Waterfox 6.6.13 - Default ad blocker & search updates
Waterfox 6.6.13 - Default ad blocker & search updates
May 19, 2026
Security fixes, the built-in ad blocker now enabled by default, a new temporary default search engine, and several web compatibility improvements.
What's included:
Fixed multiple security vulnerabilities as described in Mozilla Foundation Security Advisory 2026-48.
The built-in ad blocker is now enabled by default.
Fixed tracking protection not blocking properly due to missing bundled assets.
Startpage has been removed as a search provider, with 1.org set as the temporary default.
#Waterfox Private Search is now $5/month for unmetered, ad free searches.
Internationalised domain names are now displayed as unicode instead of punycode for better legibility.
CSS dithering is now enabled, reducing colour banding on gradients.
Attempted compatibility improvements for websites such as LinkedIn.