Add-ons
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Simple Template
You will be able to create and automatically insert templates for each account.
Simple Week View
Single Domain
Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.
SJCall
Requires Restart
SJCall is a beta version of a VoIP extension enabling you to place telephone calls directly from the Mozilla applications using SJphone, the world-leading Internet softphone...
Skiff Mail
Integrates a Skiff Mail button into the Spaces toolbar. It opens the Skiff Mail website in a new tab.
Skiff Mail - Quick Access
Quick Access to Skiff Mail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
skypewebapp
Adds browser action icon to toolbar to open Skype. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/skype/
Skyrock by RaouF
Requires Restart
Blogs, profils, rencontres, groupes,photos,.. Avec Skyrock.
Slack - Quick Access
Quick Access to Slack in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Slideshow
Requires Restart
Displays a slideshow of picture attachments. When email has attached pictures, it displays "View as Slideshow" button next to the attachment. Button click pops a slideshow window with all the images, allowing you to zoom in/out, save...
Smart Folders For Single Account
Adds smart folders (unified folders) for single account.
By default smart folders available only for two and more accounts.
Smart Quotes
smartCompose
SmartFilters
Requires Restart
Tired of writing a lot of filters? Install SmartFilters now to organise your mailbox automatically. It can sort out your mailing lists and robot emails.
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
SmartSave Thunderbird Extension
Requires Restart
Now you can export your messages in a smarter way! You can export all folders and subfolder esaily from your local folder or from your IMAP...
SmartTemplate
Requires Restart
This Add-on provides the smart and simple templates and abilities to customize the quote header flexibly.
Templates can be inserted automatically at the new/repling/forwarding message. A different template can be used respectively per account.
SmartTemplates
Featured
SmartTemplates offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.
SmileyfixerTo create your own collections, you must have a Mozilla Add-ons account.
