muflone [1] filed a deletion request for firefox-esr52 [2]: I tried to fix this package in many ways, I've applied more and more patches, rebuilt in many was but it segfaults during the startup, even in safe mode [1] https://aur.archlinux.org/account/muflone/ [2] https://aur.archlinux.org/pkgbase/firefox-esr52/