Like most new Firefox features, the only thing I want to do with them is turn them off. Firefox 42 or 43 implemented this new search/preview/magnifying glass thing, and trying to search The Internets for a way to turn it off has not been fruitful thus far.
This link talks about Chrome as far as I can tell, and it's from 2010. The feature I'm referring to is very new.
Is there a way to turn this off? Usually there's a setting in about:config that disable the new features that they roll out.