Is football betting legal?

is having a football betting account legal in indonesia?

Legal, no, does it happen?...yes.

Some people do.
Some of them go to gaol.

from what i know, almost all kinds of betting was illegal indonesia.

Make that, all types of betting are illegal in Indonesia".
You, if nabbed, can end up behind bars.

There is one “exception” Pak Fred, that being cock fighting on Bali.  While not considered “legal” under the law, it is overlooked by the police so long as it's associated with a temple ceremony. 

There might be hope for gamblers in the future as discussions continue about the possibility of making Nusa Penida, Bali into a casino haven.  The thinking is along the lines of “why let Macao and Singapore rake in all the cash?”