From 0e1e54efc359431dccb470ffab71efccfbf0c825 Mon Sep 17 00:00:00 2001
From: DannyDannyDanny <dth@taiga.ai>
Date: Fri, 30 Jan 2026 18:17:49 +0100
Subject: [PATCH] Add firefox-tabs.py script

---
 scripts/firefox-tabs.py | 476 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 476 insertions(+)
 create mode 100755 scripts/firefox-tabs.py

diff --git a/scripts/firefox-tabs.py b/scripts/firefox-tabs.py
new file mode 100755
index 0000000..2bf229a
--- /dev/null
+++ b/scripts/firefox-tabs.py
@@ -0,0 +1,476 @@
+#!/usr/bin/env python3
+"""
+Script to get information about Firefox's open tabs.
+Works with Firefox installed via Nix/Home Manager.
+
+Usage:
+    python3 firefox-tabs.py [method] [rdp_port]
+    
+Methods:
+    session, s  - Read from Firefox session files (default)
+    rdp, r      - Use Remote Debugging Protocol
+    both, b     - Try both methods
+"""
+
+import json
+import sys
+import os
+import struct
+import subprocess
+from pathlib import Path
+from urllib.request import urlopen
+from urllib.error import URLError
+
+# Try to find Nix Python with lz4 if available
+def find_nix_python():
+    """Try to find a Nix Python with lz4 library."""
+    # Common Nix store paths
+    nix_store = Path("/nix/store")
+    if not nix_store.exists():
+        return None
+    
+    # Look for Python with lz4 in the store
+    # This is a heuristic - we look for python* directories that might have lz4
+    try:
+        result = subprocess.run(
+            ["which", "python3"],
+            capture_output=True,
+            text=True
+        )
+        python_path = result.stdout.strip()
+        if python_path and "/nix/store" in python_path:
+            # Check if this Python has lz4
+            result = subprocess.run(
+                [python_path, "-c", "import lz4.frame; print('ok')"],
+                capture_output=True,
+                text=True
+            )
+            if result.returncode == 0:
+                return python_path
+    except:
+        pass
+    
+    return None
+
+# Colors for output
+RED = '\033[0;31m'
+GREEN = '\033[0;32m'
+YELLOW = '\033[1;33m'
+BLUE = '\033[0;34m'
+NC = '\033[0m'  # No Color
+
+
+def find_firefox_profile():
+    """Find the default Firefox profile directory."""
+    if sys.platform == "darwin":
+        profile_dir = Path.home() / "Library/Application Support/Firefox"
+    elif sys.platform.startswith("linux"):
+        profile_dir = Path.home() / ".mozilla/firefox"
+    else:
+        print(f"{RED}Unsupported OS: {sys.platform}{NC}", file=sys.stderr)
+        return None
+    
+    profiles_ini = profile_dir / "profiles.ini"
+    
+    if not profiles_ini.exists():
+        print(f"{RED}Firefox profiles.ini not found at: {profiles_ini}{NC}", file=sys.stderr)
+        print(f"{YELLOW}Make sure Firefox has been run at least once.{NC}", file=sys.stderr)
+        return None
+    
+    # Find the default profile
+    # Parse profiles.ini by sections
+    profile_path = None
+    current_section = None
+    current_path = None
+    is_default = False
+    
+    with open(profiles_ini, 'r') as f:
+        for line in f:
+            line = line.strip()
+            if line.startswith('[') and line.endswith(']'):
+                # Save previous section if it was default
+                if is_default and current_path:
+                    profile_path = current_path
+                    break
+                # Start new section
+                current_section = line
+                current_path = None
+                is_default = False
+            elif line.startswith("Path="):
+                current_path = line.split("=", 1)[1].strip()
+            elif line == "Default=1":
+                is_default = True
+    
+    # Check if last section was default
+    if is_default and current_path and not profile_path:
+        profile_path = current_path
+    
+    # Fallback: get the first profile with Path=
+    if not profile_path:
+        with open(profiles_ini, 'r') as f:
+            for line in f:
+                if line.startswith("Path="):
+                    profile_path = line.split("=", 1)[1].strip()
+                    break
+    
+    if not profile_path:
+        return None
+    
+    if Path(profile_path).is_absolute():
+        return Path(profile_path)
+    else:
+        return profile_dir / profile_path
+
+
+def decompress_lz4(file_path):
+    """Decompress a Mozilla lz4 file and return the JSON content.
