algent Yes, it is a new behaviour of FF. For now just remove search bar. It happens on Windows too.
I'm leery at being forced into the address bar, but I have an option to add a real search bar next to the address bar so that's what I may do, then remove the Non-functional search bar on the home page as you suggested.
Also, thanks for link, I changed Solus back to Solus!
Thanks for answering the questions straight up, appreciate your time algent .
P.S.-how does one go about finding a company's thumbnail, like Qwant, for example? Answer: at the company's branding/marketing page probably I hope.