I am not sure you can. I am not sure Solaris 10 is open source software and maybe it limits what you are able to install, but that and install methods are between you and Solaris & for whatever reason you had to choose Solaris. I do not think Mozilla's Firefox Linux builds are compatible with Solaris 10 because of the software dependency requirements. Also unfortunately I do not think we still host third party Solaris builds. Does any of this help * A outdated 4 year old question <br/> [/questions/931813 Is Solaris no longer a supported platform for Firefox?] * A 2 year old [/questions/976593 Can 25.0 be installed on Solaris 10?] Firefox's System Requirements * Fx 45 https://www.mozilla.org/firefox/45.0/system-requirements/ * Fx 49b https://www.mozilla.org/firefox/49.0beta/system-requirements/ There are third party builds available that may work with Solaris 10. But originated in East Asia * '''http://unixpackages.com/packages/mozilla''' Note these appear to be based on ESR builds so may be more secure than the base number such as ESR45 would suggest, but some people may be happier with distros compiled openly in other countries. * ESR FAQs https://www.mozilla.org/en-US/firefox/organizations/faq/