diff --git a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
index 154ba1ffa..825fda5b1 100644
--- a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
+++ b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
@@ -578,6 +578,7 @@
     align-items: center;
     justify-content: center;
     opacity: .4;
+    align-items: center;
   }
   & #zen-essentials-container {
     justify-content: center;
diff --git a/src/browser/base/zen-components/ZenWorkspaces.mjs b/src/browser/base/zen-components/ZenWorkspaces.mjs
index 592a547c4..a564b32a4 100644
--- a/src/browser/base/zen-components/ZenWorkspaces.mjs
+++ b/src/browser/base/zen-components/ZenWorkspaces.mjs
@@ -1583,13 +1583,22 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
   }
 
   _processTabVisibility(workspaceUuid, containerId, workspaces) {
+    const hiddenTabs = [];
+    const visibleTabs = gBrowser.tabContainer.visibleTabs;
     for (const tab of gBrowser.tabs) {
       if (!this._shouldShowTab(tab, workspaceUuid, containerId, workspaces)) {
-        gBrowser.hideTab(tab, undefined, true);
+        hiddenTabs.push(tab);
       } else if (tab.hasAttribute('zen-essential')) {
         gBrowser.showTab(tab, undefined, true);
       }
     }
+    // If there's no more visible tabs, make a new tab visible
+    if (hiddenTabs.length === visibleTabs.length) {
+      this._createNewTabForWorkspace({ uuid: workspaceUuid });
+    }
+    for (const tab of hiddenTabs) {
+      gBrowser.hideTab(tab, undefined, true);
+    }
   }
 
   _shouldShowTab(tab, workspaceUuid, containerId, workspaces) {