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Auto Zip Attachments
Requires Restart
Auto Zip Attachments allows you to easily compress (zip) attachments.
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.
Mail Summaries
Requires Restart
Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview
No Message Pane Sort
No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers, thus, locking the sorting order of your emails.
It is still possible to sort messages by ctrl-clicking the header.
Archive This
Requires Restart
Provides keyboard shortcuts for filing messages into nine configurable "favorite" folders using user-defined keys. Also provides a simple filter system with a keyboard shortcut to file the currently selected message(s) into the correct folder.
Unmangle Microsoft ATP Safelinks
Users of outlook.com and o365 who have Advanced Thread Protection enabled will have all URL's in emails changed to redirect them to an Microsoft filter before opening. This is a bad idea.
This plugin will change the URL back to the original value.
EnForward
Save your email into Evernote by forwarding it to Evernote email address.
Before you use it, you need to specify your Evernote email address (see the screenshot).
This function can be invoked by "Forward to Evernote" in the context menu.
Thunderbird Biff
Requires Restart
This add-on provides a visual indicator of new Thunderbird mail availability in supported clients (Firefox, Sunbird) and Thunderbird itself. Note: you MUST install this add-on in BOTH Thunderbird and supported clients as there are both client AND ser...
Mark All Read Button
Requires Restart
Adds toolbar buttons to Mark All emails as Read, Mark Thread as Read, and Goto Next Unread Thread.
QuoteCollapse
Requires Restart
Collapse and expand quotes.
Contributors: Stanimir Stamenkov, Dillinger
Show Address Only
Requires Restart
Adds columns to display Sender/Recipients mailaddress only.
Feedly Synchronizer
QuickArchiver
Get things done and clean up your inbox! When you move an e-mail the first time, QuickArchiver remembers the destination folder and lets you move more e-mails with a single click. You can apply rules by sender, recipient, and subject.
ThreadKey
Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view.
Copy Sent to Current
Allows to place a copy of sent messages (aka FCC) into the currently active folder or any other folder you choose, when you create the message. Usually the copies are placed into the 'Sent' folder. For replies, you may also move the original message.
Rspamd-spamness
Forward
Requires Restart
Add Inline / As Attachment option to Forward button and Message context menu.
Filter Button
Allows to add a button to the message header view toolbar that shows all filters that match the selected message, including manual and disabled filters. A click on the button allows to select a filter to run.
QuickFileMail
Requires Restart
QuickFileMail is a Thunderbird Add-On that helps to quickly file messages in the right folder.
SavedSearchThemAll
Requires Restart
A Thunderbird extension to automagically extend all the saved searches to all the foders!
To create your own collections, you must have a Mozilla Add-ons account.
