There is a special tool, actually theres 3 or 4 in the set.
They are made of aluminum, and are coloured for each size, blue, gold, blue etc.
Try Snap On, Mac, etc.
The tool opens like a pair of scissors, with a different size on each end. The tool slides in between the fuel filter and under that black fitting and releases an inside clip that enables the fitting to pull apart. Just make sure that it is clean under those 4 tabs as that helps the tool release that inside spring.
When you insert the tool, push it under the clip and slightly turn tool and filter oposite ways and it should seperate.
P.*. There are no white tabs on this connector.