Delete image layers for WinXP Rated 5 out of 5 stars
If you want to delete the image layers, you can erase the files from:
C:\Documents and Settings\\Datos de programa\Mozilla\Firefox\Profiles\\extensions\firstname.lastname@example.org\chrome\pixelperfect\content\user_overlays. Inside of that folder there must be the image files. Just erase the content of the folder ... and that's it!