Add-ons
Message and News Reading
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Account Colors
Requires Restart
Associates user-defined colors with POP3/IMAP accounts and identities. Applies these colors to accounts, identities, folders, message list, message headers and compose headers. Users will always know which accounts/identities they are working with.
Google Search for Thunderbird
Requires Restart
Adds Google Search to Thunderbird
Mailbox Alert
Mailbox Alert allows you to specify, for each seperate mail folder, a message, sound and/or a system command that will be executed when new mail is found there. ...
Remove Duplicate Messages
Requires Restart
If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."
Allow HTML Temp
Allows to have HTML temporarily enabled (and displayed) in the currently selected message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (according to your settings).
P7MON
Show All Body Parts
Requires Restart
Enable the View | Message Body As | All Body Parts message display mode.
Quote Colors
Requires Restart
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
Edit Email Subject (EES)
Folder Pane View Switcher
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.
Quick Folder Move
When filing messages, a search box will show up allowing you to quickly enter the folder name you want to move to.
If no search term is entered, a list of recent folders will show up instead.
Google Docs Viewer (PDF, DOCX, PPTX, XLSX, etc...)
Requires Restart
View publicly-accessible PDF, DOCX, PPTX, XLSX, among other files online with Google Docs by only 2 clicks. Click as usual for your default viewer. Support bookmarked URLs. Security and your explicit viewing intention are always honored.
Nostalgy
Requires Restart
Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.
Signature /Auto Paste /Prefill Fourms
Requires Restart
Makes everyday entries to forms & forums simpler!
Add a sig. with just a Rclick of the mouse and select 'Add Sig.' from the context menu.
(Please, note: What you see in the pic is only an example. ThoseRMine Sorry, you have to make your own tabs. )
ThunderBrowse
Requires Restart
Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!
ThreadVis
Displays a small graphic visualising the context (thread) of the currently selected email.
Image Zoom (ugly fixes)
ReFwdFormatter
Remove the ">" prefix from quote when you make a reply.
[Source code] https://github.com/isshiki/ReFwdFormatter
To create your own collections, you must have a Mozilla Add-ons account.
