Osprey: Browser Protection

Osprey: Browser Protection is a free and open-source browser extension designed to keep you safe from online threats while you surf the web. It works automatically in the background, checking every website you visit against a comprehensive network of more than 20 threat-intelligence providers. The moment a site is flagged as dangerous, Osprey either blocks it entirely or shows you a clear warning, so you can avoid risky pages before any harm is done.

What Osprey Blocks

• Phishing and fake login pages that attempt to steal your credentials: These are often disguised as legitimate banking, email, or social media sites, and Osprey prevents you from entering your password on them.
• Malware and malicious websites: Sites that host or distribute harmful software, including viruses, ransomware, and spyware, are detected and blocked before they can infect your device.
• Scams and online fraud: Osprey identifies pages that engage in deceptive practices, such as fake giveaways, lottery scams, or fraudulent shopping sites, helping you avoid financial losses.
• Suspicious or untrustworthy sites: Even if a site isn't yet known as malicious, Osprey evaluates its reputation and warns you if it appears risky based on behavioral indicators.
• Newly registered domains: These are frequently used in attacks because they haven't gained a reputation yet; Osprey flags them to protect you from early-stage threats.

Private by Design

Osprey is built with your privacy in mind. Unlike many security tools that track your browsing history, Osprey routes all URL checks through a privacy-preserving proxy. This proxy hides your IP address from the threat-intelligence providers that perform the lookups. Because thousands of users share the same proxy, no individual provider can link a specific check back to you. Furthermore, Osprey itself keeps no logs of the websites you visit, ensuring that your browsing habits remain completely confidential.

Open-Source and Free

Osprey is fully open-source under the GPLv3 license, meaning anyone can review its code to verify exactly how it works and what it does with your data. It is a non-profit project, not a commercial venture, so there is no premium tier, no advertisements, and no hidden costs. You get robust protection without any financial commitment.

Works on Chrome, Edge, and Firefox

Osprey is compatible with all major browsers, including Chrome, Edge, and Firefox. It is lightweight and unobtrusive, running quietly in the background without slowing down your browsing experience. You won't even notice it's there until it blocks a dangerous site, at which point you'll be glad it's on your side.

Install Osprey for free, open-source safe browsing that shields you from phishing, malware, scams, and other common threats on the web. With its automatic protection and privacy-first design, Osprey gives you peace of mind as you navigate the internet.