Troubleshooting Guide

🚨 Common Problem Categories

Installation and Startup Issues

Extension Cannot Be Installed

Symptoms:

• Chrome Store shows "Extension is invalid"
• Downloaded files cannot be installed
• Errors during installation process

Cause Analysis:

• Corrupted or incomplete files
• Browser version too old
• Security software blocking installation

Solutions:

1. Redownload

   • Clear browser cache and redownload
   • Ensure downloading from official channels

2. Check Browser Version

   • Chrome 88+
   • Firefox 90+
   • Edge 88+
   • Safari 14+

3. Temporarily Disable Security Software

   • Antivirus software
   • Firewall
   • Other security extensions

Extension Won't Start

Symptoms:

• No response when clicking icon
• Popup shows blank
• Extension icon is grayed out

Solutions:

1. Restart Browser

   • Completely close all browser windows
   • Restart browser

2. Check Extension Permissions

   • Open chrome://extensions/
   • Ensure extension is enabled
   • Check permission settings

3. Reload Extension

   • Click "Reload" button on extension page
   • Or use shortcut Ctrl+R (Windows) / Cmd+R (Mac)

Screenshot Function Issues

Screenshot Shows Blank

Symptoms:

• Screenshot result is white or black
• Content area is empty
• Only browser interface elements

Cause Analysis:

• Page uses special security policies
• Content rendered through Canvas or WebGL
• Browser security restrictions

Solutions:

1. Check Page Settings

   • Ensure page allows screenshots
   • Check Content-Security-Policy
   • Temporarily disable ad blockers

2. Try Different Modes

   • Switch to visible area mode
   • Use element selection mode
   • Try area selection mode

3. Browser Debugging

   • Open developer tools to check for errors
   • View error information in Console
   • Check Network requests

Full Page Screenshot Failed

Symptoms:

• Stops during scrolling
• Screenshot is incomplete
• Image stitching errors

Solutions:

1. Adjust Page Settings

   • Reduce page scroll speed
   • Increase scroll wait time
   • Disable page animation effects

2. Optimize Network Environment

   • Ensure stable network connection
   • Wait for page to fully load
   • Pause auto-playing content

3. Page Processing

   • Use segmented screenshots for extra-long pages
   • Manually control scroll process
   • Use professional mode

Permission and Security Issues

Permission Denied

Symptoms:

• "Insufficient permissions" prompt
• Cannot access specific pages
• Some features unavailable

Solutions:

1. Check Extension Permissions

   • Open extension management page
   • Ensure all necessary permissions are enabled
   • Manually adjust permission settings

2. Website Permission Settings

   • Check website permission settings
   • Ensure website allows extension access
   • Check CORS policies

3. Enterprise Environment Policies

   • Contact IT administrator
   • Request to add to whitelist
   • Use enterprise version extension

Security Software Blocking

Symptoms:

• Security software alerts
• Extension functionality limited
• Data transfer blocked

Solutions:

1. Add Trust

   • Add extension to security software whitelist
   • Allow extension network access
   • Enable file access permissions

2. Adjust Security Level

   • Temporarily lower security level
   • Add domain to trust list
   • Configure firewall rules

🔍 Diagnostic Tools

Built-in Diagnostics

Extension provides built-in diagnostic tools:

1. Open Diagnostic Page

   • Click extension icon
   • Select "Settings" > "Diagnostics"
   • Run system diagnostics

2. Diagnostic Items

   • Extension status check
   • Permission verification
   • Network connection test
   • Storage space check

3. Export Diagnostic Report

   • Generate detailed report file
   • Include system information and error logs
   • Convenient for technical support analysis

Browser Developer Tools

Use browser developer tools to diagnose issues:

1. Console Panel

   • View error messages
   • Monitor extension messages
   • Check error logs

2. Network Panel

   • Monitor network requests
   • Check API calls
   • Analyze response times

3. Application Panel

   • Check storage data
   • View extension configuration
   • Analyze cache usage

Browser Diagnostic Pages

Use browser built-in pages for diagnosis:

1. Extension Management Page

   • Visit chrome://extensions/
   • View extension status and permissions
   • Check error information

2. Permission Management Page

   • Visit chrome://extensions/permissions
   • Manage extension permission settings

3. Error Log Page

   • Visit chrome://extensions/errors
   • View detailed error information

🛠️ Advanced Problem Solving

Memory Leak Issues

Symptoms:

• Browser becomes slow
• Memory usage continues to grow
• Extension response becomes slow

Solutions:

