hi, no german in the english forum! the program you´re asking for, is firebug for firefox web browser there you can see the source code and make some changes in realtime. But it does not change the code!!!!!!!!!!!!!!!! It is only for testing. Than you need a text editor, like Dreamweaver or Notepad: http://www.thefreecountry.com/programming/editors.shtml to change the code, therefore you use fireFTP for Firefox to download your file from your website change it with notepad and upload your changed file again. the most changes in presta, needs to be done in the global css of your theme in the theme folder sd