It is important to note that using a blocker is NOT theft. Furthermore, the advanced mode allows uBO to work in default-deny mode, which will cause all 3rd-party network requests to be blocked by default unless allowed by the user. uBO blocks ads through the EasyList filter syntax and extends the syntax to work with custom rules and filters.

UBO is NOT an 'ad blocker' it is a wide-spectrum content blocker.

The image shows 3rd-party scripts and frames blocked by default everywhere.įor support, questions, or help, visit /r/uBlockOrigin. After a new installation, the default behavior of uBO is to block ads, trackers, and malware sites through EasyList, EasyPrivacy, Peter Lowe's Blocklist, Online Malicious URL Blocklist, and uBO's filter lists.Ī point-and-click firewall that is configurable on a per-site basis UBO is NOT an 'ad blocker' it is a wide-spectrum content blocker for Chromium and Firefox with CPU and memory efficiency as primary features. BEWARE! uBO is (and has always been) COMPLETELY UNRELATED to the website.

Ublock origin mobile firefox