I thought this was covered previously, but on checking the search pages, I couldn't see anything at all to do with the IFHF.
Basically, it's similar to the IOM FHS and the abbreviations stand for
Ireland Family History Foundation.

Just recently however, there was a security breach of peoples passwords and user names which caused them all sorts of problems and they had to write to every member asking them to change their details. I checked this in case it was a hoax, but unfortunately, this is verified and for those who have an account with them, please change your details asap.
site details:
ifhf.brsgenealogy.com/index.php