this is a scrip restore the ability to show youtube full description if. because youtube try to force us to use the new layout by breaking the old layout. there are two other scripts that do the same thing but this scrip is the most efficient. because other scrips use 2 or 3 variables but this script use only one variable and it is the shortest one
I installed 'good old youtube' addon for firefox to bring back old youtube. It works but your script doesnt. Could you update it to work with the addon?