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SpamTester
SpamTester allows you to test the spam score of your email using popular anti-spam software (SpamAssassin, Rspamd...). This is useful to know if your email will fall into the recipient's spam (or even get your mail server blocked).
ThunderThings
sms77
No tabs
Hides the tab bar and automatically removes all inactive tabs everytime a tab is opened or switched to.
ShowContactFoto
Displays the contact photo/image/picture of the sender/recipients while reading/composing message.
Images are taken from local image files or Address Book (see addon's options page).
Webpage Opener
Send Unsent Mail Button
AutoZoom
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
Tatar spellchecker dictionary
Tatar dictionary for spell-checking in Firefox and Thunderbird.
Орфографический словарь Firefox и Thunderbird для проверки правописания татарского языка.
Kiswahili Spell Checker
Lower Sorbian dictionary
Babyish spellchecker
Owl for Exchange
Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).
FileLink Provider for Box
Uploads your large attachments to your Box instead of sending them by email.
ScrollAnywhere
Scroll without touching the scroll-bar!
Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar.
Features also:
- "grab and drag" scrolling
- customizable scrollbars!
- the Momentum auto-scroll
skypewebapp
Adds browser action icon to toolbar to open Skype. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/skype/
Bug OpenerTo create your own collections, you must have a Mozilla Add-ons account.
