Adds an emoji task pane to Outlook (desktop and web) and Mozilla Thunderbird using the awesome JoyPixels (fka EmojiOne) emoji set. Features:
History
Categories
Select preferred skin tone
Search based on names and keywords
Works for HTML and text only emails
Chat (Thunderbird only)
Go to the add-in's page in the Office Store and click the Add button. Once you have added the add-in to your online account it will automatically be available from within Outlook Desktop also. If Outlook Desktop is open when you add the add-in online, you need to close and re-open Outlook Desktop for the add-in to become available there.
The add-in works only with Exchange, Office 365, and Outlook.com account types, not IMAP or POP accounts. This is a limitation of Outlook add-ins in general. From the documentation:
The client must be connected to an Exchange server or Office 365 using a direct connection. When configuring the client, the user must choose an Exchange, Office 365, or Outlook.com account type. If the client is configured to connect with POP3 or IMAP, add-ins will not load.
If you have both types of accounts configured, you can write an email using the Exchange-based account, then switch to the IMAP/POP account before sending by using the "From:" dropdown.
In Thunderbird, go to Tools → Add-ons → Extensions and search for "Emoji" in the search box in the upper right-hand corner. In the result list, click Install on the right side.
You can also download the add-on from its detail page at Mozilla and then install using the instructions here.
Once you have installed the add-on and restarted Thunderbird, the add-on will be available from the View menu when you write a message. The toolbar button won't be visible by default, but you can add it to the toolbar by customizing the toolbar.