Browser Configuration Guide for Claude Anti-Ban

1. Chrome Anti-Ban Configuration

Chrome is the most widely used browser for Claude access. Proper configuration prevents timezone mismatches, WebRTC leaks, and Chinese font fingerprints:

System Timezone Sync

# macOS: Set timezone to match proxy exit region
sudo systemsetup -settimezone "America/Los_Angeles"

# Windows: via PowerShell (requires admin)
Set-TimeZone -Id "Pacific Standard Time"

# Linux
sudo timedatectl set-timezone America/Los_Angeles

Chrome Launch Flags for Enhanced Privacy

# Launch Chrome with fingerprint-resistant flags
google-chrome   --disable-blink-features=AutomationControlled   --disable-webrtc   --lang=en-US   --user-agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 Chrome/131.0.0.0"

Chrome Settings Checklist

• Languages: Set chrome://settings/languages to English (United States) and remove all Chinese language entries.
• WebRTC Control: Install WebRTC Network Limiter extension and set to "Use my proxy server (if any)".
• Do Not Track: Enable at chrome://settings/privacy.
• Clear On Exit: Configure chrome://settings/cookies to clear cookies and site data when you close all windows.

2. Firefox Privacy Enhancement

Firefox offers granular privacy controls through about:config. These settings minimize browser fingerprinting and prevent timezone/WebRTC leaks:

Critical about:config Settings

# Open about:config and set:
privacy.resistFingerprinting = true
webgl.disabled = true
media.peerconnection.enabled = false
geo.enabled = false
intl.accept_languages = en-US, en
general.useragent.locale = en-US

Firefox Container Tabs for Multi-Account Isolation

Use Firefox Multi-Account Containers to isolate Claude accounts into separate cookie/storage contexts without needing separate browser profiles:

1. Install "Firefox Multi-Account Containers" extension
2. Create a dedicated container per Claude account
3. Right-click Claude.ai → "Open in New Container Tab"
4. Each container maintains isolated cookies, localStorage, IndexedDB

3. Edge Enterprise Policy Settings

Microsoft Edge supports Group Policy settings for fine-grained control over WebRTC, geolocation, and hardware acceleration:

Windows Group Policy Configuration

# Open gpedit.msc (Windows Pro/Enterprise)
Computer Configuration → Administrative Templates → Microsoft Edge

WebRtcUdpPortRange: Disabled
DefaultGeolocationSetting: Block geolocation
HardwareAccelerationModeEnabled: Disabled (prevents GPU fingerprinting)

Edge Flags for Privacy

edge://flags

#edge-enable-webrtc-hide-local-ips-with-mdns → Enabled
#smooth-scrolling → Disabled
#calculate-native-win-occlusion → Disabled

4. Essential Browser Extensions

Install privacy-focused extensions to prevent fingerprint leaks and manage cookies across sessions:

• User-Agent Switcher: Rotate User-Agent strings to match your target region (US/UK/SG).
• Cookie AutoDelete: Automatically clear cookies when tabs close, except for whitelisted domains.
• uBlock Origin: Block third-party trackers and analytics scripts that can correlate sessions.
• Decentraleyes: Serve common JavaScript libraries locally to prevent CDN tracking.
• Clear Browsing Data: Schedule automatic clearing of cache, cookies, and history on browser restart.

Extension Configuration Best Practices

• Whitelist only essential domains (claude.ai, anthropic.com) in Cookie AutoDelete.
• Set User-Agent Switcher to match OS and browser version that aligns with proxy exit region.
• Disable extensions that require broad permissions or inject scripts into all pages.