Yesterday I made a rough draft of some code to allow the use of the http://publicsuffix.org/list/ to determine which domains dillo shouldn't allow cookies to be set for: http://www.dillo.org/test/public_suffix.diff I just put it there for safekeeping for now, as I have no plans to clean it up and get it into dillo until after the next release, but it occurred to me that I should at least mention it's there for anyone who uses cookies and lives somewhere where the domain situation is complicated (e.g., Japan). A user would have to add a line to cookiesrc like public_suffix_file /path/to/list/file