Mozilla Connect

Currently, the thread shows only the recieved messages. It would be very interesting to include also the sent replies, so that the whole dialog (message exchange) can be seen in the thread. Fairemail does this by default. ... View more

I lead a local history group and I send all the members a newsletter every week, but I also send messages to some members individually. If I search for messages I've sent to an individual person, I also get all the messages I've sent to ALL the group members. I think that many people would find it useful to be able to search for messages sent to a SINGLE individual only. ... View more

I was thinking about this over the last few days and I think there is an opportunity to really improve the Attachment UX in Thunderbird Mobile.  I attached pictures of each step and then a gif showing the UX in action. My thought is that the message header will have an attachment icon, and if you tap the attachment icon a tray that slides in from the right (similar to the accounts tray that slides from the left) will contain the message attachments.  I think this could be a really great user experience. I hope everyone likes it. Message Body. There is an attachment icon in the header. Clicking the attachment icon opens the attachment tray from the right. The attachment tray lists all of the attachments, which you can either open or download ... View more

Hey friends, A feature which exists on most email apps (at least Outlook) is that when a legitimate email/sender falsely gets sent into the spam folder, one can choose to say the sender is safe, meaning the email automatically gets put back into the regular inbox, and all of the same sender's future emails land in the regular inbox instead of the spam folder. Currently I always have to switch back to Outlook to do this when I (often) receive legit mail in my spam. Thanks, Axel ... View more

My drafts folder slowly accumulates drafts that I did finally finish and send. Being hyper cautious... when I want to clean up the Drafts folder I work mail by mail, searching for one with the same Subject in the Sent folder to confirm that the draft is no longer needed. It seems to me this could be automated in some way. ... View more

Using Thunderbird with external Dav ressources like nextcloud has some glitches especially if you are collobarting in a bigger group. It creates load on a server if a bigger group is synching their calendars each X minutes. It creates confusion if a client syncs in a longer period because people think the current state of a subscribed calendar is exactly the same like it is on the server. This project tries to realize this for DavX5: https://github.com/bitfireAT/davx5-ose/pull/856 In my opinion Thunderbird has to improve the performance and stability regarding CalDav ressources. It would be good if thunderbird also implements this push feature. ... View more

It would be great if more than 3 sub-folders could be sorted by name ascending or descending. This is different to the global rule, which should still be used for sorting the mails in each folder. ... View more

Regardless of email account (right now I've got 4 hooked up to Thunderbird), I want to be able to tell Thunderbird something like "Emails tagged 'Promotional' should be deleted after 2 weeks". If I wanted to do that right now, I'd have to set up filters (per account) to move tagged messages around, and then set rules for each folder (per account, again). ... View more

With email correspondence which goes back and forth for some time, the subject often changes.  But when I manually change the subject, the replies stay in the same thread.  I'd really like to have them in a new thread.  It would be easier to locate them if needed. ... View more

💡 Idea: Add a smart reply feature to Thunderbird that suggests automatic responses based on the content of the received email, with fully customizable templates depending on the context (work, personal, support, etc.). 🧠 How it works: When an email is opened, Thunderbird analyzes its content locally (privacy-respecting). It then suggests 2–3 pre-written replies that the user can send with a single click. Users can create and manage their own templates with simple rules, for example: If the sender is in the “work” group, suggest: "Thanks for your message, I’ll get back to you later today." If the email contains the keyword “invoice,” suggest: "Thanks for sending this over, I've received it." 🛠️ Additional Features: A template editor with condition-based logic (sender, keywords, priority, etc.). Smart variable insertion (e.g., contact’s name, date, subject…). Works across multiple accounts. Optional auto-reply with user confirmation. ✅ Benefits: Huge time-saver for professionals, nonprofits, and heavy email users. Reduces inbox anxiety and helps process routine emails faster. Especially helpful for users with writing or typing difficulties. 🔐 Privacy: All processing would happen locally, with no data sent externally — fully aligned with Thunderbird’s privacy-first philosophy. ... View more

It would be a good idea to integrate WhatsApp into a single window next to email, so we wouldn't have to interact with tabs. Something like Mailbird. ... View more

At present it is possible to create a filter that discriminates on  whether an address, e.g. From, is an the user's address book. I would  like to filter messages on a particular address book, to sort messages by membership of a particular interest group of mine. ... View more

If I reply to a message, I have threading enabled so I can see the original email and the reply I sent (in Sent). (excuse my poor 'graphical representation')   Original Message   |- Reply Message If I read the "Reply Message", the reading pane includes the original message I replied to, not simply what I said. I want to turn off the display of the original message, when I look at the 'Sent' message. Example Original Message : Hello Reply Message : Good to see you when I open the reply message I see Subject and Message Headers Hello ---------------- Subject and message headers  Good to see you I only want to see Subject and message headers   Good to see you If I wanted to read the previous messages in the conversation, I would read those messages. Can I do this? It would be nice if this capability could be enabled or disabled as a setting. I recently got horribly confused with an email 'conversation' between 4 people that replied to all for each message. ... View more

I would like to propose adding support for SMTP Delivery Status Notifications (DSN) in Thunderbird when sending emails. Currently, Thunderbird only allows users to request a read receipt (Disposition-Notification-To header), which depends on the recipient's willingness to acknowledge the message. However, Thunderbird does not support SMTP DSN, which allows the receiving mail server to automatically notify the sender of successful delivery, failure, or delays — independently of the recipient’s actions. The implementation of this feature would enable Thunderbird to send the NOTIFY=SUCCESS,FAILURE,DELAY option in the SMTP MAIL FROM command. Example: MAIL FROM:<sender@example.com> NOTIFY=SUCCESS,FAILURE,DELAY ✅ Benefits of this feature: Allow professional users to confirm email delivery at the SMTP server level Automatically receive a notification if a message fails to deliver or is delayed Align Thunderbird’s features with other clients like Outlook that already provide this functionality Ideally, the feature should: Allow users to enable/disable the DSN request per message in the compose window Provide a global setting per account to enable DSN by default Thank you for considering this suggestion, which would enhance Thunderbird's professional capabilities. ... View more

I have tens of filter rules. Always I need to install TB on other computer, I have to type all of them again. Why can't I simple export/import them? Thanks. ... View more

I love the RSS feed for Thunderbird, I would really like to have Tridactyl and Sponsorblock added to Thunderbird. It would be a great quality of life addition to the RSS feed. ... View more

Hello, I´m using mostly the Dark Mode. But there are some Mails from some Senders that won´t work in dark Mode. It would be good if I could set the Mode specific to Senders. Thanks. ... View more

I often have to open to edit my events in order to see what sort of reminder, if any is set for it.  It would be nice to be able to hover over the event in the Event Pane to display that along with the other information presented there.  Better yet, visual indicators would be even better so I didn't even have to hover over it. ... View more

I was bumbling around today and doing my project management stuff like usual, and I suddenly thought of something really cool. What if Thunderbird had an Obsidian and/or Affine functionality added to it? I think that would be really cool.  And for the time and $ it would take to do something like this...  well just do what Affine does.  They charge extra for A.I. integration.  They also have a believer's plan for like $499 for lifetime pro functionality. Hopefully someone also thinks this is a great idea.  I would much rather give a lifetime subscription to Thunderbird than any other app out there. ... View more