I wouldn't call Firefox unsafe. But Safari's sync for bookmarks, passwords, tabs, handoff... is really the killer feature. I use Firefox as my "virgin" broswse

I wouldn't call Firefox unsafe. But Safari's sync for bookmarks, passwords, tabs, handoff... is really the killer feature. I use Firefox as my "virgin" broswser for testing or when I need to manually override proxy settings for my own MitM purposes. But that's about it.