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Why We’re Rebuilding The Thunderbird Interface From Scratch

Thunderbird is quickly approaching its 20th anniversary as a standalone email client. And as we get closer to this year’s release of Thunderbird 115 “Supernova” we’re hearing a certain question more and more often:

“Why does Thunderbird look so old, and why does it take so long to change?”

~ A notable percentage of Thunderbird users

It’s certainly a valid one, so let’s spend some time answering it!

As Thunderbird’s Product Design manager, I have some good insights into what’s happening and where things are going. Consider this article (and the companion video below) the first painting in a more complete mural showing where Thunderbird is headed, and why some of the things we’re doing might seem counterintuitive.

Some of the talking points below might be divisive. They might touch a nerve. But we believe in being transparent and open about both our past and our future.

Watch our companion video, hosted by Alex, which goes into even more detail.

3 Objectives For The Next 3 Years

Before we really dig in, let’s start with the future. We believe it’s a bright one!

With this year’s release of Thunderbird 115 “Supernova,” we’re doing much more than just another yearly release. It’s a modernized overhaul of the software, both visually and technically. Thunderbird is undergoing a massive rework from the ground up to get rid of the technical and interface debt accumulated over the past 10 years.

This is not an easy task, but it’s necessary to guarantee the sustainability of the project for the next 20 years.

Simply “adding stuff on top” of a crumbling architecture is not sustainable, and we can’t keep ignoring it.

Throughout the next 3 years, the Thunderbird project is aiming at these primary objectives:

Inside those objectives there are hundreds of very large steps that need to happen, and achieving everything will require a lot of time and resources.

Thunderbird: An Old, Fragile LEGO Tower

Photo by Mourizal Zativa on Unsplash

What’s all this stuff about “technical debt?” Why does it need to be rebuilt? Let’s talk about how we got here, and shed some light on the the complicated history of Thunderbird’s development.

Thunderbird is a monolithic application that has been developed by thousands of people over the course of two decades. Making major changes — as we’re doing with Supernova — requires very careful consideration.

As you’re reading this, it might help to imagine Thunderbird as an enormous Lego tower you’ve built. But years later, you realize the crucial center piece serving as the foundation is using the wrong shape. If you replace just that piece, the whole tower will crumble. This means you have to slowly remove the blocks above it to keep the tower from collapsing. Then, once you reach that center piece, you replace it, and then add back the pieces you removed with slightly different pieces.

Why? Because the original pieces don’t fit anymore.

How Is Thunderbird Made?

Thunderbird is literally a bunch of code running on top of Firefox. All the tabs and sections you see in our applications are just browser tabs with a custom user interface.

We love using Firefox as our base architecture, because it leverages all the very good stuff within. Things like cross-platform support, the Gecko web renderer, the Spidermonkey JavaScript compiler, and so on.

The Firefox logo + the Thunderbird logo

In doing so, Thunderbird can tag along Firefox for their release cycle, inherit security patches, benefit from extensions support, and much more.

Obviously there’s more complexity to it, including a lot of C++, JS, CSS, and XHTML to ensure everything works properly. Using a solid base architecture like Firefox is the perfect starting point.

Unfortunately, this approach comes with a hefty cost.

Keep in mind that Thunderbird is currently being actively developed by a bit more than a dozen core developers. Firefox has hundreds of developers constantly changing and improving things on a daily basis.

So, you can imagine how many times per week things suddenly break in Thunderbird because a C++ interface was renamed, or an API was deprecated, or a building library was upgraded. Keeping up with the upstream changes is not a simple task, and on some occasions it takes up most of our days.

“Is Thunderbird Dead?”

That cost — and what I’ll talk about next — is why Thunderbird has accumulated an enormous amount of “technical debt” to pay off.

Throughout the years, Mozilla’s focus shifted a lot, investing less and less resources into the development of Thunderbird. On July 6, 2012, the Mozilla Foundation announced that it would no longer be focused on innovations for Thunderbird, and that the future Thunderbird development would transition to a community-driven model.

This meant that community members and external contributors would be in charge of developing and supporting Thunderbird.

This decision was both a blessing and curse.

The blessing: it sparked a fire of support and contributions inside the community, allowing passionate contributors to submit code and improve Thunderbird in areas they cared about. Many features and customization options were introduced because a lot of community members started sharing and proposing their ideas to improve Thunderbird. The community grew, and the project became a solid example of real software democracy!

The curse: coordinating efforts across a volunteer community was challenging. Plus, there weren’t enough resources to ensure the long-term success and sustainability of an open-source software project.

Our Community Saved Thunderbird, But…

The Thunderbird community absolutely kept the project alive all of those years. Millions of active users, contributors, donors, and supporters have dedicated hours and hours of their free time in order to guarantee a usable and useful tool for so many. And they did a great job — something we’re eternally grateful for.

Our community responded and adapted to the scenario they found, and they tried to make the best of it.

