Miscellaneous

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Add-on Update Checker Requires Restart

Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.

Rated 4 out of 5 stars (56)
19,209 users
Added July 9, 2011

SmartTemplate4 Requires Restart

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (53)
14,800 users
Added June 23, 2011

Web Cache View Plus Proxy Requires Restart

Displays a web cache and/or web proxy view of a web page. You can call it from menu of tab, page context, link context and maybe while page loading.

Rated 3 out of 5 stars (5)
646 users
Added May 7, 2011

SolusVM VPS Monitor Requires Restart

Status Monitor for SolusVM-backed VPS.

Not yet rated
26 users
Added April 7, 2011

TabSubmit

Lets the user direct the submission of a form to a new tab or window. [Bug #17754]

Rated 5 out of 5 stars (14)
1,506 users
Added March 28, 2011

Flexible Identity Requires Restart

Selects an identity based on the recipients list when sending an email

Rated 4 out of 5 stars (27)
1,081 users
Added March 19, 2011

GNOMErunner/GTK for Seamonkey 2.x Requires Restart

GNOMErunner/GTK - a classic unix theme for Seamonkey 2 (aka suiterunner)

using the GTK+ stock items and icons from the gnome iconset, resulting in a more consistent desktop integration on Unix.

Rated 4 out of 5 stars (2)
0 users
Added January 4, 2011

EzStylist Requires Restart

Allows including CSS when composing e-mails.

Rated 4 out of 5 stars (1)
0 users
Added October 29, 2010

Addons Manager Hilite

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (19)
449 users
Added August 31, 2010

Highlighter Requires Restart

Quickly highlight some text in Thunderbird message composing windows.

Rated 4 out of 5 stars (48)
9,144 users
Added August 28, 2010

MDN Interface Documentation Generator Requires Restart

Generate MDN Interface Documentation from IDL files.

Not yet rated
2 users
Added July 29, 2010

Send Later Requires Restart

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (91)
52,856 users
Added July 9, 2010

1-click Online Document View Requires Restart

Open DOC, DOCX, PDF, PPT, PPTX and TIFF files linked in any webpage directly with Google Docs viewer using "1-click Online Document View", with a single left-click of your mouse / trackpad!!

Rated 4 out of 5 stars (5)
1,259 users
Added June 24, 2010

Thunderbird Integration for JIRA Requires Restart

This is a plugin for Thunderbird 3.3+ which is able to create Atlassian Jira issues out of e-mails or add the content of an e-mail as a comment on an Jira issue.

Rated 3 out of 5 stars (13)
330 users
Added June 21, 2010

Contact Photos Requires Restart

Displays contact photos in the message header.

Rated 4 out of 5 stars (24)
1,908 users
Added January 5, 2010

Year view Requires Restart

Year view for calendar.

Rated 4 out of 5 stars (47)
3,394 users
Added September 22, 2009

Mailopen Requires Restart

Open an email file from the commandline

Rated 1 out of 5 stars (1)
10 users
Added August 20, 2009

ToggleReplied Requires Restart

Enables toggling of Replied/Forwarded states of messages.

Rated 5 out of 5 stars (7)
616 users
Added January 31, 2009

FiltaQuilla Requires Restart

Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.

Rated 4 out of 5 stars (55)
9,019 users
Added December 18, 2008

ToneQuilla Requires Restart

Adds a new action to mail filters to allow playing a particular sound when the filter matches. Also includes several sample sound files.

Rated 4 out of 5 stars (16)
2,568 users
Added December 11, 2008