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British-English Dictionary (GB)

A strict British-English spell checker dictionary for Firefox, Thunderbird and SeaMonkey. This dictionary only includes words conforming to the preferred standard of British-English spelling.

Rated 5 out of 5 stars (1)
21,363 users
Updated May 19, 2024

Český slovník pro kontrolu pravopisu (CC0)

Experimentální český slovník pro kontrolu pravopisu.

Not yet rated
3,550 users
Updated May 18, 2024

Correcteur français en orthographe simplifiée

Ce correcteur simplifie l'orthographe selon les propositions de l'association Érofa :
- Suppression des consonnes doubles inutiles : "doner"
- Simplification des mots d'origine grecque ('ph' > 'f', 'th' > 't', etc.)
- 'x' finaux remplacés par 's'

Not yet rated
1,011 users
Updated May 3, 2024

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)
164,348 users
Updated May 1, 2024

Auto Mark As Read

Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal

Rated 5 out of 5 stars (3)
177 users
Updated April 24, 2024

Thunderbird Email 2 CSV Exporter

This add-on has been thoroughly tested on all platforms up to Thunderbird version 115. It allows you to target specific file folders and tag them for export, generating a CSV-formatted export file. Great for a large number of emails and Mailchimp.

Not yet rated
49 users
Updated April 10, 2024

Mongolian Spellchecking Dictionary

Mongolian Spellchecking Dictionary

Not yet rated
9 users
Updated March 6, 2024

Multimonth view

Multimonth View allows users to display multiple months in a single calendar view,

Rated 2 out of 5 stars (4)
42 users
Updated March 5, 2024

Tag Sync for TB

Syncronise/transfer tags, to other TB installations.

POP and some IMAP servers don't store tags (keywords).
This addon helps to have the same emails tagged on all TB installations.
Uses a central database, can be installed on your PC or server.

Rated 5 out of 5 stars (1)
61 users
Updated Feb. 28, 2024

CT Cornish Spell-Checker - SWF

This is a spell-checker for the Cornish language in the Standard Written Form.

Not yet rated
3 users
Updated Dec. 22, 2023

Articles Toolbar

Adds the Articles toolbar

Not yet rated
22 users
Updated Dec. 16, 2023

Notebird

Prendi appunti su tutte le email!

Rated 3 out of 5 stars (1)
106 users
Updated Nov. 16, 2023

Spellchecker Rumantsch Vallader

Spellchecker for Rumantsch Vallader

Not yet rated
3 users
Updated Oct. 31, 2023

Spellchecker Rumauntsch Puter

Spellchecker for Rumauntsch Puter

Not yet rated
1 user
Updated Oct. 31, 2023

Spellchecker Rumantsch Sutsilvan

Spellchecker Rumantsch Sutsilvan

Not yet rated
3 users
Updated Oct. 31, 2023

Spellchecker Rumantsch Grischun

Spellchecker Rumantsch Grischun

Not yet rated
1 user
Updated Oct. 31, 2023

Spellchecker Rumantsch Surmiran

Spellchecker for Rumantsch Surmiran

Not yet rated
16 users
Updated Oct. 31, 2023

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)
68,186 users
Updated Oct. 1, 2023

Spanish (Mexico) Dictionary

Spanish (Mexico) spell checker dictionary

Rated 5 out of 5 stars (1)
7,546 users
Updated Oct. 1, 2023

Valencian Catalan dictionary

Free Catalan (Valencian version) spelling dictionary.

Rated 4 out of 5 stars (32)
715 users
Updated Aug. 26, 2023