Since Thunderbird was being contributed to by many volunteer contributors with varying tastes, it resulted in an Inconsistent user interface without a coherent user experience.

Moreover, the lack of constant upstream synchronization with Firefox caused the inability to build and release Thunderbird for months at a time.

The more time passed without a proper development structure, the more difficult it became to keep up with the technology innovations and improvements from competitors. Thunderbird now lacked a proper organization behind it. It lacked development oversight, a cohesive vision, and a roadmap. It lacked full-time employees with specific expertise.

And all of that contributed to a question that grew louder and louder as the years went by: “Is Thunderbird dead?”

MZLA Technologies and Community Culture Shock

Today, Thunderbird is wholly owned by MZLA Technologies, a subsidiary of Mozilla Foundation, and it’s actively developed and maintained by a growing group of paid employees. We have a proper organization, a roadmap, and people in charge of making smart decisions and defining directions.

This shift, which happened slowly between 2017 and 2020, was a bit of a shock for our community. Now, additions or changes need to be approved by core developers and designers. A stricter roadmap and list of features gets the priority during every release cycle, and external contributions are rejected if they’re not up to the standard of quality and visual direction of the project.

This sudden shift in the way Thunderbird is handled and developed created a “walled garden” feeling. This caused many community members to feel rejected or alienated by a project they spent hours on.

This is absolutely understandable, but it was necessary. 

Still Open, And Still Open Source

At Thunderbird, we strive to remain open, welcoming, and collaborative as much as possible.

We constantly advocate for an open process, starting from the initial roadmap ideas, releasing early mock-ups and changes to our community, as well as keeping our entire source code open and accessible.

Even though we’re very upfront and honest about the direction of the project, the decision making process happens during internal meetings. It’s driven by the people in charge, like a normal company. The lead developer, lead designer, project and product manager, senior engineers, etc, make the final decisions.

We always listen and incorporate the feedback from the community, and we try to balance what we know is needed with what our users and external contributors want. But you can’t make everyone happy; trying to do so can actually dilute and devalue your product.

The toughest thing to do is changing the perception that “we” (the core developers) don’t care about the community and we just do things to upset them, or change things just because it’s “trendy”.

That couldn’t be more wrong.

What To Expect Going Forward

In 2023, Thunderbird is pretty well sustainable, with a healthy donation flow, more services in development to increase our revenue stream (stay tuned!), and an ever growing team of developers and designers bringing their expertise to the table.

The technical debt is slowly abandoning the source code, thanks to the outstanding work of many core developers which are implementing modern paradigms, documenting a consistent coding style, and removing the crusty old code that only creates problems.

Improvements to the UI and UX will continue for the next 2 years, with the objective of creating an interface that can adapt to everyone’s needs. A UI that looks and feels modern is getting initially implemented with version 115 in July, aiming at offering a simple and clean interface for “new” users, as well as the implementation of more customizable options with a flexible and adaptable interface to allow veteran users to maintain that familiarity they love.

A renewed attention to usability and accessibility is now part of our daily development process, guaranteeing easy discoverability of all the powerful features, as well as full compatibility with assistive technologies to make Thunderbird usable by everyone.

And yes, absolutely: the constant addition of new features that some of our competitors have had for years, as well as the creation of some amazing and innovative solutions that will improve everyone’s experience.

Everything, as usual, wrapped around an open and ethical process, with a constant attention to our community, and a renewed passion to innovate and grow, to make Thunderbird the best personal and professional communication application out there!

Thanks for taking the ride with us. And thank you for trusting us. We welcome your feedback in the comments below.

83 responses

lascapi wrote on

That’s sound amazing, open and trustworthy !!

I love the way Thunderbird is going since few years now!
The refreshing of the UX/UI is a great challenge because not everyone can be happy at the same times, but I think you can manage.

Greetings !!!

Sem wrote on

Thanks for all the hard work.

Streit Eric wrote on


the nightly Thunderbird release under Linux (Debian bookworm) is completely broken. But I didn’t find any way to submit the problems I encounter. And there are a lot. At the moment, it just cannot open the folders correctly and crashes.

Is there a bugzilla or something where it is possible? I use thunderbird since the first release, and it’s painful to see it not working properly.

Best regards


Jason Evangelho wrote on

Eric, thanks for helping us test the nightly channel! First, we’d love to have you read this general notice about what’s becoming the “Supernova Alpha” phase:

That same mailing list (TB Daily) is a great place to discuss things, or you can absolutely use Bugzilla here:|Thunderbird

Sean Duran wrote on

Really great to see. I was just considering moving away from Google and thought about using Thunderbird again. Looking forward to this!

Timothy wrote on

This is the way to go!

Thetcher Bishop wrote on

Really excited for this release! I’m really happy to see Thunderbird getting the love and attention it deserves.

Patrick wrote on

I’ve had a couple of ups and downs with Thunderbird over the decades. The performance wasn’t always where I needed it to be, and I’ve used other clients for stretches, but Thunderbird feels like home, and whenever I was away I longed to come back.

