diff --git a/src/components/sidebar/view/subcomponents/SidebarSessionItem.tsx b/src/components/sidebar/view/subcomponents/SidebarSessionItem.tsx
index c55d8ed3..bcd879af 100644
--- a/src/components/sidebar/view/subcomponents/SidebarSessionItem.tsx
+++ b/src/components/sidebar/view/subcomponents/SidebarSessionItem.tsx
@@ -2,7 +2,7 @@ import { useEffect, useRef } from 'react';
 import { Check, Edit2, Loader2, Trash2, X } from 'lucide-react';
 import type { TFunction } from 'i18next';
 
-import { Badge, Button, Tooltip } from '../../../../shared/view/ui';
+import { Badge, Tooltip, buttonVariants } from '../../../../shared/view/ui';
 import { cn } from '../../../../lib/utils';
 import type { Project, ProjectSession, LLMProvider } from '../../../../types/app';
 import type { SessionWithProvider } from '../../types/types';
@@ -195,9 +195,10 @@ export default function SidebarSessionItem({
       </div>
 
       <div className="hidden md:block">
-        <Button
-          variant="ghost"
+        <a
+          href={`/session/${session.id}`}
           className={cn(
+            buttonVariants({ variant: 'ghost' }),
             'h-auto w-full justify-start rounded-md border bg-card p-2 text-left font-normal transition-all duration-150',
             isSelected ? 'border-primary/20 bg-primary/5' : 'border-border/30',
             !isSelected && isProcessing
@@ -206,7 +207,13 @@ export default function SidebarSessionItem({
                 ? 'border-green-500/30 bg-green-50/5 hover:bg-green-50/10 dark:bg-green-900/5 dark:hover:bg-green-900/10'
                 : 'hover:bg-accent/50',
           )}
-          onClick={() => onSessionSelect(session, project.projectId)}
+          // Left-click keeps in-app navigation; Ctrl/Cmd/middle-click and the
+          // native right-click menu use the href to open a new tab/window.
+          onClick={(event) => {
+            if (event.metaKey || event.ctrlKey || event.shiftKey || event.altKey) return;
+            event.preventDefault();
+            onSessionSelect(session, project.projectId);
+          }}
         >
           <div className="flex w-full min-w-0 items-center gap-2">
             <div
@@ -249,7 +256,7 @@ export default function SidebarSessionItem({
               </div>
             </div>
           </div>
-        </Button>
+        </a>
 
         <div
           ref={editingContainerRef}