="&zotero.feedSettings.cleanupReadAfter.label1;" control="feed-cleanupReadAfter"/>
-				<textbox id="feed-cleanupReadAfter" type="number" min="1" increment="1" size="2"/>
+				<html:input class="html-input" id="feed-cleanupReadAfter" type="number" min="1" step="1"/>
 				<label value="&zotero.feedSettings.cleanupReadAfter.label2;" control="feed-cleanupReadAfter"/>
 			</hbox>
 			<hbox align="center">
 				<label value="&zotero.feedSettings.cleanupUnreadAfter.label1;" control="feed-cleanupUnreadAfter"/>
-				<textbox id="feed-cleanupUnreadAfter" type="number" min="1" increment="1" size="2"/>
+				<html:input class="html-input" id="feed-cleanupUnreadAfter" type="number" min="1" step="1"/>
 				<label value="&zotero.feedSettings.cleanupUnreadAfter.label2;" control="feed-cleanupUnreadAfter"/>
 			</hbox>
 		</vbox>
diff --git a/chrome/skin/default/zotero/zotero.css b/chrome/skin/default/zotero/zotero.css
index c4de96c7ed..38344fc8fd 100644
--- a/chrome/skin/default/zotero/zotero.css
+++ b/chrome/skin/default/zotero/zotero.css
@@ -333,6 +333,16 @@ zoterosearch .menulist-icon {
 	-moz-box-pack: end;
 }
 
+#zotero-feed-settings .html-input {
+	width: 50px;
+	text-align: right;
+}
+
+#zotero-feed-settings #advanced-options-togglable hbox {
+	display: flex;
+	align-items: center;
+}
+
 .zotero-spinner-14 {
 	list-style-image: url(chrome://zotero/skin/spinner-14px.png);
 	height: 14px;