Eh - it was my first time making either a Firefox or Chrome addon, so I just used the existing scaffolding for both. `cfx init` and `yo chrome-extension` might

Eh - it was my first time making either a Firefox or Chrome addon, so I just used the existing scaffolding for both. `cfx init` and `yo chrome-extension` might have been overkill but it helped me crank out two extensions in no time flat.