FredBezies [1] filed a deletion request for lightfirefox [2]: Dead project upstream. Last version was 49.0rc back in 2016 : https://sourceforge.net/projects/lightfirefox/files/49rc/ [1] https://aur.archlinux.org/account/FredBezies/ [2] https://aur.archlinux.org/pkgbase/lightfirefox/