PanelMenu item focus not removed

[vdbongard]

Describe the bug

When having multiple panel menus and clicking different items, the focus is not removed. This only happens on Firefox. On Chrome it works.

Pull Request Link

No response

Reason for not contributing a PR

• Lack of time
• Unsure how to implement the fix/feature
• Difficulty understanding the codebase
• Other

Other Reason

No response

Reproducer

https://primeng.org/panelmenu#multiple

Environment

The bug only happens in Firefox. On Chrome it works.

Angular version

19.2.0

PrimeNG version

v19

Node version

No response

Browser(s)

No response

Steps to reproduce the behavior

1. Go to the PanelMenu docs page on Firefox and open the "Multiple" section (https://primeng.org/panelmenu#multiple)
2. Click on multiple different PanelMenu items in different panel menus
3. See how multiple items stay selected (Left Firefox, Right Chrome)
   

Expected behavior

The items should not stay focused, like it is in Chrome.

[github-actions]

This issue has been automatically marked as stale due to a lack of activity. If this issue is still relevant to you, please leave a comment so we can keep it open. We apologize for not being able to prioritize it sooner. If you have any new information or questions, please share them in your comment!

[vdbongard]

The bug still exists.