Opera browser required.
1. Focus Tracking Prevention (Focus Blocker)
Blocks websites from detecting when you switch to another tab or minimize the browser window. Websites will always "see" your tab as active. This is highly useful for online tests, webinars, or preventing video players from pausing when you look away.
2. Anti-Fingerprinting
Spoofs and masks your device's unique technical characteristics, making it hard for ad networks to track you without cookies. It protects data regarding your CPU, RAM, screen size, battery status, installed fonts, geolocation, and timezone. Can randomize these traits per session or per domain.
3. Network Security
Prevents public websites from scanning or sending unauthorized requests to your local home/corporate network (localhost and private IPs). It also enforces a strict WebRTC policy to stop your real IP address from leaking while using a VPN.
4. Active Anti-Phishing (Threat Shield)
Displays a prominent warning banner directly over a webpage if it triggers security heuristics: such as using insecure HTTP on public hosts, mimicking popular domains, or utilizing suspicious multi-layered redirect chains.
5. Pop-up & Telemetry Blocking (ADS Block)
Stops annoying pop-ups that trigger without user consent. It blocks background telemetry/analytics requests and uses cosmetic CSS rules to hide ad elements from layout layouts.
6. Storage Isolation (Device Security)
Imposes strict restrictions on browser databases (localStorage, IndexedDB, Cache API). This prevents sites from storing hidden super-cookies used for long-term user tracking.
7. Copy Helper
Bypasses script-based restrictions on websites that try to disable text selection, right-click context menus, or copying content.
8. User-Friendly Control
The extension popup allows you to pause protection for the current tab instantly or quickly whitelist a domain. A dedicated options page provides visual dashboards showing blocked tracking events and statistics.
- This extension can access your data on all websites.
- This extension can manipulate privacy-related settings.
- This extension can access your tabs and browsing activity.
Screenshots
About the extension
- Downloads
- 32
- Category
- Privacy & Security
- Version
- 2.5.0
- Size
- 176.5 KB
- Last update
- 29 Jul 2026
- Licence
- Source code page
- https://github.com/ppvikentiy/security-browser-ex
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