changes in Firefox are not kept

[Huub]

Ok, must be some rights issue. When I start it as root, it works ok.
It went very wrong again. Now I checked all permissions in 
. mozilla/firefox/*.defaults, compared them with another computer, and 
corrected/changed where different: a lot of files missed the 
w-permission. Now it works ok. I want to advise strongly that the 
permissions are corrected in the upcoming 1.8 release of DF.