We are witnessing an issue in the latest version of FireFox (v59.0), Telerik Ajax 2018 R1, where the tile click event is not firing - issue can be replicated on the Tile demo page also:
This appears to be due to amendments to the pointer functionality mentioned in the 59.0 release notes:
"Added support for W3C specs for pointer events and improved platform integration with added device support for mouse, pen, and touch screen pointer input"
This can be proved further by modifying the about:config and setting the dom.w3c_pointer_events.enabled value to disabled and refreshing the page, after which the tiles work.
This is affecting our production environment, so a quick fix/workaround would be appreciated.