Well after an hour of installing missing packages and redirecting my autoconf to an older version, it finally decided to make the build.
Looks like it might take awhile, so I'm just going to leave my computer on over night and check it in the morning.
If anyone has any issues building the debug build of firefox on fedora just:
Create a .mozconfig file in the root of the mozilla branch.
download autoconf-2.13, extract it, and point the AUTOCONF variable to the extracted folder's exe in .mozonfig.
Next, add the debug option to ac_add_options to .mozconfig.
Everything else is just finding the right packages and installing them.
(Just as a little proof for class, here's it compiling)