diff --git a/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java b/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
index 9fdd9d60ae..448c3179a6 100644
--- a/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
+++ b/runelite-client/src/main/java/net/runelite/client/ui/ClientUI.java
@@ -107,6 +107,7 @@ public class ClientUI
 	private static final String CONFIG_GROUP = "runelite";
 	private static final String CONFIG_CLIENT_BOUNDS = "clientBounds";
 	private static final String CONFIG_CLIENT_MAXIMIZED = "clientMaximized";
+	private static final String CONFIG_CLIENT_SIDEBAR_CLOSED = "clientSidebarClosed";
 	private static final int CLIENT_WELL_HIDDEN_MARGIN = 160;
 	private static final int CLIENT_WELL_HIDDEN_MARGIN_TOP = 10;
 	public static final BufferedImage ICON = ImageUtil.getResourceStreamFromClass(ClientUI.class, "/runelite.png");
@@ -477,7 +478,8 @@ public class ClientUI
 			sidebarNavigationButton = NavigationButton
 				.builder()
 				.priority(100)
-				.icon(sidebarClosedIcon)
+				.icon(sidebarOpenIcon)
+				.tooltip("Open SideBar")
 				.onClick(this::toggleSidebar)
 				.build();
 
@@ -487,7 +489,12 @@ public class ClientUI
 				null);
 
 			titleToolbar.addComponent(sidebarNavigationButton, sidebarNavigationJButton);
-			toggleSidebar();
+
+			// Open sidebar if the config closed state is unset
+			if (configManager.getConfiguration(CONFIG_GROUP, CONFIG_CLIENT_SIDEBAR_CLOSED) == null)
+			{
+				toggleSidebar();
+			}
 		});
 	}
 
@@ -875,6 +882,7 @@ public class ClientUI
 		{
 			sidebarNavigationJButton.setIcon(new ImageIcon(sidebarOpenIcon));
 			sidebarNavigationJButton.setToolTipText("Open SideBar");
+			configManager.setConfiguration(CONFIG_GROUP, CONFIG_CLIENT_SIDEBAR_CLOSED, true);
 
 			contract();
 
@@ -885,6 +893,7 @@ public class ClientUI
 		{
 			sidebarNavigationJButton.setIcon(new ImageIcon(sidebarClosedIcon));
 			sidebarNavigationJButton.setToolTipText("Close SideBar");
+			configManager.unsetConfiguration(CONFIG_GROUP, CONFIG_CLIENT_SIDEBAR_CLOSED);
 
 			// Try to restore last panel
 			expand(currentNavButton);
@@ -1097,15 +1106,8 @@ public class ClientUI
 		}
 		else
 		{
-			// Try to expand sidebar
-			if (!sidebarOpen)
-			{
-				bounds.width += pluginToolbar.getWidth();
-			}
-
 			if (config.automaticResizeType() == ExpandResizeType.KEEP_GAME_SIZE)
 			{
-
 				// Try to contract plugin panel
 				if (pluginPanel != null)
 				{