WinSCP 
http://winscp.sourceforge.net/eng/download.php

Kompozer
https://sourceforge.net/projects/kompozer/

Filezilla ftp
http://filezilla-project.org 



Add-on til Thunderbird
-----------------------

Nostalgy / Nostalgy++
Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.
New Thunderbird: https://addons.thunderbird.net/en-us/thunderbird/addon/nostalgy_ng/  (Nostalgy++)
Old Thunderbird: https://addons.mozilla.org/en-US/thunderbird/addon/nostalgy/

Quicktext
https://addons.thunderbird.net/en-us/thunderbird/addon/quicktext/

mailredirect
http://mailredirect.mozdev.org/

Allow HTML Temp
http://www.thunderbird-mail.de/wiki/Allow_HTML_temp_(english)



Add-on til FireFox
-------------------

FireBug

Flashblock

Ghostry

Greasemonky

Table2Clipboard

TableTools2

Yslow