Welcome to Thunderbird Add-ons.

Add extra features and styles to make Thunderbird your own.

Close

On the go?

Check out our Mobile Add-ons site.

Close

Jonathan Kamens

About me

Developer Information
Name Jonathan Kamens
Homepage http://stuff.mit.edu/~jik/
User since July 9, 2010
Number of add-ons developed 11 add-ons
Average rating of developer's add-ons Rated 5 out of 5 stars

Add-ons I've created

Send Later Requires Restart

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

Rated 5 out of 5 stars (139)
68,964 users

Download Now

Dorando keyconfig Requires Restart

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

Rated 5 out of 5 stars (47)
4,544 users

Download Now

Show All Body Parts

Enable the View | Message Body As | All Body Parts message display mode.

Rated 5 out of 5 stars (19)
7,467 users

Download Now

Folder Pane View Switcher Requires Restart

Folder view arrows; switch to "All Folders" view when hovering during drag & drop; allow user to select which views are enabled or tied to the view arrows.

Rated 5 out of 5 stars (46)
8,244 users

Download Now

IMAP Received Date Requires Restart

Make the “Received” column in IMAP folders show when messages were actually received.

Rated 5 out of 5 stars (11)
2,331 users

Download Now

My Reviews

ToggleReplied

Rated 5 out of 5 stars

by Jonathan Kamens on Aug. 19, 2017 ·

This is a great add-on, but unfortunately it's incompatible with the current versions of Thunderbird and SeaMonkey and its maintainer has disappeared: the web site is down and his email address bounces.

I've taken over maintenance of the add-on and created a new version which is compatible with current Thunderbird and SeaMonkey:

https://addons.mozilla.org/thunderbird/addon/togglereplied-2/

Quick Locale Switcher

Rated 1 out of 5 stars

by Jonathan Kamens on Aug. 10, 2017 ·

Unfortunately there are API changes in Firefox and Thunderbird 57 which break this add-on. I attempted to email a patch to the maintainer of the add-on, but my email bounced, so the add-on may be unsupported (and therefore permanently broken) at this point.

Custom Buttons

Rated 1 out of 5 stars

by Jonathan Kamens on June 28, 2017 ·

Buttons don't do anything when clicked in current Thunderbird version. Numerous errors in error console from the add-on on startup and when creating or editing buttons.

Emoji Menu

Rated 4 out of 5 stars

by Jonathan Kamens on June 9, 2017 ·

The emojis being inserted in the new version are bigger and more attractive and therefore superior.

However, they appear to be inserted in a weird way which causes the editor, at least on Linux (Thunderbird 52.1.1) to behave very oddly.

Try this:

1. Insert an emoji at the beginning of the message body.

2. Note that your text cursor disappears. Usually when this happens when you insert an image, you can make it come back by unfocusing the window and focusing again, but that doesn't work here. So, the disappearing cursor is a problem.

3. Try to move your cursor before the emoji you just typed so that you can add text before it. It's impossible.

4. Backspace to erase the emoji, then type ctrl-z to bring it back. You can't -- undo doesn't work.

I'm sure that all this is at least as much the fault of the editor as it is of the add-on, but it's still all a problem.

Send Later (old)

Rated 5 out of 5 stars

by Jonathan Kamens on July 9, 2010 ·

I have ported this add-on to Thunderbird 3.1. See "Send Later 3" at https://addons.mozilla.org/en-US/thunderbird/addon/195275/ .