The first one i did report before. Hope someone fixes that. Not too big an issue though. The second one about the addEventListener in the Trivantis-drag.js prevents the drag and drop questions to work properly.
I did a quick test on drag-and-drop question using Firefox 62.0.3 (64 bit) and seems to work fine. Can you give us more details on how it is not working, preferably a sample title? Also, if you can include the publish options you used (such as Seamless Play, Scale content) that will be great.
Usually, “deprecated” message alone does not prevent the code from working. However, we need to look into the captureEvents calls.