XUL box for %1$S element contained an inline %2$S child, forcing all its children to be wrapped in a block.
Boyet XUL wonande geɗel %1$S ina waɗnoo ɓiɗɗo nder gorol %2$S, baawnungol ɓiɓɓe ɓee fof soomeede e mooɓre wootere.