FireFTP is a free, open source

Open source

The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...

, cross-platform FTP client for Mozilla Firefox

Mozilla Firefox

Mozilla Firefox is a free and open source web browser descended from the Mozilla Application Suite and managed by Mozilla Corporation. , Firefox is the second most widely used browser, with approximately 25% of worldwide usage share of web browsers...

 in the form of an add-on. It supports FTP, FTPS

FTPS

FTPS is an extension to the commonly used File Transfer Protocol that adds support for the Transport Layer Security and the Secure Sockets Layer cryptographic protocols....

, and SFTP

SSH file transfer protocol

In computing, the SSH File Transfer Protocol is a network protocol that provides file access, file transfer, and file management functionality over any reliable data stream...

. FireFTP is charityware and runs on platforms that Firefox supports.

Features

FireFTP is activated from the Tools menu, opening a two-pane view within a Firefox window. The pane on the left-hand side shows the local file system, a tree of directories and a list of files in the current directory. The pane on the right shows the remote FTP server. Between the panes there are two buttons with arrows, one for upload and the other for download.

To connect to an FTP server, one can either enter a site name directly ("QuickConnect") or use the Account Manager to make FireFTP remember settings about that particular site, including the username and password, security settings (encryption schemes), passive mode, initial directories to change to upon connection, and case changes to be performed in file names after transmissions.

FireFTP supports caching directory listings, and it can also do a comparison between a local directory tree and the remote one. It can connect via proxy server

Proxy server

In computer networks, a proxy server is a server that acts as an intermediary for requests from clients seeking resources from other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource available from a different server...

s and it is able to automatically reconnect after disconnection. It can also be set to intercept all ftp:// links in Firefox (making them open within FireFTP).

As of 0.95, FireFTP offers the functionality to keep upload/download timestamps in sync.

Other

• FireFTP's layout is similar to that of WS FTP
  WS FTP
  WS_FTP is an FTP client produced by the American company Ipswitch, Inc. for the Windows operating systems.WS_FTP is one of the oldest Shareware FTP clients still around today dating back to the early 90's. It was originally developed in 1993 by John A. Junod, who sold the marketing rights to...
  
  .
• Over eleven million people downloaded FireFTP from the Firefox Add-ons site (as of 2008).
• It also appears on the list of recommended extensions.
• It is not able to handle files larger than 4GB, and hence is not able to transfer (full-size) DVDs.