+    
+    Firefox uses a custom format:
+    - 8 bytes: "mozLz40\0" header
+    - 4 bytes: uncompressed size (little-endian uint32)
+    - rest: lz4 frame compressed data
+    """
+    # Try Python lz4 library first (supports Mozilla format)
+    # First try with current Python
+    try:
+        import lz4.block
+        import struct
+        with open(file_path, 'rb') as f:
+            # Skip the 8-byte Mozilla header
+            header = f.read(8)
+            if header[:7] == b'mozLz40':
+                # Read the 4-byte uncompressed size (little-endian uint32)
+                size_bytes = f.read(4)
+                if len(size_bytes) == 4:
+                    uncompressed_size = struct.unpack('<I', size_bytes)[0]
+                    # Read the rest (lz4 compressed data)
+                    compressed_data = f.read()
+                    # Try block decompression with the uncompressed size
+                    try:
+                        decompressed = lz4.block.decompress(compressed_data, uncompressed_size=uncompressed_size)
+                        return decompressed.decode('utf-8')
+                    except:
+                        # Try without size hint
+                        try:
+                            decompressed = lz4.block.decompress(compressed_data)
+                            return decompressed.decode('utf-8')
+                        except:
+                            # Try frame decompression as fallback
+                            try:
+                                import lz4.frame
+                                decompressed = lz4.frame.decompress(compressed_data)
+                                return decompressed.decode('utf-8')
+                            except:
+                                pass
+                else:
+                    return None
+            else:
+                # Try decompressing the whole file
+                f.seek(0)
+                compressed_data = f.read()
+                try:
+                    decompressed = lz4.block.decompress(compressed_data)
+                    return decompressed.decode('utf-8')
+                except:
+                    import lz4.frame
+                    decompressed = lz4.frame.decompress(compressed_data)
+                    return decompressed.decode('utf-8')
+    except ImportError:
+        # Try to find and use Nix Python with lz4
+        nix_python = find_nix_python()
+        if nix_python:
+            try:
+                with open(file_path, 'rb') as f:
+                    header = f.read(8)
+                    if header[:7] == b'mozLz40':
+                        compressed_data = f.read()
+                    else:
+                        f.seek(0)
+                        compressed_data = f.read()
+                
+                # Use Nix Python to decompress
+                result = subprocess.run(
+                    [nix_python, "-c", f"""
+import lz4.frame
+import sys
+with open('{file_path}', 'rb') as f:
+    header = f.read(8)
+    if header[:7] == b'mozLz40':
+        data = f.read()
+    else:
+        f.seek(0)
+        data = f.read()
+    decompressed = lz4.frame.decompress(data)
+    sys.stdout.buffer.write(decompressed)
+"""],
+                    capture_output=True,
+                    check=True
+                )
+                return result.stdout.decode('utf-8')
+            except Exception as e:
+                print(f"{YELLOW}Nix Python lz4 error: {e}{NC}", file=sys.stderr)
+        # Python lz4 library not available, try command-line tool
+        pass
+    except Exception as e:
+        print(f"{YELLOW}Python lz4 library error: {e}, trying command-line tool...{NC}", file=sys.stderr)
+    
+    # Fallback to command-line lz4 (may not work with Mozilla format)
+    try:
+        with open(file_path, 'rb') as f:
+            # Read and verify the Mozilla header (8 bytes: "mozLz40" + null byte)
+            header = f.read(8)
+            if header[:7] != b'mozLz40':
+                print(f"{YELLOW}Warning: File doesn't have Mozilla lz4 header{NC}", file=sys.stderr)
+                return None
+            
+            # Skip size bytes (4 bytes)
+            f.read(4)
+            
+            # Read the rest of the file (lz4 frame compressed data)
+            compressed_data = f.read()
+            
+            # Try command-line lz4 (may not work with Mozilla format)
+            result = subprocess.run(
+                ["lz4", "-dc"],
+                input=compressed_data,
+                capture_output=True,
+                check=False
+            )
+            
+            if result.returncode == 0:
+                return result.stdout.decode('utf-8')
+            else:
+                print(f"{YELLOW}Command-line lz4 doesn't support Mozilla format.{NC}", file=sys.stderr)
+                print(f"{YELLOW}To read session files, install Python lz4 library:{NC}", file=sys.stderr)
+                print(f"{GREEN}  pip install lz4{NC}", file=sys.stderr)
+                print(f"{YELLOW}Or use RDP method (see instructions when running 'python3 scripts/firefox-tabs.py rdp'):{NC}", file=sys.stderr)
+                return None
+    except subprocess.CalledProcessError as e:
+        print(f"{YELLOW}Error decompressing {file_path}: {e}{NC}", file=sys.stderr)
+        if e.stderr:
+            print(f"{YELLOW}Error details: {e.stderr.decode()}{NC}", file=sys.stderr)
+        return None
+    except FileNotFoundError:
+        print(f"{YELLOW}lz4 tool not found. Install it to read session files.{NC}", file=sys.stderr)
+        if sys.platform == "darwin":
+            print(f"{YELLOW}On macOS: brew install lz4{NC}", file=sys.stderr)
+        else:
+            print(f"{YELLOW}On NixOS: nix-env -iA nixpkgs.lz4{NC}", file=sys.stderr)
+        return None
+    except Exception as e:
+        print(f"{RED}Unexpected error: {e}{NC}", file=sys.stderr)
+        return None
+
+
+def get_tabs_from_session(profile_dir):
+    """Extract tab information from Firefox session files."""