1. Monitor Memory Usage

   • Use browser task manager to view memory usage
   • Observe memory changes during extension operation
   • Regularly restart browser to release memory

2. Clear Cache

   • Clear extension cache
   • Restart browser
   • Close unnecessary tabs

3. Optimize Settings

   • Reduce number of screenshots processed simultaneously
   • Lower screenshot quality settings
   • Enable auto-cleanup feature

Network Connection Issues

Symptoms:

• Cannot sync to cloud
• Update failures
• Online features unavailable

Solutions:

1. Check Network Connection

   • Use online network test tools to check connection
   • Visit service website to confirm service status
   • Try accessing other websites to verify network

2. Configure Proxy Settings

   • Check system proxy settings
   • Configure extension proxy settings
   • Test different network environments

3. Use Offline Mode

   • Enable offline work mode
   • Store screenshots locally
   • Sync after network recovery

Compatibility Issues

Symptoms:

• Doesn't work on specific websites
• Conflicts with other extensions
• Browser version compatibility issues

Solutions:

1. Website Compatibility

   • Check website's Content-Security-Policy
   • Test different screenshot modes
   • Use compatibility mode

2. Extension Conflicts

   • Disable other extensions for individual testing
   • Adjust extension loading order
   • Use conflict detection tools

3. Browser Version

   • Update to latest browser version
   • Use compatibility mode
   • Consider downgrading to stable version

📊 Performance Issues

Slow Screenshot Speed

Symptoms:

• Long screenshot processing time
• Excessive wait time
• High system resource usage

Optimization Solutions:

1. Lower Quality Settings

   • Use standard quality instead of high quality
   • Choose JPG format instead of PNG
   • Enable compression options

2. Optimize Hardware Usage

   • Enable hardware acceleration in browser settings
   • Adjust screenshot resolution settings
   • Choose appropriate compression quality

3. Batch Processing Optimization

   • Reduce concurrent count
   • Increase processing intervals
   • Use queue management

Insufficient Storage Space

Symptoms:

• Insufficient storage space prompt
• Cannot save new screenshots
• Sync failures

Solutions:

1. Clear Storage Space

   • Delete unnecessary screenshots
   • Clear temporary files
   • Compress existing files

2. Optimize Storage Strategy

   • Enable auto-cleanup feature
   • Set file save period (e.g., 30 days)
   • Limit maximum storage space
   • Enable file compression options

3. Use External Storage

   • Configure external storage path
   • Use cloud storage
   • Regularly backup to external devices

🔄 Factory Reset

When encountering unsolvable problems, you can try factory reset:

1. Backup Important Data

   • Export configuration and settings
   • Backup important screenshots
   • Save account information

2. Reset Extension

   • Remove extension in extension management page
   • Clear browser-related data
   • Reinstall extension program

3. Reconfigure

   • Reinstall extension
   • Restore configuration backup
   • Test basic functions

📞 Get Technical Support

If none of the above methods solve the problem, you can seek technical support:

Contact Information

• Email Support: support@fullpagescreenshot.top
• Online Customer Service: Online chat on official website
• Community Forum: https://community.fullpagescreenshot.com

Please provide when submitting issues:

1. System Information

   • Operating system and version
   • Browser name and version
   • Extension version number

2. Problem Description

   • Detailed description of the problem
   • Steps to reproduce the problem
   • Expected behavior vs actual behavior

3. Error Information

   • Complete error messages
   • Console logs
   • Screenshots or screen recordings

4. Environment Information

   • Network environment
   • Other installed extensions
   • Specific website information

Common Response Times

• Email Support: Response within 24-48 hours
• Urgent Issues: Response within 4-8 hours
• Community Support: Depends on community activity

🎯 Preventive Measures

To avoid problems, it's recommended to take the following preventive measures:

1. Regular Updates

   • Keep extension and browser up to date
   • Pay attention to official update notes
   • Test new version features

2. Reasonable Configuration

   • Choose appropriate settings according to needs
   • Avoid excessive resource usage
   • Regularly clear cache

3. Data Backup

   • Regularly backup important screenshots
   • Export configuration settings
   • Use cloud sync

4. Monitor Usage

   • Pay attention to extension performance
   • Monitor storage space
   • Pay attention to abnormal behavior

🎉 Summary

Troubleshooting is an important part of using any software tool. Through the methods provided in this guide, you should be able to solve most common problems.

Key Points:

• Start troubleshooting from simple issues
• Make good use of built-in diagnostic tools
• Keep extension and system updated
• Seek technical support promptly

Remember, most problems have solutions, patience and systematic troubleshooting methods are key.