thanks, for the answer Rated 5 out of 5 stars

i make userchrome.css and put it to chrome folder, it show the problem no more

window[sizemode="maximized"] #titlebar-content
padding: 0 3px 0 0!important;

thanks anyway :D

This review is for a previous version of the add-on (  This user has 3 previous reviews of this add-on.

Thanks very much for sharing that solution! I'll talk this over with dkgo as it likely affects multiple people.