Browser Compatibility

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Supported Browsers

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Browser Feature Requirements

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Required JavaScript Features

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Required Browser APIs

// Core APIs required by RISKSHEET:
window.localStorage              // Session/cache storage
window.sessionStorage           // Temporary data
window.indexedDB               // Large data caching
window.fetch()                 // HTTP requests
window.WebSocket               // Real-time updates
Document.querySelector()        // DOM manipulation
Element.addEventListener()      // Event handling

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Security Requirements

• TLS 1.2+ encryption for HTTPS connections
• Third-party cookie support (for Polarion session cookies)
• JavaScript execution enabled
• Pop-up windows allowed (for dialogs)

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Browser Compatibility Matrix

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Operating System Compatibility

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Desktop Operating Systems

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Mobile/Tablet (Limited Support)

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Known Browser-Specific Issues

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Firefox — Scrollbar Rendering Issues

• Scrollbar appears with incorrect styling in large risksheets
• Horizontal scroll behaves erratically when many columns present
• Scrollbar position doesn’t align with visible content

/* Users can add custom CSS to fix scrollbar (not recommended) */
/* Instead, switch to Edge or Chrome for better experience */

• Using Firefox? — Switch to Microsoft Edge for optimal experience (same Chromium engine, better Polarion integration)
• Using Edge or Chrome? — Excellent support, continue with current browser
• Using Safari? — Good support, continue with current browser

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Safari — Clipboard Permissions

• Copy/Paste operations prompt for permission
• Some clipboard data types not supported
• Rich text formatting may be lost when pasting

1. Grant clipboard permissions when Safari prompts
2. Use keyboard shortcuts (Cmd+C, Cmd+V) instead of context menu
3. Export to Excel if complex copy/paste needed

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Chrome — Memory Consumption with Large Datasets

• Page becomes slow after scrolling through large risksheet
• Browser tab uses >1GB RAM
• Keyboard input has 500ms+ lag

1. Apply filters to reduce visible items
2. Create separate documents for different risk types
3. Use pagination or hierarchical levels to limit display
4. Refresh browser tab periodically

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Browser Extensions and Compatibility

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Safe Extensions

✓ Password managers (1Password, LastPass, Bitwarden)
✓ AdBlock Plus (ad blocking)
✓ Dark Reader (dark mode)
✓ Dark background/light text extensions
✓ Grammar checkers (Grammarly)
✓ VPN extensions (for security)

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Problem Extensions

✗ Content Security Policy modifiers
✗ Script blockers (e.g., uBlock in hard mode)
✗ Form-filling automation tools
✗ DOM-modifying extensions
✗ JavaScript disablers

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Recommended Extension Disabling

1. Open RISKSHEET in private/incognito window (Extensions disabled by default)
2. Test if issue persists
3. If issue disappears: → Extensions are the problem → Disable extensions one-by-one to identify culprit
4. Contact Nextedy support with extension list

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Hardware Requirements by Browser

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Minimum Hardware

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Performance Recommendations for Large Risksheets

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Browser Configuration for RISKSHEET

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Recommended Settings

• Edge/Chrome: Settings → Privacy → JavaScript → Allowed
• Firefox: about:config → javascript.enabled = true
• Safari: Develop → Enable JavaScript

• Edge: Settings → Privacy → Cookies → Allow all cookies
• Chrome: Settings → Privacy → Third-party cookies → Allow
• Firefox: Preferences → Privacy → Cookies → Allow all

• Edge: Settings → Privacy → Pop-ups → Allow for Polarion domain
• Chrome: Settings → Privacy → Notifications → Allow for Polarion

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Security Settings

Do not disable certificate validation even for internal servers
If self-signed cert: Add exception or install certificate properly

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Performance Comparison

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Load Time Test (1000-item Risksheet)

Microsoft Edge (Chromium)     ████████░░ 2.3 sec (FASTEST)
Google Chrome                  ████████░░ 2.4 sec
Apple Safari                   █████████░ 2.6 sec
Mozilla Firefox                ██████████ 3.1 sec

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Rendering Performance (Column Resize)

Microsoft Edge (Chromium)     Instant (60 fps)
Google Chrome                  Instant (60 fps)
Apple Safari                   Smooth (55 fps)
Mozilla Firefox                Good (50 fps)

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Browser Update Strategy

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Automatic Updates (Recommended)

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Browser Version Pinning (Enterprise)

Recommended: Pin to latest available version of each LTS track

Example:
- Edge: Latest LTS (every 2 years)
- Chrome: Latest (updated every 4 weeks)
- Firefox: ESR (every 12 months)

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Troubleshooting Browser Issues

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Step 1: Clear Cache and Cookies

• Edge: Ctrl+Shift+Del → Clear browsing data
• Chrome: Ctrl+Shift+Del → Clear browsing data
• Firefox: Ctrl+Shift+Del → Clear Recent History
• Safari: History → Clear History

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Step 2: Disable Extensions

1. Open private/incognito window (extensions disabled)
2. Test if issue persists
3. If fixed — extension problem
4. If not fixed — browser or RISKSHEET issue

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Step 3: Check JavaScript Console

Press F12 to open Developer Tools
Go to Console tab
Look for JavaScript errors
Note error messages and report to support

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Step 4: Verify Network Connection

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Step 5: Try Different Browser

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Related Pages

• Installation — Install RISKSHEET on supported systems
• Troubleshooting: Browser-Specific Issues — Detailed browser troubleshooting guide
• Polarion Version Compatibility — Supported Polarion versions
• System Requirements — Complete system requirements