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Textmarker

Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)

Waardering 5 van 5 sterren (30)
37.833 gebruikers

Beperk niet-BCC ontvangers

Controleer of het aantal niet-BCC ontvangers een parameter niet overschrijdt.

Waardering 5 van 5 sterren (9)
771 gebruikers

Previous Colors

Quickly choose one of the previously selected colors for a message text

Waardering 5 van 5 sterren (8)
1.586 gebruikers

*cloud - FileLink for Nextcloud and ownCloud Aanbevolen

Upload large attachments to your Cloud and send the link by email

Waardering 5 van 5 sterren (47)
34.190 gebruikers

Address bulk copy (アドレス一括コピー) Vereist herstart

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
それを実現するためのアドオンです。

Waardering 5 van 5 sterren (10)
663 gebruikers

✨ Awesome Emoji Picker ✨

Modern, nice emoji picker that you can use to find and select emojis. It will be copied to your clipboard or even directly inserted into the e-mail, when you click on it.

You will certainly like it.

Waardering 5 van 5 sterren (6)
4.620 gebruikers

Macro Template

Macro Template is to replace mail templates with macros for date formatting.

Waardering 5 van 5 sterren (9)
804 gebruikers

StandardTexter

With the help of this Add-on, up to 99 pre-made texts (standard texts, text modules or even signatures) can be stored, which can then be retrieved and inserted when writing an e-mail.
The texts can be preformatted with HTML.

Waardering 5 van 5 sterren (9)
1.757 gebruikers

Stop Ignoring Reply:To Vereist herstart

Default "Reply" functionality pays attention to "Reply-To" in original email

Waardering 5 van 5 sterren (12)
107 gebruikers

Emoji

It permits just with a single click to copy an emoji.
There is a search-box and the "Most used emojis" section (the first one).

If you want to send feedback or report bug, please go to https://github.com/Sav22999/emoji

Waardering 5 van 5 sterren (11)
5.178 gebruikers

Uil voor Exchange

Uil verbindt Thunderbird met uw Exchange e-mailaccount

Waardering 5 van 5 sterren (190)
47.770 gebruikers

Mail Merge

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Waardering 5 van 5 sterren (225)
66.708 gebruikers

External Editor Revived

Edit emails in external editors such as Vim, Neovim, Emacs, etc.

Waardering 5 van 5 sterren (7)
317 gebruikers

Send Later

Echte functionaliteit voor ‘Later verzenden’ om het verzendtijdstip van een e-mailbericht te plannen.

Waardering 5 van 5 sterren (263)
100.629 gebruikers

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.

Waardering 5 van 5 sterren (4)
102 gebruikers

X-Unsent support

Adds support for the X-Unsent header.

Waardering 5 van 5 sterren (4)
72 gebruikers

FileLink for Plik

Plik no longer offers uploads without an account. So the add-in currently only works for self-hosted instances of the software. Currently I cannot promise a date for a fix. Sorry.

Waardering 5 van 5 sterren (4)
3.926 gebruikers

reply-all-auto-cc

When reply to all is used, move original To: recipients to Cc:
Also forces "Cc:" to be displayed on all new messages.

GitHub Repo: https://github.com/cyb3rmonk/reply-all-auto-cc

Waardering 5 van 5 sterren (4)
629 gebruikers

Transliterator

As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.

Waardering 5 van 5 sterren (94)
23 gebruikers

FileLink provider for Send

Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).

Waardering 5 van 5 sterren (14)
42.890 gebruikers