I use a three-finger tap as a shortcut for the middle mouse click. Additionally, I have Firefox Temporary Containers installed and set its Isolation settings to activate on the middle mouse click.
When I use a mouse and its middle button, I see the click is recognized by the add-on. However, doing the same with a three-finger tap opens the link in a new tab but is not recognized by the add-on.
Is there another shortcut I can use to exactly mimic the middle mouse button?
Adding a shortcut that maps a three-finger click to the middle mouse button resolves the issue. So it looks like the difference between tap and click is causing this issue.