firefox-esr from home:alarrosa:branches:home:alarrosa:packages project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:alarrosa:branches:home:alarrosa:packages/openSUSE_Tumbleweed/home:alarrosa:branches:home:alarrosa:packages.repo zypper refresh zypper install firefox-esr