# 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

# Loop through all folders and rename the ones that are not the latest
foreach ($folder in $folders) {
    if ($folder.FullName -notin $latestFolders.FullName) {
        $newName = "$($folder.Name)_old"
        Rename-Item -Path $folder.FullName -NewName $newName -Force -ErrorAction SilentlyContinue
    }
}