I think it is good, if for no other reason, than it gives a Mozilla a large project they can use to test how well the browser, dev-tools, etc. perform with a la

I think it is good, if for no other reason, than it gives a Mozilla a large project they can use to test how well the browser, dev-tools, etc. perform with a large complex web application. I think one reason why the chrome dev-tools is better than the firefox dev-tools is that they have a lot of other projects where developers need to make heavy use of the dev-tools for large complex web appjs.