Thunderbird Add-Ons
There are plenty of decent email applications out there. I use Mozilla Thunderbird. Its behavior can be changed through the many add-ons available for it. It's also cross platform. I can install an extension in Windows XP and boot into Ubuntu, where the new extension will be waiting. Here's a list of add-ons I've got installed. That means I either recommend, use, used, or plan to use it. I'll try to clarify the difference in the future. I'd be happy to discuss any of them.
List made by InfoLister
- addressContext
http://addresscontext.mozdev.org/
An extension to add addressbook-related options to the context menu - Attachment Extractor
http://www.eviljeff.com/?page=moz-extensions
Extracts all attachments from selected messages. - Auto Address Cleaner
http://markopee.blogspot.com/2008/02/plain-address.html
Remove comment, display name from addresses before sending mail. - Birthday Reminder
Birthday Reminder shows a list of upcoming birthdays for all contacts in thunderbird's addressbook. The date of birth of a contact has to be provided in the custom fields of the contact data ("Custom1" by default, configurable). If a date of birth is provided in this field, the contact's name is added to the list along with the number of days until the birthday and the age of the contact. - Bork Bork Bork!
http://www.snert.com/ - Chrome List
http://www.gijsk.com/
Lets you take a peek at the files under the hood of your application and add-ons. - Contacts Sidebar
http://jpeters.no-ip.com/extensions/?page=tb_cs
Displays the address books in a sidebar in the 3-pane-window. - Dict
http://dict.mozdev.org/
Looks up words in online dictionaries (DICT servers) - DictionarySearch
http://dictionarysearch.mozdev.org/
Looks up selected word in an online dictionary - Enigmail
http://enigmail.mozdev.org/
OpenPGP message encryption and authentication - Extension List Dumper
http://sogame.awardspace.com/
Dumps a list of the installed extensions. - FlashGot
http://flashgot.net
Enables single and massive ("all" and "selection") downloads using the most popular external download managers for Windows, Mac OS X, Linux and FreeBSD (dozens currently supported, see Extension's Home Page for details). FlashGot offers also a Build Gallery functionality which helps to synthetize full media galleries in one page from serial contents originally scattered on several pages, for easy and fast "download all". - FoxyTunes
http://www.foxytunes.com/
Control any media player from Firefox and more... - InfoLister
http://mozilla.doslash.org/infolister
Lists installed extensions and themes - Launchy
http://gemal.dk/mozilla/launchy.html
Open links and mailto's with external applications like Internet Explorer, Netscape, Opera, Outlook etc - Lightning
http://www.mozilla.org/projects/calendar/releases/lightning0.8.html
An integrated calendar for Thunderbird (build 2008033118) - mozPod
http://mozpod.mozdev.org
Sync Address Book with iPod. - ReminderFox
http://reminderfox.mozdev.org
Displays and manages reminders and ToDo's - withAttach
http://sogame.awardspace.com/
Warn you when you forget the attachments. - World Weather+
http://www.mrtech.com/extensions/
Display local weather information from around the world.
Page last updated: April 28, 2014.