diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/common/tabs.js b/packages/node_modules/@node-red/editor-client/src/js/ui/common/tabs.js
index abb76e622..d9dc4b289 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/common/tabs.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/common/tabs.js
@@ -365,7 +365,10 @@ RED.tabs = (function() {
 
             var thisTabA = thisTab.find("a");
             if (options.onclick) {
-                options.onclick(tabs[thisTabA.attr('href').slice(1)]);
+                options.onclick(tabs[thisTabA.attr('href').slice(1)], evt);
+                if (evt.isDefaultPrevented() && evt.isPropagationStopped()) {
+                    return false
+                }
             }
             activateTab(thisTabA);
             if (fireSelectionChanged) {
@@ -548,6 +551,8 @@ RED.tabs = (function() {
         ul.find("li.red-ui-tab a")
             .on("mousedown", function(evt) { mousedownTab = evt.currentTarget })
             .on("mouseup",onTabClick)
+            // prevent browser-default middle-click behaviour
+            .on("auxclick", function(evt) { evt.preventDefault() })
             .on("click", function(evt) {evt.preventDefault(); })
             .on("dblclick", function(evt) {evt.stopPropagation(); evt.preventDefault(); })
 
@@ -816,6 +821,8 @@ RED.tabs = (function() {
                 }
                 link.on("mousedown", function(evt) { mousedownTab = evt.currentTarget })
                 link.on("mouseup",onTabClick);
+                // prevent browser-default middle-click behaviour
+                link.on("auxclick", function(evt) { evt.preventDefault() })
                 link.on("click", function(evt) { evt.preventDefault(); })
                 link.on("dblclick", function(evt) { evt.stopPropagation(); evt.preventDefault(); })
 
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/workspaces.js b/packages/node_modules/@node-red/editor-client/src/js/ui/workspaces.js
index b33f28aab..0d7b1da54 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/workspaces.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/workspaces.js
@@ -359,11 +359,17 @@ RED.workspaces = (function() {
                 RED.sidebar.config.refresh();
                 RED.view.focus();
             },
-            onclick: function(tab) {
-                if (tab.id !== activeWorkspace) {
-                    addToViewStack(activeWorkspace);
+            onclick: function(tab, evt) {
+                if(evt.which === 2) {
+                    evt.preventDefault();
+                    evt.stopPropagation();
+                    RED.actions.invoke("core:hide-flow", tab)
+                } else {
+                    if (tab.id !== activeWorkspace) {
+                        addToViewStack(activeWorkspace);
+                    }
+                    RED.view.focus();
                 }
-                RED.view.focus();
             },
             ondblclick: function(tab) {
                 if (tab.type != "subflow") {