### Complete Privacy Profile Example

Source: https://context7.com/selfshore/ysbrowser/llms.txt

A comprehensive example combining multiple privacy features including timezone, language, fingerprint seeds, proxy settings, screen resolution, geolocation, and automation-friendly flags. Each instance requires a unique --user-data-dir.

```bash
chrome \
  --timezone=America/New_York \
  --lang=en-US \
  --accept-lang=en-US,en \
  --fpseed=myUniqueProfileSeed2024 \
  --canvas-seed=canvasProfile1 \
  --webgl-seed=webglProfile1 \
  --audio-seed=audioProfile1 \
  --font-seed=fontProfile1 \
  --gpu-seed=gpuProfile1 \
  --proxy-server=socks5://proxy.example.com:1080 \
  --proxy-auth=user:pass \
  --cpucores=8 \
  --platformversion=17.0.0 \
  --custom-screen=1920x1080,1920x1040 \
  --force-device-scale-factor=1 \
  --custom-geolocation=40.7128,-74.0060,100 \
  --webrtc-ip-policy=disabled \
  --close-portscan \
  --nocrash \
  --iconumber=1 \
  --user-data-dir=./profile_1
```

--------------------------------

### Configure Virtual Media Devices

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Use --use-fake-device-for-media-stream to configure virtual camera and microphone devices for navigator.mediaDevices.enumerateDevices. A unique --user-data-dir is recommended.

```bash
chrome \
  --use-fake-device-for-media-stream \
  --user-data-dir=./my_user_data
```

--------------------------------

### Configure Hardware Profiles

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Sets CPU core counts and platform versions to simulate specific hardware environments.

```bash
# Windows 11 configuration
chrome \
  --cpucores=8 \
  --platformversion=17.0.0 \
  --user-data-dir=./my_user_data

# Windows 10 configuration
chrome \
  --cpucores=6 \
  --platformversion=10.0.0 \
  --user-data-dir=./my_user_data

# macOS configuration
chrome \
  --cpucores=10 \
  --platformversion=15.4.1 \
  --user-data-dir=./my_user_data
```

--------------------------------

### Simulate Brave Browser

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Simulate the Brave browser by setting timezone, language, accept-language, fingerprint seed, Chrome version, custom brand, and enabling/disabling specific features. Use a unique --user-data-dir.

```bash
chrome \
  --timezone=Asia/Hong_Kong \
  --lang=zh-CN \
  --accept-lang=zh-CN,en \
  --fpseed=121e0opwlltx \
  --chrome-version=140.0.0.0 \
  --custom-brand=Brave \
  --enable-features=BraveAPI \
  --disable-features=keyboardAPI,NetworkAPI \
  --user-data-dir=./my_user_data
```

--------------------------------

### Configure Language Settings

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Sets the UI language and Accept-Language headers for localization consistency.

```bash
# Chinese language configuration
chrome \
  --lang=zh-CN \
  --accept-lang=zh-CN,en \
  --user-data-dir=./my_user_data

# English US configuration
chrome \
  --lang=en-US \
  --accept-lang=en-US,en \
  --user-data-dir=./my_user_data

# Japanese configuration
chrome \
  --lang=ja-JP \
  --accept-lang=ja-JP,ja,en \
  --user-data-dir=./my_user_data
```

--------------------------------

### Combined Automation-Friendly Configuration

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Combine flags for crash prevention, CAPTCHA bypass, and port scanning prevention for automation. A unique --user-data-dir is essential.

```bash
chrome \
  --nocrash \
  --enable-features=TurnstileClicker,PXAutoHold \
  --close-portscan \
  --user-data-dir=./my_user_data
```

--------------------------------

### Configure Proxy Servers

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Routes browser traffic through HTTP, SOCKS4, or SOCKS5 proxies with optional authentication.

```bash
# HTTP proxy
chrome --proxy-server=http://127.0.0.1:8080 --user-data-dir=./my_user_data

# SOCKS5 proxy with authentication
chrome \
  --proxy-server=socks5://proxy.example.com:1080 \
  --proxy-auth=username:password \
  --user-data-dir=./my_user_data

# SOCKS4 proxy
chrome --proxy-server=socks4://192.168.1.100:1080 --user-data-dir=./my_user_data
```

--------------------------------

### Configure Screen Resolution

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Customizes reported screen dimensions and device scale factors.

```bash
# Set screen resolution with available area
# Format: widthxheight,availWidthxavailHeight
chrome \
  --custom-screen=1920x1080,1920x1040 \
  --force-device-scale-factor=1 \
  --user-data-dir=./my_user_data

# Retina/HiDPI display simulation
chrome \
  --custom-screen=2560x1440,2560x1400 \
  --force-device-scale-factor=2 \
  --user-data-dir=./my_user_data

# Simple resolution without available area (auto-calculated)
chrome \
  --custom-screen=1792x1120 \
  --user-data-dir=./my_user_data
```

--------------------------------

### Set Custom Screen Dimensions

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Configures the screen width/height and available width/height, corresponding to JavaScript's screen object properties. Width and height are required.

```bash
1792x1120,1792x1039
```

```bash
1792x1120
```

--------------------------------

### Basic YSbrowser Usage

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Basic command-line arguments for YSbrowser, including timezone, language settings, and a required user data directory for environment isolation.

```bash
chrome --timezone=Asia/Hong_Kong --lang=zh-CN --accept-lang=zh-CN,en --fpseed=121e0opwlltx  --user-data-dir=./my_user_data
```

