Archange [1] filed a deletion request for firefox-nightly-bin [2]: firefox-nightly but automatically bumped for no reason every day. Instead, firefox-nightly should become firefox-nightly-bin, while the former name will track the proper build from source.
[1] https://aur.archlinux.org/account/Archange/ [2] https://aur.archlinux.org/pkgbase/firefox-nightly-bin/
