FA chairman Greg Dyke wants to help English youngsters by persuading clubs to drop the number of non-home grown players allowed in a 25-man squad from 17 to 13.
Dyke also aims to change the definition of 'home grown' so that players only qualify if they are registered with a club three years prior to turning 18, rather than 21 as it is now.
It is believed clubs are unlikely to back the proposals, which place further restrictions on their selection of players, with Fox insisting he is not the only Premier League executive to be against the plans.
"I am not supportive of them and to be frank, I don't think I've spoken to a counterpart in the Premier League who is supportive of it," said Fox, speaking at the Sport Industry Breakfast Club.
"I don't think that system will lead to the desired outcome, I think it will lead to the direct opposite.
"If you increase the quota system the clubs now that are filled with international players will quickly have to find English players.
"They will then start quickly going to find younger English players to come through their system and those players are sitting at other clubs' academies.
"Some of our best players at 13, 14, 15, 16 will get approached because it's a lot easier to take them at that age than when they're a full-formed star.
"It would decimate the academy system and make my academy system not financially viable because all the good players walk out."
Source : PA
Source: PA