Request #7438 has been rejected by ArchangeGabriel [1]:
You apparently didn’t even asked the maintainer of firefox-developer
about that move. Also, firefox-developer is the correct name, if
anything it’s firefox-dev that should be merged in firefox-developer.
That being said, both packages need some fixing, and auto-updating a
VCS-like package is not a good practice, so I advise both maintainer
to take a look at
https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=firefox-
nightly-fr for instance on how to handle firefox nightly builds (from
whatever channel) in the most automatic and secure manner.
Maybe you could work together as co-maintainer of firefox-developer.
[1] https://aur.archlinux.org/account/ArchangeGabriel/