Then click upload and your file will be sent to Mozillas server.
Anyone can share file sizes up to 1GB without logging in.
Currently, Firefox Send allows links to remain for as long as 7 days or 100 downloads.
At present, it is mandatory for you to choose both a timeframe and a download limit.
The file link will expire depending on what comes first.
By default, files are stored for a maximum of either 24 hours or 7 days.
Firefox Send is currently available through the send.firefox.com website.
source: www.techworm.net