Chrome has invested massively in developer tools for chrome and it's shows.... I think chrome is the best software ever written. The developer tools are so powerful that it'd hard to even know the full breadth of what's in there.
Firefox offers nothing to developers over chrome, which is sad.
Firefox has multi-account containers. Having different tabs logged in to different accounts is huge for me.
Firefox allows you to have each tab open in a different container, and they don't have to be tied to anything in particular.
I can have different tabs open to the AWS console for each AWS account I use. I can also switch tabs to change between different user accounts to test interactions between users on the site I'm developing.
No. Each profile opens in a new Chrome window. You can have as many open as you'd like.
> and each one is linked to a different Google account?
No. Local profiles have always been a thing.
Chrome's implementation has better UX for privacy IMHO; it's harder to accidentally open a tab in a different profile than expected, which I do _all the time_ in Firefox. In Chrome, Cmd+T opens a new tab in the active profile. In Firefox, Cmd+T opens a new tab in the default profile.
Vimium/cVim just doesn't match up and aren't under as aggressive development. For this keyboard-focused developer, there's not a good enough reason to be on Chrome. I know I am in the minority, but it's a point nonetheless.