+    profile_path = Path(profile_dir)
+    session_file = profile_path / "sessionstore.jsonlz4"
+    backup_dir = profile_path / "sessionstore-backups"
+    
+    # Try current session file
+    if session_file.exists():
+        print(f"{BLUE}Reading from current session...{NC}")
+        content = decompress_lz4(session_file)
+        if content:
+            return parse_session_json(content)
+    
+    # Try backup files (including recovery.jsonlz4 which is updated while Firefox is running)
+    if backup_dir.exists():
+        # Check for recovery.jsonlz4 first (most recent when Firefox is running)
+        recovery_file = backup_dir / "recovery.jsonlz4"
+        if recovery_file.exists():
+            print(f"{BLUE}Reading from recovery session (Firefox is running)...{NC}")
+            content = decompress_lz4(recovery_file)
+            if content:
+                return parse_session_json(content)
+        
+        # Fallback to other backup files
+        backup_files = sorted(backup_dir.glob("*.jsonlz4"), key=lambda p: p.stat().st_mtime, reverse=True)
+        if backup_files:
+            print(f"{BLUE}Reading from backup session...{NC}")
+            content = decompress_lz4(backup_files[0])
+            if content:
+                return parse_session_json(content)
+    
+    print(f"{YELLOW}No session files found in profile directory{NC}", file=sys.stderr)
+    return None
+
+
+def parse_session_json(json_content):
+    """Parse Firefox session JSON and extract tab information."""
+    try:
+        data = json.loads(json_content)
+        windows = data.get('windows', [])
+        
+        tabs_info = []
+        for window_idx, window in enumerate(windows):
+            tabs = window.get('tabs', [])
+            for tab_idx, tab in enumerate(tabs):
+                entries = tab.get('entries', [])
+                if entries:
+                    # Last entry is usually the current one
+                    current_entry = entries[-1]
+                    url = current_entry.get('url', 'N/A')
+                    title = current_entry.get('title', 'N/A')
+                    tabs_info.append({
+                        'window': window_idx + 1,
+                        'tab': tab_idx + 1,
+                        'title': title,
+                        'url': url
+                    })
+        
+        return tabs_info
+    except json.JSONDecodeError as e:
+        print(f"{RED}Error parsing session JSON: {e}{NC}", file=sys.stderr)
+        return None
+    except Exception as e:
+        print(f"{RED}Error processing session data: {e}{NC}", file=sys.stderr)
+        return None
+
+
+def is_firefox_running():
+    """Check if Firefox is currently running."""
+    try:
+        if sys.platform == "darwin":
+            result = subprocess.run(
+                ["pgrep", "-f", "firefox|Firefox"],
+                capture_output=True,
+                text=True
+            )
+            return result.returncode == 0
+        else:
+            result = subprocess.run(
+                ["pgrep", "firefox"],
+                capture_output=True,
+                text=True
+            )
+            return result.returncode == 0
+    except:
+        return False
+
+
+def get_tabs_via_rdp(port=6000):
+    """Get tab information via Firefox Remote Debugging Protocol."""
