libgfortran47 from home:Podeiko:mozilla project
Select Your Operating System
Add repository and install manually
For openSUSE 12.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Podeiko:mozilla/openSUSE_12.1/home:Podeiko:mozilla.repo zypper refresh zypper install libgfortran47