XUL box for %1$S element contained an inline %2$S child, forcing all its children to be wrapped in a block.  This can often be fixed by replacing “display: -moz-inline-box” with “display: -moz-inline-box; display: inline-block”.
A caixa XUL de l'elemento %1$S conteneba un fillo %2$S en linia, forzando a totz os suyos fillos a quedar achustaus  en un bloque. A ormino, isto se puede apanyar reemplazando "display: -moz-inline-box" con "display: -moz-inline-box; display: inline-block".