Can Chrome Sidebar Auto-Expand on Hover and Hide When Mouse Leaves?

Chrome browser side panel cannot implement hover-to-expand and auto-hide-on-mouse-leave functionality.

This is a browser Side Panel API limitation that extensions cannot change.

Why Can't This Be Implemented?

Chrome Side Panel API does not allow extensions to:

• •Detect if mouse is hovering at browser edge
• •Programmatically open/close the side panel
• •Implement hover expand, leave hide interactions

This is a browser architecture design limitation.

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VertiTab Web Sidebar - Supports Hover Expand

While the browser side panel doesn't support this, VertiTab's web sidebar can implement this feature!

Web Sidebar Features

• •🎯 Hover to expand: Tab bar automatically expands when mouse moves to page edge
• •🔄 Auto-hide on leave: Automatically collapses when mouse leaves
• •📐 Custom position: Can be set on left or right side of page
• •📏 Custom width: Not limited to 360px minimum width
• •⚡ Instant response: Quick tab access without clicking

How to Enable Web Sidebar

1. •Open VertiTab extension settings
2. •Find "Web Sidebar" option
3. •Enable and set trigger position and width

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Manage Tabs with VertiTab

VertiTab offers multiple usage modes to meet different needs:

• •🌳 Browser side panel: Most complete features
• •💡 Web sidebar: Supports hover expand
• •⚡ Popup window: Custom window size

👉 Install VertiTab Now