yes, there is a list of actions. I saw that in a facebook group.
It lasts for 2-5 days, the player becomes green again and then must do another action to be on fire again.
For example a new player is on fire for 5 days.
If the 4th day he 'll score 3 goals in one match, it's not extended. The 5th day will loose his fire.
After that if he 'll earn the 6*, he will be on fire again.