when ad popup appears, let me add its domain to denied hosts list it would be nice if i could right click on the menu bar of an ad (some ads dont have menu bars) and it would show me a menu item that says "add this sites domain to my denied hosts list" all it needs to do is backup and edit the system32/drivers/etc/hosts file and add an entry that does a local loopback
system32/drivers/etc/hosts is writable by non-administrator users?
no, a user can't write to this file. (if installed on NTFS) -> wontfix
Since it is a very rare case that someone actually sits at a machine with very limited file access to browse the web, you could silently disable the feature in those cases. Editing the hosts file will not be a problem 99% of the remaining Mozilla users. If this is not acceptable, then there are other ways to accomplish this security feature. There could be a security zone which denies all access to a site. You really have to wonder at the lack of such a feature in IE. A feature that IE lacks is a feature that Mozilla might want to have. I really wish there was some way to add a `blocked' security zone to my browser so that sites in the blocked zone would not be opened at all. IE Content advisor won't do the job (I've tried - even going to the effort of writing my own PICS files) as it only blocks entire web pages and cannot be used to block individual page elements. Perhaps Mozilla could keep its own blocked domain (site) list in a separate file?