Для openSUSE Factory ARM запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/mozilla:Factory/openSUSE_Factory_ARM/mozilla:Factory.repo
zypper refresh
zypper install seamonkey
Для openSUSE Factory запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/mozilla:Factory/openSUSE_Factory/mozilla:Factory.repo
zypper refresh
zypper install seamonkey
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/mozilla:Factory/15.6/mozilla:Factory.repo
zypper refresh
zypper install seamonkey
Для 15.5 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/mozilla:Factory/15.5/mozilla:Factory.repo
zypper refresh
zypper install seamonkey