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Darko

Simple dark mode (theme) for your Thunderbird messages.

FastAddons.com/#darko

Rated 5 out of 5 stars (35)
5,319 users

RemindMe

Moves email into Inbox/RemindMe folder, and moves it back into Inbox after chosen time.

Rated 4 out of 5 stars (11)
481 users

Toggle HTML

Adds a Toggle HTML button

Rated 4 out of 5 stars (8)
1,148 users

Australian English Dictionary

FEATURES
- Profanity
- Racism
- Slang words
and so much more!

GitHub repo @ https://github.com/Caskexe/Australian-English-Dictionary
Firefox Add-ons listing @ https://addons.mozilla.org/en-GB/firefox/addon/australian-english-dictionary/

Rated 5 out of 5 stars (2)
2,349 users

InfoCodex DocSummarizer

Intelligent document and mail summarization tool based on the artificial intelligence of InfoCodex. Create better summaries chapter-by-chapter and tag them in your preferred language.

Rated 1 out of 5 stars (1)
13 users

ThunderWebTabs

Opens Google Keep, Google Photos, Android Messages or any other website in Thunderbird's tab.

Users who encounter "Browser not supported errors" should try changing their User Agent. For more details, please visit the "Support site".

Rated 5 out of 5 stars (5)
389 users

Thematic

Quickly switch between your themes or back to the default.

Rated 3 out of 5 stars (2)
566 users

OpenFolder

This add-on makes it easy to open folders on a file server.

In order to use the add-on, you need to install two things: the add-on and the linked app.
You can download the linked app from the following website.

https://openfolder.net/

Rated 3 out of 5 stars (2)
161 users

Change Link Appearance

Changes the appearance of links when displaying a message

Not yet rated
120 users

Last selected message

The add-on remembers the last selected message in visited folders. After restarting Thunderbird, when we enter the previously visited folder, this message will be displayed, just like in Microsoft Outlook.

Rated 3 out of 5 stars (6)
208 users

Mailbox Full Alert (quota warning)

Get notified when your mailbox space is almost full.

Mailbox Full Alert (MFA) is a Thunderbird addon that monitors mailbox usage and warns you when the configured quota is exceeded.

Rated 5 out of 5 stars (1)
53 users

DynSign

DynSign is a Thunderbird extension that dynamically inserts a signature into your emails. It allows you to keep your email signature up to date without having to manually edit it in Thunderbird.

https://github.com/Vozodo/DynSign

Not yet rated
39 users

Microsoft To Do - Quick Access

Quick Access to Microsoft To Do (Live) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 5 out of 5 stars (1)
564 users

Open Google Tabs

Open up Google Calendar, Notes, and Microsoft Outlook in a new tab.

Not yet rated
106 users

Gemini - Quick Access

Quick Access to Google Gemini AI (formerly Bard) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 5 out of 5 stars (1)
516 users

GetMyInvoices

Save your attached PDF invoices or archive and store complete invoice e-mails directly to your GetMyInvoices account from Thunderbird

Not yet rated
26 users

UnInbox - Quick Access

Quick Access to UnInbox in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Not yet rated
5 users

CollectAddresses

Collect all sender/recipient/... addresses and store in an addressbook

Rated 5 out of 5 stars (6)
1,583 users

Two Dynamic Birds

An extension of the "Two Little Birds" and "Dracula" themes that includes a toggle button to turn on dark mode.

The position of the light/dark toggle button can be customised to avoid it covering the cute birds!

Rated 3 out of 5 stars (1)
239 users

BestReply

BestReply is an add-on that aims to improve users’ experience by providing quick services to the user such as summarization of emails, response generations, as well as a smart chat with our AI model based on the email they are reading.

Rated 3 out of 5 stars (1)
22 users