In the past I used either Firefox or Chrome and sometimes was running both, but over the past few months I've only used chrome. When I used both I noticed when I opened task manager that each browser started to gobble RAM. So I started monitoring when using just one or the other and I found that Chrome was using less memory. There are some slight display differences and I think that Firefox is better on mobiles than Chrome from that perspective. However, since i prefer to visit the site on my desktop, chrome it is. My desktop is over ten years old and uses an AMD phenom chip with four cores. It upgraded to Windows 10 pro 32 bit which I've been running since Win 10 came out. My internet is fairly fast and on Speedtest just now showed 76 Mbps on this desktop with five other devices connected including tablets and smart phones. Accordingly, I don't have any problems with speed of pages loading or even with uploading info to the site. Actually, this site works very well compared to many sites on the net in my twenty-five plus year experience on the internet.