The FAM's move comes after Terengganu Menteri Besar Datuk Seri Ahmad Said had threatened to withdraw Terengganu and T-Team from the Super League after missing out on registering two oversees due to a confusion over original deadline dates.
FAM vice-president Datuk Hamidin Amin and general secretary Datuk Azzuddin Ahmad were, however, adamant that the decision was intended to benefit Malaysian football in general, and was not made as a result of pressure exerted by any party.
All teams can now source for new foreign players who have been free agents since December 8, with clubs even being allowed to replace previously signed imports.
"In the interest of national football, and without reference to pressure from anyone, we have decided to extend the registration deadline for foreign players to February13," Hamidin told reporters on Friday.
"However, these players are still subject to the same regulations governing foreign players as set out in the guidelines we have distributed before the December 8 (original) deadline. These players must also be approved by the vetting committee before they are allowed to play,"
Terengganu are now free to register Liberian striker Francis Doe Forkey and Brazilian midfielder Erison Da Silva Silva Santos.
Other teams who are now expected to benefit from the extension include Johor FC, PKNS, Felda United, Kuala Lumpur, Johor and Pahang.