XnView Software

On Windows, you can use “customize toolbar” via --COMMAND-- to insert a program in the toolbar that opens the selection with the entered command or program. Without a selection, the program opens anyway. Although the logic is also included in the macOS version, nothing happens when you click on the corresponding entry in the toolbar. This is not a specific problem with version 1.8.8, it hasn't worked for at least 3 years (that's how long I've been using XnViewMP under macOS).

I know that you can also open images via “Open with” and that there is a separate menu for the toolbar, but I would like to use the programs via any own icons in the toolbar.

Only without selected a file, it doesnt work? which app do you configure?

Whether with or without a selected image, the app entered is not opened. It doesn't matter which app it is, none of them open. I have tried various image editors such as Acorn, the Affinity apps, but also others such as Forklift or FlowVision.

Thanks to your detailed description I can reproduce the problem.

This problem is supposed to be fixed in XnView MP 1.9.0. Please check and confirm the bug fix here.

It's working like a charm now. Thanks a lot.