Opera Software ASA has released the final version of Opera 9.1 with a new anti-phishing feature called Advanced Fraud Protection.

When Opera Fraud Protection is enabled, you contact a server at Opera every time you request a Web page. HTTPS sites are checked via an encrypted channel, while IP addresses on the local intranet will never be checked. The server checks the domain name of the requested page against live whitelists compiled by GeoTrust, and blacklists compiled by GeoTrust and Phishtank. Opera’s fraud protection server downloads blacklists directly from Phishtank, and sends a query to GeoTrust.

By default, Opera Fraud protection is disabled.

Other features include:

Add your favorite search engines
Right-click on the site’s search field and select “Create search” from the menu.

Improved rich text editing
Use advanced text editing features for today’s most popular Web applications.

Download here