We are still actively working on the spam issue.
Nightly: Automatic builds of Firefox every day. Bleeding edge features, but stuff can break. Don't go asking /g/ if something is broken when you're using Nightly. It's probably because you're using Nightly.
- Additional Filters. You probably want Easylist, EasyPrivacy, Fanboy's Annoyances, and Malware Domains.
- ViewTube - Replaces flash video players with HTML5.
- ViewTubePlus ViewTube for porn.