Message Composition
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Strip inline images
Adds a button to the compose window to remove inline images from messages. The images are replaced with their filename in angled brackets.
This is helpful when replying to long message threads with lots of embedded images.
MultiLDAP2 Requires Restart
Based on TrustedBird/MiliMail work. Patched to work with lastest Thunderbird.
Permits to use several LDAP directories simultaneously for address autocompletion.
OpenPGP Alias Updater
Updates the local OpenPGP Alias file from a server to simplify encryption for mailing lists, or email aliases in an organizational environment.
Please make sure config parameter "mail.openpgp.alias_rules_file" is set to "openpgp_alias.json".
Reply As Original Recipient Requires Restart
Reply with the From: field set to the To: field from the original email.
To must occur only once
This add-on changes all but the first "to" to "cc" if there are multiple "to" when replying to an email.
Unicodify – Text transformer
Easily and quickly autocorrect common symbols as ¼, transform text to “Unicode fonts” and change the casing.
Compose Responsive Images
When writing new emails, newly inserted images are made responsive by setting style="max-width:100%" and removing width/height attributes.
CloneMessage
When composing an email, CloneMessage allows you to duplicate the current state of the email.
ThunderAI
ThunderAI uses the capabilities of ChatGPT to enhance email management.
It enables users to analyze, write, correct, and optimize their emails.
There is no need for an API key and is possibile to use this extension even with a free account!
One-Click Forward
Forward emails directly through a dropdown of predefined recipients.
Configure recipients in settings. Use the message toolbar button "Quick Forward" to open a dropdown with your recipients and forward directly, or hold Shift to edit first.
FileLink Provider for Dropbox
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
Grammar and Spell Checker — LanguageTool
Check your emails for spelling and grammar issues
PopMailListRecipients 2
Expands address book lists to recipients addresses in the compose window
Signature Switch
Switch the signature on/off or choose a new one from your predefined set.
To create your own collections, you must have a Mozilla Add-ons account.