diff --git a/js/FeedStoreModel.js b/js/FeedStoreModel.js
index 7d8020871..736bfbed6 100644
--- a/js/FeedStoreModel.js
+++ b/js/FeedStoreModel.js
@@ -1,10 +1,12 @@
+/* global define, dijit */
+
 define(["dojo/_base/declare", "dijit/tree/ForestStoreModel"], function (declare) {
 
 	return declare("fox.FeedStoreModel", dijit.tree.ForestStoreModel, {
 		getItemsInCategory: function (id) {
 			if (!this.store._itemsByIdentity) return undefined;
 
-			let cat = this.store._itemsByIdentity['CAT:' + id];
+			const cat = this.store._itemsByIdentity['CAT:' + id];
 
 			if (cat && cat.items)
 				return cat.items;
@@ -18,6 +20,8 @@ define(["dojo/_base/declare", "dijit/tree/ForestStoreModel"], function (declare)
 		getFeedValue: function (feed, is_cat, key) {
 			if (!this.store._itemsByIdentity) return undefined;
 
+			let treeItem;
+
 			if (is_cat)
 				treeItem = this.store._itemsByIdentity['CAT:' + feed];
 			else
@@ -40,6 +44,8 @@ define(["dojo/_base/declare", "dijit/tree/ForestStoreModel"], function (declare)
 			if (!value) value = '';
 			if (!this.store._itemsByIdentity) return undefined;
 
+			let treeItem;
+
 			if (is_cat)
 				treeItem = this.store._itemsByIdentity['CAT:' + feed];
 			else
@@ -52,29 +58,31 @@ define(["dojo/_base/declare", "dijit/tree/ForestStoreModel"], function (declare)
 			if (!this.store._itemsByIdentity)
 				return null;
 
+			let treeItem;
+
 			if (is_cat) {
 				treeItem = this.store._itemsByIdentity['CAT:' + feed];
 			} else {
 				treeItem = this.store._itemsByIdentity['FEED:' + feed];
 			}
 
-			let items = this.store._arrayOfAllItems;
+			const items = this.store._arrayOfAllItems;
 
 			for (let i = 0; i < items.length; i++) {
 				if (items[i] == treeItem) {
 
-					for (var j = i + 1; j < items.length; j++) {
-						let unread = this.store.getValue(items[j], 'unread');
-						let id = this.store.getValue(items[j], 'id');
+					for (let j = i + 1; j < items.length; j++) {
+						const unread = this.store.getValue(items[j], 'unread');
+						const id = this.store.getValue(items[j], 'id');
 
 						if (unread > 0 && ((is_cat && id.match("CAT:")) || (!is_cat && id.match("FEED:")))) {
 							if (!is_cat || !(this.store.hasAttribute(items[j], 'parent_id') && this.store.getValue(items[j], 'parent_id') == feed)) return items[j];
 						}
 					}
 
-					for (var j = 0; j < i; j++) {
-						let unread = this.store.getValue(items[j], 'unread');
-						let id = this.store.getValue(items[j], 'id');
+					for (let j = 0; j < i; j++) {
+						const unread = this.store.getValue(items[j], 'unread');
+						const id = this.store.getValue(items[j], 'id');
 
 						if (unread > 0 && ((is_cat && id.match("CAT:")) || (!is_cat && id.match("FEED:")))) {
 							if (!is_cat || !(this.store.hasAttribute(items[j], 'parent_id') && this.store.getValue(items[j], 'parent_id') == feed)) return items[j];
diff --git a/js/FeedTree.js b/js/FeedTree.js
index ae39728bb..75a3f32a7 100755
--- a/js/FeedTree.js
+++ b/js/FeedTree.js
@@ -1,12 +1,13 @@
-/* global dojo, dijit, define, App, Feeds, CommonDialogs */
+/* eslint-disable prefer-rest-params */
+/* global __, dojo, dijit, define, App, Feeds, CommonDialogs */
 
 define(["dojo/_base/declare", "dojo/dom-construct", "dijit/Tree", "dijit/Menu"], function (declare, domConstruct) {
 
 	return declare("fox.FeedTree", dijit.Tree, {
-		_onContainerKeydown: function(/* Event */ e) {
+		_onContainerKeydown: function(/* Event */ /* e */) {
 			return; // Stop dijit.Tree from interpreting keystrokes
 		},
-		_onContainerKeypress: function(/* Event */ e) {
+		_onContainerKeypress: function(/* Event */ /* e */) {
 			return; // Stop dijit.Tree from interpreting keystrokes
 		},
 		_createTreeNode: function(args) {
@@ -48,7 +49,7 @@ define(["dojo/_base/declare", "dojo/dom-construct", "dijit/Tree", "dijit/Menu"],
 			}
 
 			if (id.match("FEED:")) {
-				let menu = new dijit.Menu();
+				const menu = new dijit.Menu();
 				menu.row_id = bare_id;
 
 				menu.addChild(new dijit.MenuItem({
@@ -77,7 +78,7 @@ define(["dojo/_base/declare", "dojo/dom-construct", "dijit/Tree", "dijit/Menu"],
 			}
 
 			if (id.match("CAT:") && bare_id >= 0) {
-				let menu = new dijit.Menu();
+				const menu = new dijit.Menu();
 				menu.row_id = bare_id;
 
 				menu.addChild(new dijit.MenuItem({
@@ -102,7 +103,7 @@ define(["dojo/_base/declare", "dojo/dom-construct", "dijit/Tree", "dijit/Menu"],
 			}
 
 			if (id.match("CAT:") && bare_id == -1) {
-				let menu = new dijit.Menu();
+				const menu = new dijit.Menu();
 				menu.row_id = bare_id;
 
 				menu.addChild(new dijit.MenuItem({
@@ -146,15 +147,16 @@ define(["dojo/_base/declare", "dojo/dom-construct", "dijit/Tree", "dijit/Menu"],
 			}
 		},
 		getTooltip: function (item) {
-			return [item.updated, item.error].filter(x => x && x != "").join(" - ");
+			return [item.updated, item.error].filter((x) => x && x != "").join(" - ");
 		},
 		getIconClass: function (item, opened) {
+			// eslint-disable-next-line no-nested-ternary
 			return (!item || this.model.mayHaveChildren(item)) ? (opened ? "dijitFolderOpened" : "dijitFolderClosed") : "feed-icon";
 		},
-		getLabelClass: function (item, opened) {
+		getLabelClass: function (item/* , opened */) {
 			return (item.unread <= 0) ? "dijitTreeLabel" : "dijitTreeLabel Unread";
 		},
-		getRowClass: function (item, opened) {
+		getRowClass: function (item/*, opened */) {
 			let rc = "dijitTreeRow";
 
 			const is_cat = String(item.id).indexOf('CAT:') != -1;
diff --git a/js/Feeds.js b/js/Feeds.js
index 9b8685a25..a12021566 100644
--- a/js/Feeds.js
+++ b/js/Feeds.js
@@ -1,6 +1,6 @@
 'use strict'
 
-/* global __, ngettext, App, Headlines, xhrPost, dojo, dijit, Form, fox, PluginHost, Notify, $$ */
+/* global __, App, Headlines, xhrPost, dojo, dijit, Form, fox, PluginHost, Notify, $$ */
 
 const	Feeds = {
 	counters_last_request: 0,