does this help solve the problem?
check ExcludeKey1
[Firefox HTML5 Storage*]
LangSecRef=3026
SpecialDetect=DET_MOZILLA
Default=False
FileKey1=%AppData%\Mozilla\Firefox\Profiles\*\storage|*.*|REMOVESELF
ExcludeKey1=PATH|%AppData%\Mozilla\Firefox\Profiles\*\storage\default\moz-extension*