--------------------------------

### Use Fictional Browser Brand

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Configure a fictional browser brand using --custom-brand. No --user-agent is needed for fictional brands. A unique --user-data-dir is recommended.

```bash
chrome \
  --custom-brand="Privacy Browser" \
  --user-data-dir=./my_user_data
```

--------------------------------

### Configure Fingerprint Seeds

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Controls the generation of consistent browser fingerprints across sessions using global or granular seeds.

```bash
# Basic fingerprint seed - affects multiple fingerprint types
chrome --fpseed=121e0opwlltx --user-data-dir=./my_user_data

# Individual fingerprint seeds for granular control
chrome \
  --fpseed=121e0opwlltx \
  --canvas-seed=myCanvasSeed123 \
  --webgl-seed=myWebglSeed456 \
  --audio-seed=myAudioSeed789 \
  --font-seed=myFontSeed101 \
  --svg-seed=mySvgSeed102 \
  --speech-seed=mySpeechSeed103 \
  --rect-seed=myRectSeed104 \
  --quota-seed=myQuotaSeed105 \
  --css-seed=myCssSeed106 \
  --gpu-seed=myGpuSeed107 \
  --user-data-dir=./my_user_data
```

--------------------------------

### Set HTTP Proxy Server

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Configures the network proxy server for HTTP and HTTPS traffic. Specify the protocol, address, and port.

```bash
--proxy-server=http://127.0.0.1:8080
```

--------------------------------

### Set Proxy Authentication

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Sets the username and password for network proxy authentication.

```bash
--proxy-auth=username:password
```

--------------------------------

### Simulate Brave Browser

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Configures YSbrowser to simulate the Brave browser, including specific Chrome version, custom brand, and feature enablement/disablement.

```bash
chrome --timezone=Asia/Hong_Kong --lang=zh-CN --accept-lang=zh-CN,en --fpseed=121e0opwlltx  --user-data-dir=./my_user_data --chrome-version=140.0.0.0 --custom-brand=Brave --enable-features=BraveAPI --disable-features=keyboardAPI,NetworkAPI
```

--------------------------------

### Spoof Browser Brand with User-Agent

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Spoofs the browser brand and includes a specific user-agent string. This is recommended when spoofing a real browser brand.

```bash
--custom-brand="Microsoft Edge"
--user-agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 Edg/137.0.0.0"
```

--------------------------------

### Configure Timezone

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Sets the browser's timezone to match specific regions.

```bash
# Set timezone to match your proxy location
chrome --timezone=America/New_York --user-data-dir=./my_user_data

# Asian timezone example
chrome --timezone=Asia/Tokyo --user-data-dir=./my_user_data

# European timezone example
chrome --timezone=Europe/London --user-data-dir=./my_user_data
```

--------------------------------

### Configure WebRTC

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Manages WebRTC IP leakage by disabling it or routing through a proxy.

```bash
# Disable WebRTC completely
chrome \
  --webrtc-ip-policy=disabled \
  --user-data-dir=./my_user_data

# Use proxy IP for WebRTC (v5.2+)
chrome \
  --webrtc-ip-policy=proxy \
  --webrtc-proxy-ip=203.0.113.50 \
  --user-data-dir=./my_user_data
```

--------------------------------

### Set Force Device Scale Factor

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Sets the physical to CSS pixel ratio, equivalent to devicePixelRatio.

```bash
1
```

```bash
2
```

--------------------------------

### Enable CAPTCHA Bypass for Automation

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Enable Cloudflare Turnstile and PX CAPTCHA bypass for automation tools. A unique --user-data-dir is required.

```bash
chrome \
  --enable-features=TurnstileClicker,PXAutoHold \
  --user-data-dir=./my_user_data
```

--------------------------------

### Spoof Microsoft Edge Browser

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Use the --custom-brand and --user-agent flags to spoof Microsoft Edge. Ensure a unique --user-data-dir for each session.

```bash
chrome \
  --custom-brand="Microsoft Edge" \
  --user-agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 Edg/137.0.0.0" \
  --user-data-dir=./my_user_data
```

--------------------------------

### Configure Geolocation

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Sets custom coordinates or disables geolocation access entirely.

```bash
# Set custom geolocation (latitude, longitude, accuracy in meters)
chrome \
  --custom-geolocation=40.7128,-74.0060,50 \
  --user-data-dir=./my_user_data

# Block geolocation access entirely (v5.2+)
chrome \
  --block-geolocation \
  --user-data-dir=./my_user_data
```

--------------------------------

### Set Specific Chrome Version

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Specify the Chrome browser version using --chrome-version. This affects API behavior and TLS fingerprints. Always use a unique --user-data-dir.

```bash
chrome \
  --chrome-version=140.0.7339.185 \
  --user-data-dir=./my_user_data
```

--------------------------------

### Fix Automation Tool Crashes

Source: https://context7.com/selfshore/ysbrowser/llms.txt

Use the --nocrash flag to fix Playwright/Puppeteer iframe crash issues. Ensure a unique --user-data-dir for each session.

```bash
chrome \
  --nocrash \
  --user-data-dir=./my_user_data
```

--------------------------------

### Spoof Fictional Browser Brand

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Spoofs a fictional browser brand. A user-agent is not needed for non-existent brands.

```bash
--custom-brand="fake brand"
```

--------------------------------

### Set Custom Geolocation

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Sets the latitude, longitude, and accuracy for navigator.geolocation.getCurrentPosition.

```bash
--custom-geolocation=110,220,70
```

--------------------------------

### Disable WebRTC IP Leak Prevention

Source: https://github.com/selfshore/ysbrowser/blob/main/README-en.md

Disables the WebRTC IP policy to prevent real IP leaks.

```bash
--webrtc-ip-policy=disabled
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.