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Black Screen
Use black screen test to detect dead pixels, stuck pixels, and other display defects.
EagleCloud Extension
Works along with EagleCloud Information Security product to secure sensitive information based on company policy.
White Screen
Use white screen test to detect dead pixels, stuck pixels, and other display defects.
Bulgarian+Germany Spell Checker
Едновременна проверка на правописа за български и немски езици
Simultaneous spelling of Bulgarian and German
Gleichzeitig Schreibweise von bulgarischen und deutschen
ProtonMail Encryption Status
When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.
Huastec spell checker
Requires Restart
This is a spell checker for Huastec (Tének) language. It is based on the Potosina variety.
Copyright: Jesus Carretero. University Carlos III of Madrid. Spain
Thanks to Kevin Scannell (SLU, USA)
Komi (kpv) spellchecker dictionary
Komi (kpv) dictionary for spell-checking in Firefox and Thunderbird
Udmurt spellchecker dictionary
Udmurt dictionary for spell-checking in Firefox and Thunderbird
Interlingua - Spelling dictionary
Dictionario orthographic pro Interlingua.
Spelling dictionary for Interlingua.
Črkovalnik za slovenski jezik
Spell-checking dictionary for the Slovene language
Slovar za slovenski jezik
Changelogger
Mongolian Spellchecking Dictionary
Clacks Overhead
In tribute to the late Sir Terry Pratchett, many users are adding the message "GNU Terry Pratchett" into the email header "X-Clacks-Overhead". Clacks Overhead shows users when this appears in their emails and displays the message included.
Český slovník pro kontrolu pravopisu (CC0)
Experimentální český slovník pro kontrolu pravopisu.
English (US) Dictionary
This add-on repackages the en-US dictionary available in mozilla-central, which uses the normal (size 60) word list by SCOWL and integrates it with over 6 thousand words.
Articles Toolbar
Real sender of italian PEC
Shows real sender of italian certified emails (PEC) into the table that lists emails.
WhatsApp Web in ThunderbirdTo create your own collections, you must have a Mozilla Add-ons account.
