ProCon is a FREE content filter for the Firefox browser. It can filter any kind of material (pornography, gambling, cracking, etc...), it can also block all traffic, making sure that only desired websites (set in the Whitelist) can be accessed, and includes a profanity filter, all *like* a parental control filter.
ProCon also has password protection in order to keep *others* from changing the settings.
- From the Mozilla add-on page.
DISCLAIMER OF WARRANTY:
ProCon Latte comes with absolutely no warranty!