XF 1.5 Trouble to load actual content at Xenforo 1.5.24 with FireFox v77 and above


Well-known member

We use Xenforo up to date Xenforo 1.5.24 with php 7.3.x and MariaDB.

Since FireFox v77 all Firefox v77 and above users have trouble to load my forums (eg. www.zetor-forum.de or www.hobby-gartenteich.de).
When they load the site, the FF v77 and above load no actual content. But when these members press F5 to reload the site then she see the correct actual content.

A more badly work around is this:
browser.cache.check_doc_frequency - change the value from 3 to 1 to load all data every time new (1) and not using the automatic (3)
But thats no real solution for us and not working in all cases as members says.

At the moment this is only with FF above v77 to see. FF v76 and older makes no trouble like this. And other browsers like Chrome, New Edge, ... load actual content as before without problems.

So any body has an idea what I can do to solve this?