Search :: Add-ons for Thunderbird

British English Dictionary (Marco Pinto)

A fork of Mark Tyndall's add-on, based on David Bartlett's
British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey.

V3.3.2 has 140 000+ new words and also fixes.

Rated 5 out of 5 stars (83)

176,948 users

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English United States Dictionary

English United States (en-US) Dictionary as shipped with Thunderbird 115 ESR and Firefox 115 ESR.

Rated 4 out of 5 stars (39)

72,032 users

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Deutsches Wörterbuch

Deutsches Wörterbuch (neue Rechtschreibung) für die Rechtschreibprüfung in Mozilla-Produkten

Rated 4 out of 5 stars (82)

238,174 users

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Diccionario de Español/España

Rated 4 out of 5 stars (167)

67,978 users

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This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Rated 4 out of 5 stars (618)

16,341 users

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gContactSync Requires Restart

Synchronizes contacts & groups between Thunderbird and Google Contacts.

Rated 4 out of 5 stars (416)

16,636 users

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Dizionario italiano

Add support for Italian to spellchecking

Rated 4 out of 5 stars (71)

82,582 users

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Woordenboek Nederlands

Woordenboek Nederlands met de woordenlijst van OpenTaal.

Rated 3 out of 5 stars (70)

24,425 users

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Mail Redirect Requires Restart

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (144)

3,272 users

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CompactHeader Requires Restart

Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.

Rated 5 out of 5 stars (191)

17,227 users

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Diccionario español Argentina

Diccionario ortográfico de español de Argentina.

Rated 4 out of 5 stars (93)

15,459 users

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ReminderFox Requires Restart

ReminderFox zeigt und verwaltet Listen von Erinnerungen und Aufgaben. ReminderFox nutzt einfach zu verwendende Listen mit Warnungen/Alarmen, um Sie an alle Ihre wichtigen Termine zu erinnern.
Reminderfox synchronisiert auch mit anderen Kalendern

Rated 4 out of 5 stars (550)

3,187 users

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Український словник

Український словник перевірки орфографії

Rated 5 out of 5 stars (57)

12,826 users

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Diccionari català (general)

Diccionari ortogràfic lliure català (versió general).

Rated 4 out of 5 stars (40)

14,193 users

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Keep in Taskbar Requires Restart

A simple plugin that makes the Close button behave exactly like the Minimize one.

Rated 4 out of 5 stars (33)

1,026 users

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Canadian English Dictionary

For some reason, Mozilla doesn't have a Canadian localization team, but I know that even the British dictionary doesn't quite cut it for the truly patriotic.

Rated 4 out of 5 stars (82)

9,793 users

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Deutsches Wörterbuch (de-DE), alte Rechtschreibung

Wörterbuch deutsch (alte Rechtschreibung) für die Rechtschreibprüfung in Firefox und Thunderbird + alte Rechtschreibung + bisherige Rechtschreibung + klassische Rechtschreibung + bewährte Rechtschreibung + unreformierte Qualitätsrechtschreibung +

Rated 5 out of 5 stars (20)

9,647 users

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