fix CR-creates-a-P preference bug caused by Gecko changes, pass 2
fix CR-creates-a-P preference bug caused by Gecko changes, pass 2

therealglazou/bluegriffon,therealglazou/bluegriffon,therealglazou/bluegriffon,therealglazou/bluegriffon,therealglazou/bluegriffon,therealglazou/bluegriffon,therealglazou/bluegriffon