Use Orion browser in focus mode.
Install Proton Pass Extension (this problem may affect other extensions).
Utilise the menu bar by moving the cursor to the top of the display, clicking on the Proton Pass icon, and moving the cursor down to the menu as if to interact with it.
Notice how the menu quite often closes (no clicking was required to do this).
See attached video:
I would expect the visible menu to stay in place until I click outside of the menu on to the page or elsewhere.
Version 1.0.6 (145), WebKit 624.1.7 Build date April 14, 2026 MacBook Pro (macOS Tahoe 26.4.1 build 25E253)
Tahoe (26)