Abraham (10 sacks, 6 forced fumbles) sprained his ankle in Atlanta’s meaningless regular-season finale against Tampa. He was listed as questionable and limited in practice last week.
Moore will play after missing the final four games with a hamstring injury.
Starting corner Dunta Robinson also is active despite suffering a head injury in the regular-season finale.
The Falcons' inactives are quarterback Dominique Davis, wide receiver Tim Toone, cornerback Chris Owens, guards Phillipkeith Manley and Harland Gunn, offensive tackle Lamar Holmes and defensive end Lawrence Sidbury.
Seattle’s inactives are wide reciever Deon Butler, cornerbacks DeShawn Shead and Byron Maxwell, linebacker Allen Bradford, guard Rishaw Johnson, offensive tackle Mike Person and defensive tackle Jaye Howard.
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