I'm pretty sure competitive advantage plays a role. Looking at myself and most front-end devs I meet, we tend to use Chrome as a primary browser in part because

I'm pretty sure competitive advantage plays a role. Looking at myself and most front-end devs I meet, we tend to use Chrome as a primary browser in part because of the dev tools. In my case I remember there was a point where I preferred Chrome's dev tools over Firefox' built-in dev tools as well as Firebug, and that played a role in my use of Chrome as a primary browser. Things may have changed, but here I am still using Chrome. The downside is that I need to remind myself to properly test in Firefox and Safari and, to my shame, it has happened that I entirely forgot and the testing department ended up being that reminder. Also, Could it be that another reason for dev tools' existence might be that browser developers use it themselves?