When I started using ZimaOS with v1.5.3 I noticed different behaviour in different browsers on my macOS. Safari was the worst, some features just didn’t work. No problem to switch to other browsers of course. I have tried Chrome and Firefox. And since Chrome gave strange behaviour of the browser window with ttydbridge I have stayed with Firefox since then (all the latest versions). But since the update to ZimaOS v1.5.4 the Files app in Firefox has 2 “buttons” not working in Firefox. The Shared and the Trash button give no response at all. I swapped to Chrome…and there both buttons do work 
It left me wondering…what are the supported browsers?