DO NOT REMOVE THE WHITE CLIP FROM THE FUEL LINE!!!!!!!
Yes, on older Fords with the fingernail clip that's what you did, but not on these. If you do that you run the chance of breaking the clip. Fortunately, Wix filters come with the new clips. I have a collection of clips because you don't need to break them by removing them. Unfortunately, people are slow to change. I've been on this site for 6 years now, and people are still breaking the clips. Back before fuel filter makers starting putting the new style clips in the box- it was really a problem. Ford didn't sell the clips separately because if you do it correctly- the clips don't break.
Are you ready to know how to do it correctly?
It's easy, press on the flat white side of the clip with your thumb. You basically end up crushing the end of the line- but it's made to do that. Pull and remove. It's that easy.
Repeat after me- press on the flat white part of the clip with your thumb, and pull. You will hear a click when the clip is released.
Now one of those clips is turned around so you can't get your thumb on it. It's the input side of the fuel filter. Trace the line going back to the fuel tank, and you'll see Ford put a short section of line- like 6" long- with the clip at the end of that facing where you can easily reach it. Remove that line. Once you have the fuel filter and bracket off the vehicle, you can easily remove the short section of line.
Did everyone get that- don't remove the clip. Press on the flat white side, and it will release. Put your fuel line clips somewhere in your tool box. Some day you might need one. I have not needed one in 6 fuel filter changes. I'm sorry if I was a bit rude, but it's a pet peeve. Maybe there's a manual out there that is telling people to do this, but if so- get a Helms manual.