What in particular is missing in the new Start Page that you would like to have return?

Fairly straight forward to hide elements of the about:home (as it is known internally) via a userContent.css file the user can add to their Profile, but adding elements usually isn't possible, when the older elements don't exist in the Firefox code any longer.

I simply would like to use the version I am using (56.0.2) and do not like the newer version. Again can I update to a newer version and continue to use my older start up page. I appreciate revising and updating the program to keep my computer from getting a virus but do not like the newer start up page otherwise I may have to just quit using firefox as my search engine.

Lou

Then the answer is no. https://www.howtogeek.com/333805/how-to-change-or-customize-firefoxs-new-tab-page/ and https://www.howtogeek.com/333110/how-to-customize-firefox-quantum-and-remove-the-white-space-around-the-title-bar/ . https://www.howtogeek.com/334716/how-to-customize-firefoxs-user-interface-with-userchrome.css/ . https://www.userchrome.org/ . https://www.userchrome.org/what-is-userchrome-css.html . Firefox will force update to ver 57 all previous versions except : Going back : unfortunately 56.0.2 and below is no longer safe to use for every day use do to secuity issues, but 52.5.0 ESR is. It will continue to get security updates until May 2018, and you can download and install it from this page: https://www.mozilla.org/en-US/firefox/organizations/all/ Note : Legacy Extensions will be deleted or removed in any version update after May 2018.

You should make a backup of your Profile before going back and just because: https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Please let us know if this solved your issue or if need further assistance.