+    url = f"http://localhost:{port}/json/list"
+    
+    try:
+        with urlopen(url, timeout=2) as response:
+            data = json.loads(response.read())
+            return data
+    except URLError:
+        print(f"{YELLOW}Firefox remote debugging not available on port {port}{NC}", file=sys.stderr)
+        if is_firefox_running():
+            print(f"{YELLOW}Firefox is running. To enable remote debugging:{NC}", file=sys.stderr)
+            print(f"{GREEN}  1. Open Firefox and go to: about:config{NC}", file=sys.stderr)
+            print(f"{GREEN}  2. Set these preferences:{NC}", file=sys.stderr)
+            print(f"{GREEN}     - devtools.debugger.remote-enabled = true{NC}", file=sys.stderr)
+            print(f"{GREEN}     - devtools.debugger.remote-port = {port}{NC}", file=sys.stderr)
+            print(f"{GREEN}  3. Restart Firefox{NC}", file=sys.stderr)
+        else:
+            # Find Firefox binary
+            firefox_bin = None
+            try:
+                if sys.platform == "darwin":
+                    # Try to find Firefox in Nix store
+                    result = subprocess.run(
+                        ["find", "/nix/store", "-name", "firefox", "-type", "f", "-path", "*/MacOS/*"],
+                        capture_output=True,
+                        text=True,
+                        timeout=5
+                    )
+                    if result.returncode == 0 and result.stdout.strip():
+                        firefox_bin = result.stdout.strip().split('\n')[0]
+            except:
+                pass
+            
+            if firefox_bin:
+                print(f"{YELLOW}To enable, start Firefox with:{NC}", file=sys.stderr)
+                print(f"{GREEN}  {firefox_bin} --start-debugger-server={port}{NC}", file=sys.stderr)
+            else:
+                print(f"{YELLOW}To enable, start Firefox with:{NC}", file=sys.stderr)
+                print(f"{GREEN}  firefox --start-debugger-server={port}{NC}", file=sys.stderr)
+            print(f"{YELLOW}Or add to Firefox preferences (about:config):{NC}", file=sys.stderr)
+            print(f"{GREEN}  devtools.debugger.remote-enabled = true{NC}", file=sys.stderr)
+            print(f"{GREEN}  devtools.debugger.remote-port = {port}{NC}", file=sys.stderr)
+        return None
+    except Exception as e:
+        print(f"{RED}Error connecting to RDP: {e}{NC}", file=sys.stderr)
+        return None
+
+
+def print_tabs(tabs_info, method="session"):
+    """Print tab information in a readable format."""
+    if not tabs_info:
+        return
+    
+    if method == "rdp":
+        for tab in tabs_info:
+            tab_id = tab.get('id', 'N/A')
+            title = tab.get('title', 'N/A')
+            url = tab.get('url', 'N/A')
+            print(f"Tab {tab_id}: {title}")
+            print(f"  URL: {url}")
+    else:
+        for tab in tabs_info:
+            window = tab.get('window', '?')
+            tab_num = tab.get('tab', '?')
+            title = tab.get('title', 'N/A')
+            url = tab.get('url', 'N/A')
+            print(f"Window {window}, Tab {tab_num}: {title}")
+            print(f"  URL: {url}")
+
+
+def main():
+    method = sys.argv[1] if len(sys.argv) > 1 else "session"
+    rdp_port = int(sys.argv[2]) if len(sys.argv) > 2 and sys.argv[1] in ["rdp", "r", "both", "b"] else 6000
+    
+    if method in ["session", "s"]:
+        print(f"{GREEN}Getting tabs from session files...{NC}")
+        profile_dir = find_firefox_profile()
+        if profile_dir:
+            tabs_info = get_tabs_from_session(profile_dir)
+            if tabs_info:
+                print_tabs(tabs_info, "session")
+        else:
+            sys.exit(1)
+    
+    elif method in ["rdp", "r"]:
+        print(f"{GREEN}Fetching tabs via Remote Debugging Protocol...{NC}")
+        tabs_info = get_tabs_via_rdp(rdp_port)
+        if tabs_info:
+            print_tabs(tabs_info, "rdp")
+    
+    elif method in ["both", "b"]:
+        print(f"{GREEN}=== Session Files Method ==={NC}")
+        profile_dir = find_firefox_profile()
+        if profile_dir:
+            tabs_info = get_tabs_from_session(profile_dir)
+            if tabs_info:
+                print_tabs(tabs_info, "session")
+        
+        print(f"\n{GREEN}=== Remote Debugging Protocol Method ==={NC}")
+        tabs_info = get_tabs_via_rdp(rdp_port)
+        if tabs_info:
+            print_tabs(tabs_info, "rdp")
+    
+    else:
+        print("Usage: python3 firefox-tabs.py [method] [rdp_port]")
+        print("")
+        print("Methods:")
+        print("  session, s  - Read from Firefox session files (default)")
+        print("  rdp, r      - Use Remote Debugging Protocol")
+        print("  both, b     - Try both methods")
+        print("")
+        print("Examples:")
+        print("  python3 firefox-tabs.py                    # Use session files (default)")
+        print("  python3 firefox-tabs.py session            # Use session files")
+        print("  python3 firefox-tabs.py rdp                # Use RDP on default port 6000")
+        print("  python3 firefox-tabs.py rdp 9222           # Use RDP on port 9222")
+        print("  python3 firefox-tabs.py both              # Try both methods")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()
+