# Set the path to the directory containing the folders
$directoryPath = "$env:APPDATA\Mozilla\Firefox\Profiles"

# Get all folders in the directory
$folders = Get-ChildItem -Path $directoryPath -Directory

# Sort the folders by their last write time (modification date) in descending order
$latestFolders = $folders | Sort-Object LastWriteTime -Descending | Select-Object -First 2

# Calculate the date 7 days ago
$sevenDaysAgo = (Get-Date).AddDays(-7)

# Loop through all folders
foreach ($folder in $folders) {
    # Check if the folder is not in the list of latest folders
    if ($folder.FullName -notin $latestFolders.FullName) {
        # If the folder has "_old" suffix
        if ($folder.Name -like "*_old") {
            # Check if the folder was modified more than 7 days ago
            if ($folder.LastWriteTime -lt $sevenDaysAgo) {
                # Remove the folder
                Remove-Item -Path $folder.FullName -Recurse -Force -Confirm:$false -ErrorAction SilentlyContinue | Out-Null
            }
        } else {
            # Rename the folder by adding "_old" suffix
            $newName = "$($folder.Name)_old"
            Rename-Item -Path $folder.FullName -NewName $newName -Force -ErrorAction SilentlyContinue
        }
    }
}