[MichaelGG]

Dunno, read stuff like this:

https://www.grc.com/ssl/ev.htm

Which has the basic premise of "if you run a device completely controlled by your company, somehow Firefox will magically have special code integrity that IE doesn't".

[tmottabr]

What he is referring to is that you can add EV certs to IE via group policies.

So your company can make any site show the green ev bar in IE.

This cannot be done in any other browser so in firefox, chrome and everyone else a green bar means a valid ev cert from a real certificate autority.

On the other hand in IE a green bar does not mean anything because group policy can make any cert show as ev with green bar and all.

[MichaelGG]

And if you're running a device where other people have root, then you probably shouldn't be trusting binaries to display certain colours.