🛡️ Best Ad & Content Blockers Extensions, Ranked by Safety

We score every ad & content blockers extension on publisher identity, permissions & access, data privacy, maintenance & ownership and community reputation. Every rank is backed by documented evidence — see our methodology.

AdBlock — block ads across the web leads with a safety grade of A (91.43/100), while Ghostery AdBlocker for Privacy ranks lowest (B, 70.29/100). Each rank below reflects documented evidence only — not popularity or marketing.

1. #1 AdBlock — block ads across the web 91.43/100 A
2. #2 Ad Blocker: Stands AdBlocker 91.43/100 A
3. #3 AdBlocker Ultimate 91.43/100 A
4. #4 Adblock Plus - free ad blocker 91.43/100 A
5. #5 uBlock Origin Lite 91.43/100 A
6. #6 AdGuard AdBlocker 89.62/100 A
7. #7 uBlock Origin 83.32/100 A
8. #8 Ghostery – Privacy Ad Blocker 81.7/100 A
9. #9 AdBlock for Firefox 81.48/100 A
10. #10 Adblock Plus 81.48/100 A
11. #11 Ghostery AdBlocker for Privacy 70.29/100 B