Firefox mainly because it is less resource intensive. When I made the switch firefox was also the first one to offer new features (as far as I know) like ctrl+s

Firefox mainly because it is less resource intensive. When I made the switch firefox was also the first one to offer new features (as far as I know) like ctrl+shit+m to change to browser into a "responsive mode" where you could test your website on various browser widths. I haven’t used the "hello" firefox feature much at this time but I can certainly see the use for it in the future.