Folders and Filters
Toggle Folderpane View Requires Restart
This addon provides a toolbar button for toggling between the "All" and "Favorite" views in the folderpane.
Purge Events Plus Requires Restart
Purge events from Sunbird and Lightning files and thereby cleanes the calendar
Collapsed Unread Requires Restart
Shows unread email count for collapsed folders even if the unread mails are in subfolders.
folderplus Requires Restart
This extension adds some basic missing features about folders.
Move mails to their conversation folder. Navigate to folder with new keyboard shortcuts.
Folder Levels Requires Restart
Rank your email folders by how much you care about them, and hide the ones you don't need right now.
SavedSearchThemAll Requires Restart
A Thunderbird extension to automagically extend all the saved searches to all the foders!
Sieve Out of Office New Requires Restart
A Thunderbird plugin to allow one to set out of office messages and / or redirect emails to colleagues via a easy to use pop-up dialog.
This Out of Office plugin requires that your POP3 / IMAP server also have a sieve service.
IMAP Draft Unread Requires Restart
This is a Thunderbird addon that lets you customize the behavior of the IMAP draft unread messages. No more new mail notifications for your drafts!!
SavedSearchInSubFolders Requires Restart
This addon allows virtual folders (saved searches) to automatically process all subfolders of their selected target folders.
The search targets are updated automatically whenever a new folder is added, or a virtual folder is updated.
Synchronize your favorite RSS sources with Thundebird and Feedly
This addon extends filtering to read messages downloaded during an IMAP synchronization (bug 308148)
Automatically marks all messages in the [Gmail] folder and all subfolders as read.
Shedule Filters Requires Restart
Sheduled run message filters
Запуск фильтров сообщений по расписанию
Protected E-mail Addresses Requires Restart
Generates protected and disposable e-mail addresses and filters junk mail sent to invalid addresses.
QuickFilter Watched Threads Requires Restart
Adds a filter to show only watched threads
Quick Folder Key Navigation Requires Restart
This extension makes it possible to quickly navigate to a particular folder in the folder pane simply by typing the first few letters of the folder name when the folder pane has focus.
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.
attachment column in search result list Requires Restart
Show the column for attachments in search results list. General search (edit-> search -> search emails) does not show by default if a message has attachments.
This addon adds this column, just as in a normal folder view.