Add-ons
Message and News Reading
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Magic Clipper for NotebookLM
Import emails, attachments and links directly into Google NotebookLM in one click from the Thunderbird message pane. Optimized for Gemini analysis.
Audio Attachment Player
Allows playing audio attachments (mp3, wav) directly within the email message view. Keywords: Audio Attachment Playback, mp3, wav, Audio Preview.
GMail Spaces Tab
Unofficial GMail add-on for Thunderbird, it adds a button in Spaces that opens a GMail tab in Thunderbird.
Outlook Spaces Tab
Unofficial Outlook add-on for Thunderbird, it adds a button in Spaces that opens a Outlook (web version)) tab in Thunderbird.
Google News Spaces Tab
Unofficial Google News add-on for Thunderbird, it adds a button in Spaces that opens a Google News tab, and allows for search in Google News from selected text.
Safe Trash Cleaner
Empties trash, junk and selected folders of selected Thunderbird accounts after confirmation.
SoundMail
Thunderbird add-on: play different new-mail sounds using rules (sender, domain, subject, body, regex), per-account & default sounds, drag-to-reorder priority, JSON import/export, and optional light/dark theme + UI language for the settings page.
WashiBird
A cozy, paper-like theme (Light/Dark). Built as an extension to allow deeper UI customization than standard themes support.
KIM Attachment Search
Sucht in KIM-Anhängen (XML/PDF/DOCX) und zeigt Meta-Daten
EPUB Ninja - eBook Reader
A fast, lightweight EPUB/CBZ reader for Thunderbird. Part of the Ninja suite.
Open Email in Browser Tab
Open the current email in a browser-style tab inside Thunderbird, with inline images restored for messages Thunderbird shows as attachments.
Email Cleanup Utilities (Email Cleaner)
Unknown senders are a common phishing threat. Right‑click messages to copy the sender's email or domain or create filters without opening the message.
Thunder Org Protocol
New Mail Notifier
Shows notifications when new mail arrives in Thunderbird 128+.
DMARC Report Analyzer
Analyze DMARC aggregate and forensic reports locally within Thunderbird. Visualize authentication results per domain, classify source IPs, detect threats, track DKIM/SPF/envelope alignment, and export data. Fully offline with zero network requests.
AI Postman
Summarize emails and refine selected text using your own AI API. Set your OpenAI-compatible endpoint and key in options; no built-in backend. Summarize when reading mail; Refine with one click in the compose toolbar, then Insert to replace the text.
ThunderJira
A Thunderbird addon that integrates Jira directly into the email client. Supports Jira Cloud (atlassian.net) and Jira Server / Data Center (self-hosted).
Attachment Grabber: Bulk save
Attachment Grabber extracts and saves attachments from selected emails. Configure filename patterns using variables to organize saved files automatically. Quickly collect attachments from multiple messages without opening each email.
Att-Hub - attachment view, paste & managing tool
The overall attachment manager & viewer: Find, filter, open, print, save, paste your mail attachments from all folders you choose. With preview to zoom, containers to order, ZIP download to backup. Print or screenshot PDFs & images or make new PDF.
Silk Forward
Cleanly forward emails in Thunderbird without bulky technical headers. Choose Gmail-style, Outlook-style, or minimal forwarding formats. Supports attachments, signatures, and advanced templates with Silk Forward Pro.
To create your own collections, you must have a Mozilla Add-ons account.
