Add cookie manager to keep certain cookies

Is there a way to protect cookies in Linux as it is possible to do in Windows via CCleaner? if I set some the cookie files to read only would this prevent their loss? Other wise my current option is to keep hundreds of unwanted cookies that track me, and if I delete them all, I end up loosing some important login info.

(I only clean Firefox as a user, even though it appears on both the user and admin versions)

One very important feature of a wiper tool like BleachBit is a function which let me define which cookies should be kept and which should be wiped.

This feature is currently not available in BleachBit.

Could you add this?

Peter