Share permissions not selectable, only share/unshare [Firefox 61]

If i want to share files/folders with users/groups they always get full acccess. The options for “can edit”, “can change” etc. are missing

Nextcloud 13.04

Looks like it is a Firefox related Problem. E.g. chrome displayes everything

The addon Adblock Plus prevents options to be visible in Firefox.

Whitelisting the nextcloud and reloading the page solves this issue.