What Browser Do You Use?

Chrome, almost explicitly. Although at work I "have" to use IE, but only because a couple applications our "genius" IT department made don't work in Chrome. And they also don't work in IE Tab, although they've now completely blocked extensions so even if it did work I wouldn't be able to use it...
Don't get me started on how much I hate IE...

Whenever I work on web developing though, I will test things on the mainstream browsers (Chrome, Firefox, IE & Edge, Safari and all the mobile variants) but I don't use them on a regular basis.