🧘‍♀️ Zen-Sync

A Windows only command-line tool for syncing Zen Browser data with S3-compatible storage services.

🤔 What it does

Since Zen Browser doesn't have proper profile sync yet, this is my quick solution built in a few hours to keep my stuffs in sync across multiple machines.

It backs up all the important stuff to any S3-compatible cloud storage so you can restore or "sync" your profile anywhere. No more manually dragging around profile folders every time you edit a settings 🥹🥹😭. I'm so done with that.

The default (customizable) setting skips session cookies, temporary storage, and other data because sites I visit can detect copied sessions through fingerprinting and will invalidate them.

✨ Features

• 🔄 Bidirectional sync between local and S3 storage
• 🔍 Filtering - only syncs important files, excludes cache and temporary data
• ⚡ "Incremental" sync - only uploads/downloads changed files
• 🔗 Custom S3 endpoints - works with any S3-compatible service

📋 What gets synced by default

Included:

• 📁 Profile configuration (profiles.ini, installs.ini, compatibility.ini)
• 🗃️ Profile Groups databases (Profile Groups/*.sqlite)
• 📚 Bookmarks (places.sqlite, bookmarks.html)
• 🔒 Saved passwords and certificates (key4.db, cert9.db, logins.json)
• 🧩 Extensions and their settings (extensions.json, extension-*.json)
• 🎨 Custom themes and CSS (zen-*.json, zen-*.css, userChrome.css, userContent.css)
• ⚙️ Browser preferences (prefs.js, user.js)
• 🔍 Search engine settings (search.json.mozlz4)
• 🖼️ Favicons (favicons.sqlite)
• 📂 Chrome folder customizations (chrome/**/*)
• 📔 and other files from customizable ruleset

Excluded:

• 🗑️ Cache files (cache2/*, thumbnails/*, shader-cache/*)
• 📜 Logs and crash reports (logs/*, crashes/*, minidumps/*)
• 🔒 Lock files (*.lock, *.lck, parent.lock)
• 💾 Temporary storage (storage/temporary/*, storage/*/ls/*)
• 📋 Session data (sessionstore.jsonlz4, sessionCheckpoints.json)
• 🍪 Session cookies (cookies.sqlite*)
• 🛡️ Temporary browsing data (webappsstore.sqlite*, safebrowsing/*)

Use --help with any command for detailed options.

🚀 Quick Start

1. ⚙️ Configure your S3 settings:

   python zensync.py configure --bucket your-bucket-name --endpoint-url https://your-s3-endpoint.com
   

   or just run python zensync.py configure then edit the configuration json manually.

2. ⬆️ Upload your profiles:

   python zensync.py upload
   

3. ⬇️ Download profiles on another machine:

   python zensync.py download
   

4. 🔄 Two-way sync:

   python zensync.py sync
   

🎮 Main Commands

• ⚙️ configure - Set up S3 credentials and paths
• ⬆️ upload - Backup profiles to S3
• ⬇️ download - Restore profiles from S3
• 🔄 sync - Bidirectional synchronization
• 📋 list-profiles - Show available local profiles
• ℹ️ profile-info - Display profile system information

📝 Configuration

Settings are stored in zen_sync_config.json.