thanks to Mozilla the userChrome.css and userContent.css files are saved
LONG LIFE to the chrome folder and to the UI customization !

Styled+ for Firefox  is - Multieditions\Multiprofiles - Desktop\Windows all - Independent -

    the setup is optimized for the StableRelease and Beta edition but I also compiled and I provide by request the setups for the: Developer, Nightly, Portable editions, you can have the same or different Styles on multiple editions and\or profiles. Limitations: the Firefox autostart is only present in the regular setup, in the other cases start Firefox using the usual shortcuts -          

the port to other OS and\or devices will be very welcome - actually Mozilla is not officially supporting the resurrection of the chrome folder resource and will not officially approve my "add-out" (operating before the Firefox start) -

IF YOU ALREADY USED SOME PERSONAL .CSS CODES: the Operations Center (OPCEN) is organized in many separated sections and will became the base of your personal fun, you can save the changes on the fly with a mouse click , the new backup of the chrome folder will be saved in a separated subfolder of the "FFBackups" folder (the attached date and time will prevent to overwrite them)

BEST OF ALL IF YOU WAS (wanna be) A COMPLETE THEMES DEVELOPER: you can mod and replace very easily any internal image and .css code, just respect the folders tree structure and send me the chrome folder, I will compile and send you back your "new Style name.exe" ready to share with all the Firefox lovers

                                 yes all the .css codes are clearly visible, editable, sharable !