Overview
- Product: Orion Browser
- Version: 0.99.136.2-rc (WebKit 623.1.8.0.0)
- Build Date: (To be filled by developer)
- Operating System: macOS Version 26.0 (Build 25A354)
Description:
The side panel with tabs no longer appears automatically when hovering the mouse cursor near the edge of the browser window. This behavior represents a regression in functionality where the auto-reveal feature appears to be broken.
Steps to Reproduce
- Open Orion Browser (version 0.99.136.2-rc) on a MacBook Pro (MacBookPro16,1).
- Ensure the side panel is closed/hidden from view.
- Move the mouse cursor to the screen edge where the side panel is located (typically left or right edge).
- Hover the cursor in the edge region where the panel would normally auto-reveal.
Actual Result
The side panel fails to automatically appear upon mouse hover. The panel remains completely hidden and inaccessible via the traditional hover gesture. Users must now manually click a button or use a keyboard shortcut to open the side panel.

Expected Result
The side panel should automatically slide out and become visible when the user hovers their mouse cursor near the screen edge where the panel is located, maintaining the convenient auto-reveal functionality that was previously available.
Relevant Context
- Based on analysis of the provided GIF file, the auto-hover functionality appears to be completely non-functional
- This represents a significant usability regression as it requires additional clicks to access panel content
- The issue occurs on macOS Version 26.0 (Build 25A354)
- The problem is consistent and reproducible based on the visual evidence in the GIF
Additional Information
- Device: MacBookPro16,1
- The issue affects user workflow efficiency by removing the quick hover-to-access functionality
- No system-level accessibility settings or modifications were mentioned that would interfere with hover behaviors
Please investigate the mouse event handling and auto-reveal logic for the side panel component to restore the hover activation functionality.
macOS 26.0 Build 25A354 ; Orion RC 0.99.136.2-rc (WebKit 623.1.8.0.0)
Tahoe (26)