I just played with the latest jDownloads 3.9.8.3 in my development environment and found out, that one I uninstall it the following files remain:

/plugins/jdownloads/example_plugin_jdownloads\example_plugin_jdownloads.xml
/modules/mod_jdownloads_top\* different folders and files

Maybe this could be fixed in a future version?

Hi
Thanks for the input
How did you uninstall?  The method we advise is to uninstall the component as that should uninstall all the other parts;
Please see article
https://www.jdownloads.net/documentation-for-v3-9/getting-started-v3-9/how-to-uninstall-all-of-jdownloads-jd39

Colin