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Brazilian Portuguese Dictionary (New Spelling)

The same spellchecker shipped with the Brazilian version of Firefox.

Rated 4 out of 5 stars (46)
8,154 users

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German Dictionary, classical spelling standards

German Dictionary according to the classical spelling standards for spell-checking in Firefox and Thunderbird

Rated 5 out of 5 stars (20)
9,312 users

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United States English Spellchecker

This dictionary is no longer maintained. Use this dictionary instead.

Rated 4 out of 5 stars (207)
5,252 users

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Brazilian Portuguese Dictionary (Former Spelling)

The same spellchecker shipped with the Brazilian version of Firefox, just using the former spelling (which is valid until January 1st 2016).

Rated 4 out of 5 stars (6)
774 users

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German Dictionary (de-DE), classical and reformed

German Dictionary according to the classical or reformed spelling standards for spell-checking in Firefox and Thunderbird ++
Deutsches Wörterbuch nach den bewährten oder reformierten Regeln für die Rechtschreibprüfung in Firefox und Thunderbird

Rated 5 out of 5 stars (7)
2,271 users

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Slovak spell checking dictionary

Slovak spell checking dictionary for Mozilla applications (based on the "open-source" dictionaries by Zdenko Podobný).

Rated 4 out of 5 stars (6)
3,172 users

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Finnish Spellchecker

Finnish (fi-FI) spellchecker dictionary for Firefox, Thunderbird and SeaMonkey .

Rated 3 out of 5 stars (9)
415 users

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Russian spellcheck dictionary (yo). Based on AOT.

Russian spellchecker dictionary. Based on works of AOT.ru group. (only yo)

Rated 5 out of 5 stars (4)
105 users

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Correutor ortográficu d'asturianu

Asturian spellchecking dictionary

Rated 4 out of 5 stars (7)
40 users

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Hausa Spelling Dictionary

Hausa spelling dictionary

Rated 4 out of 5 stars (2)
3 users

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Scottish Gaelic spell checker

An open (traditional spellings and GOC inclusive) spell-checking addon for Scots Gaelic, which will correct over 1.7 million words, making it the biggest spell-checking dictionary to date.

Rated 5 out of 5 stars (2)
50 users

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Словникъ Български

This is a Bulgarian spell-checker based on the historic orthography from 1899 known as "Ivanchevski pravopis". It is using the Mozilla built-in spell-checking engine (hunspell).

Rated 5 out of 5 stars (4)
10 users

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Kurdish Sorani Spellchecker

Kurdish Sorani Spellchecker for Firefox, Thunderbird and SeaMonkey by Dr Yadgar Balaky and Ranjbar Balisane.
To enable, right-click in a multi-line text box, select "Languages", then "ku-CKB".

Not yet rated
1 user

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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)
22,361 users

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Tagalog/Filipino Dictionary

A Tagalog/Filipino Dictionary (tl) for Pale Moon, Firefox, Thunderbird, and SeaMonkey.

Not yet rated
1 user

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Khmer Spellchecker

Khmer (km-KH) spellchecker by Tim Boeun.

Rated 5 out of 5 stars (2)
8 users

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Azerbaijani Spellchecker

Azerbaijani SpellChecker for Mozilla Firefox. Developed with love by Mozilla Azerbaijan.

Not yet rated
4 users

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Balochi Spellchecker for UniBal Script

This add-on is a Balochi spellchecker based on the UniBal Balochi script.

This is a pre-beta version as the dictionary has 1000+ words and not all Balochi Affix rules are implemented.

Please use it and give your feedback

Rated 3 out of 5 stars (1)
1 user

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