Help with connector ASAP?

[mbinnashville]

Ok this is potentially the dumbest question ever asked on here, but I'm trying to remove the ABS control module from my '99 E320 and I cannot figure for the LIFE of me how to get the connector off without screwing it up! I've attached a photo here. I've pulled the little tab out, but now can figure out how the top piece comes off giving you access to the plugs. It seems like it would slide off forward or backwards, but this thing is on there good. I'm seriously about to lose my religion over this or just break the damn thing. Somebody offer me some guidance please!!?? Haha