I cannot advise you on this matter. I have not even tried to create a web page in the past 6-7 yrs. As far as I know NS7.2, any late Mozilla, or its successor Seamonkey would fill the bill. There are other choices as well.
I gave up, today, after trying to get NS4.79 or 4.8 going, and failing with nauseating regularity, even using a Users profile from a friend.
If you want to use a program for creation of webpages, it is best to use something which is up-to-date. These daysmany webpages do not not work with old programs, which have, also, vulnerabilities. I lost count, but I think that there have been some 30 updates, mostly security updates, after NS7.2, and forget about NS4.x. But, they, still, work,under certain conditions.
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:184.108.40.206pre) Gecko/20070928 Firefox/220.127.116.11 Navigator/9.0RC1