Always the same Desktop Application gets opened
It can happen that if you use the Mozilla Firefox browser, always the same pixi desktop application gets opened when you open a random pixi desktop application out of the web application.
To solve this issue, you need to change settings in Firefox, so the correct desktop application is opened by "pixiDesktopLauncher" when you click any desktop application.
Follow these steps in this tutorial:
Click the Firefox menu
in the toolbar.
Choose "Settings".
Go to "Applications" and search for content type "pixi".
Choose "Use pixiDesktop" in the "Action" column.