ok to start when i use the theme OpusOS i edited it so the rolup height was 18 i think so it would "save" the window position meaning when im in firefox and im half way down the page then i roll up the window then unrolll i, it will be in the same spot but now im using the new Vienna theme and i set the rollup height 10-22 and non work how can i get this to work so it will remember the window position