Firefox Send lets you share files with end-to-end encryption and a link that automatically expires. So you can keep what you share private and make sure your stuff doesn’t stay online forever. Firefox Send makes it simple to share large file sizes - perfect for sharing professional design files or collaborating on a presentation with co-workers. With Send you can share file sizes up to 1GB quickly. Sign up for a free Firefox account to send files up to 2.5GB.