Software Settings

Software settings control how your browser profile appears to websites through its operating system parameters. While default values typically provide the most natural fingerprint, you may need to customize these settings for specific use cases.

Default Values

We recommend keeping default values unless you have a specific reason to change them, as they provide an optimized fingerprint where all components work together naturally.

Navigator Settings

JS.Navigator provides websites with information about your device through various JavaScript objects. These parameters work together to create your device's fingerprint.

Masked (Recommended)

Masked Mode

• Provides optimized parameters based on profile's OS and browser
• Parameters are internally consistent
• Best for most use cases

Custom

Custom Mode

• Allows manual setting of parameters
• Requires careful attention to consistency

Important

When customizing, ensure these values match:

• User-Agent
• Platform
• HardwareConcurrency
• OSCPU

Real

Real Mode

• Uses actual device parameters
• Based on profile's OS and browser type

Core Parameters

User-Agent

The User-Agent string provides key information about your browser profile. Here's an example breakdown:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)
Chrome/131.0.6778.33 Safari/537.36

Component	Value	Description
Browser	Chrome	Browser type
Version	131	Browser core version
OS	Windows	Operating system
OS Version	NT 10.0	OS version details

note

Similar User-Agent values across profiles are normal and help blend in with real devices.

Platform and Hardware

Parameter	Description	Example Values
Platform	Browser compilation platform	Win64, Mac Intel, Linux 686
HardwareConcurrency	Available CPU threads	2, 4, 6, 8, 12, 16
OSCPU (Firefox-based)	OS version string	Windows NT 10.0; Win64; x64; Intel Mac OS X 10.14; Linux x86_64

Port Scan Protection

Applications use ports (0-65535) for communication. While most websites don't scan ports due to legal restrictions, some fingerprint checkers might.

Masked (Recommended)

• Hides actual system ports
• Provides consistent masked values

Custom

• Masks all ports except whitelisted
• Example: 80, 443, 5938 for TeamViewer

Real

• Shows actual open system ports

Font Data Protection

Websites can identify users through font fingerprinting using two main methods:

Font Metrics

• Measures unique font characteristics:
  • Size
  • Spacing
  • Character shapes

Font List Enumeration

Uses CSS introspection to detect installed fonts by measuring phrase widths.

Masked (Recommended)

• Provides OS-appropriate font list
• Maintains consistency with profile

Real

• Uses actual system fonts
• May be more identifiable

Best Practice

Use masked font data to maintain consistency with your profile's OS while preventing fingerprinting through unique font combinations.