migrev [1] filed a request to merge tor-browser-es [2] into tor- browser-es-es [3]:

Both packages install the same software, and tor-browser-es-es reflects better the locale and, also, is better maintained, as his maintainer is also keeping many of the other tor-browser-* packages.

[1] https://aur.archlinux.org/account/migrev/ [2] https://aur.archlinux.org/pkgbase/tor-browser-es/ [3] https://aur.archlinux.org/pkgbase/tor-browser-es-es/