SesWi v3.4, New Security & Feature Enhancement

v3.4.0 (2026-05-14)

Breaking Changes

• Web Crypto API Only — Encryption now uses native Web Crypto API (AES-256-GCM) exclusively
  • SJCL library support has been removed
  • Users upgrading from v3.3.0 or earlier must export sessions as JSON first, then re-import after updating
  • OWI files from previous versions are no longer compatible

New Features

• Cookie Editor Export — New export format compatible with Cookie Editor extension
  • Available in Quick Actions modal alongside JSON and Netscape formats
  • Includes hostOnly, session, storeId, and sameSite fields
• Update Checker — Automatically checks GitHub releases for new versions
  • Badge appears in footer when update is available
  • Checks once per 24 hours (cached to avoid API rate limits)
  • Click badge to go directly to release page

Security

• Native AES-256-GCM — Replaced SJCL with Web Crypto API
  • PBKDF2 with SHA-256 for key derivation (100k iterations)
  • Recovery answers use 200k iterations (compensate for lower entropy)
  • 12-byte IV, 16-byte salt, authenticated encryption
• Cleaner codebase — Removed ~100 lines of legacy SJCL compatibility code

SesWi V3 - New UI, New Logic and features

Changelog

v3.0.0 (2026-02-07)

New Features

• UI Overhaul — New macOS-inspired "Traffic Lights" modal design with smooth entry/exit animations
• Delete Expired Sessions — New batch action in Manage tab to find and delete sessions with expired auth cookies
• Edit Session Modal — Proper modal dialog for editing session names (replaces browser prompt)
• Replace Session Modal — Safe confirmation dialog for replacing sessions (replaces browser confirm)
• Batch OWI Export — New modal for password-protected batch exports
• Saved Data Card — New card in Session Actions showing cookies/localStorage/sessionStorage counts
• Repo Info Card — Added repository and author information card in the popup

UI Improvements

• Cleaner Session Cards — Removed data counts from cards, now shows only expiration status
• Compact Expiration Info — New format: "Expiration info (Valid: 48d)" with expand toggle
• Domain Badge — Shows simplified domain (e.g., "facebook" not "facebook.com") next to Visit button
• Better Layout — URL on left, timestamp on right in session cards
• Auto Domain Grouping — Sessions grouped by domain instead of manual tags
• Consistent Icons — All favicons now have a unified light grey background for better visibility
• Enhanced Add Session Button — Improved button styling with better visibility and hover effects

Browser Support

• Only chromium based for now