Add-ons
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Sender Verification Anti-Phishing Extension
Requires Restart
Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.
Quickfile
Requires Restart
Quickfile is an extension for Mozilla Thunderbird which initially aimed to speed up filing of messages into your mail folder heirarchy but now includes features for navigation and folder creation...
InfoLister
Requires Restart
Lists installed add-ons (extensions, themes, plugins). Mozilla does not allow me to publish the version compatible with Firefox 48+, see http://forums.mozillazine.org/viewtopic.php?f=48&t=2084957&p=14715558#p14715558 for details.
Text size toolbar
Requires Restart
Adds text size buttons to the toolbar. This has now been superseded by the Zoom toolbar https://addons.mozilla.org/en-US/firefox/addon/6118
Bork Bork Bork!
Requires Restart
The Swedish Chef travesty filter and URL blocker. View web pages or mail as spoken by the Swedish Chef like this...
"Zee Svedeesh Cheff trefesty feelter und URL blucker. Feeoo veb peges oor meeel es spukee by zee Svedeesh Cheff leeke-a thees."
Open As Webfolder
Requires Restart
Open pages and links in Windows WebFolder WebDAV client (similar to "open in Webfolder" checkbox in IE's open...
PONG! Multiplayer
Russ Key
Requires Restart
Allows typing in phonetic Russian and transforming Russian translit into Cyrillic...
MessageID-Finder
Requires Restart
MessageID-Finder is a addon for the Mozilla mail/news-client and Thunderbird which helps you to find the message to a certain...
traduku
Requires Restart
Translate text from English and other languages into Esperanto.
Traduku tekston de la angla kaj aliaj lingvoj al Esperanto.
Uses/uzas https://lingvo.org/traduku (try as side bar/provu kiel flankfenestro).
Message Notes
Requires Restart
Add Notes to messages. Notes are stored in a plaintext file, typically in your profile. The plaintext notes file can be stored elsewhere to enable sharing of notes across a...
TB Reset Quote Header Extension
Requires Restart
You can now modify the look of the quote header on replies. Quote header templates are included in the xpi ( open the xpi with a archive program like winzip and extract the two txt files) Then, in the extension's options page, type the word...
SendTools
Requires Restart
Add SendAt option to the compose window to allow sending a message on a particular date and...
TB Change From and Fcc on Compose Extension
Requires Restart
You can now temporarily change the from and fcc on...
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