Why: read this.
For Firefox users with Adblock plus and NoScript:
=Adblock plus: add fansub.tv to your whitelist.
=NoScript: Advanced tab -> ABE tab:
1. Check ‘Enable ABE’
2. click USER
3. paste these lines:
CODE Site ads.adbrite.com
Accept from fansub.tv *.fansub.tv
Deny
Site...