I seldom comment on anything online, but there’s a subtext of weariness to this post. I see the way Thunderbird gets discussed on certain parts of the Internet, and it clearly has one of the most demanding userbases for any software project that I’ve ever seen.

I, for one, have always loved the design of Thunderbird, and I’m truly excited to see this year’s updates in particular.

Thanks for everything! Donating now.

CharlesV wrote on

OUTSTANDING JOB!!! Thunderbird is only getting better and better,keep up the good work and please let ALL contributors know there are people out there that love and use TB as the ONLY real mail client!

don vukovic wrote on

I have been using Thunderbird since it was a paid app.
I am sure your additions are wonderful to those new computer users that want a glossy user experience.

With that said, will there be a way to keep the old user experience or at least turn OFF those annoying new features that do nothing to help read email ??

Jason Evangelho wrote on

Absolutely. Even with all the changes, you can very quickly and easily feel right at home in the UI you’re already comfortable with.

Bill Perkinson wrote on

The number one need for Thunderbird is, without any doubt, availability of an android/ios version.

Jason Evangelho wrote on

Both of which are happening!

amj wrote on

And that “spaces” sidebar is the least useful thing in the world to me and I wish there was a way to remove it from the tab bar.

Jason Evangelho wrote on

The left-facing arrow at the bottom of the Spaces Toolbar completely hides it…

Marie Mushing wrote on

I love Thunderbird. It has never let me down over the many years I have used it. Thank you for keeping on making it work fabulously for all of us.

Kent Borg wrote on

kentborg tooted:

@kadin Are they going to redesign this for thumbs? I use a mouse. I *like* menues, they show me what’s available, they are compact. Will I need to learn a bunch of gestures? With my mouse? Will my screen be taken up with a bunch of buttons now?

I hope I’m wrong, but I don’t like the trends.

Jason Evangelho wrote on

For thumbs, there will be Thunderbird Android this summer 😉

José Marinha wrote on

Tanks for the feedback and explanation of the whole past and near future of Thunderbird.
Long live Thunderbird!

Mitch Smith wrote on

This is good news.
Hopefully one of the improvements will be a way to easily sync your personal address book across multiple platforms.

victorhck wrote on

As a happy Thunderbird user (and proud supporter via donation) I’m happy to see how this key software to manages and encrypt my mails, and manage my calendar has a vision for the future!! Keep on rockin’ and making great free software!!

I have translated this vision to spanish and published in my blog to share and help to spread the word abput the project:

Happy hacking

Fernando Malick wrote on

Are you planning to develop a version of Thunderbird for cellphones?

Jason Evangelho wrote on

Yes. Please read this.

Gary Cahn wrote on

If we don’t like the new Thunderbird will we have to adopt it, or can we stick with the old Thunderbird indefinitely?

Jason Evangelho wrote on

Hey Gary, you’ll probably feel very comfortable in the new Thunderbird; we acknowledge that our veteran users don’t want major changes to the UI, and they don’t want to re-learn how to use the software! Something we’ll demonstrate in our next video and blog post. Stay tuned!

Facundo Lander wrote on

I have been using Thunderbird for quite a while now, I didn’t mind the looks but I’m really excited for a modern Thunderbird. Can’t wait for updates and for July for version 115. I just hope I don’t have to redo all my filters :0
What worries me a little is the use of the term “open”… I hope the project doesn’t steer away from free software and keeps respecting the user’s freedoms.

Jason Evangelho wrote on

At our core, we have always been free as in beer, and free as in freedom. That won’t change!

David wrote on

It’s really exciting to hear that thunderbird is alive and well and getting new development effort put into it. I’ve been using it for many years and have a hard time functioning without it. This tool is the only way I can use Microsoft mail services and remain sane

John Walsh wrote on

I have used thunderbird longer than I can remember, and I like a basic/simple interface – I know what I’m doing and organize everything well.

As long as I can turn off any ‘advanced’ features (like conversion view, globally), I’ll be happy.

Really, thanks for providing thunderbird, it’s been great. I only wish I could have it on my android phone.

Stefan wrote on

Thunderbird is my go to email program and just works.
So thank you developers for a great and wonderful email client that just does what it needs to do.

I am sure the changes will be an improvement, but please keep your users that actually like the UI as it is in mind too. Not everyone likes ‘lets change everything around because we know better google/microsoft like antics’ changes to a perfectly well working program.

Jason Evangelho wrote on

We PROMISE we are keeping veteran users in mind and we want you to feel right at home in the new version. You’ll see proof of this in our next video and blog post.

Chris Swartout wrote on

Please allow font and size change in ALL text, esp. the message display. The message list is too small – I can fix more messages on the screen, but I can not read them. Old eyes are hell.

I can tell you how many times I have asked for this, but each time no luck. I sure can not change email Thunderbird is the best — but…

Best of luck to you … Remember this application is a tool not a Product to sell.

Jason Evangelho wrote on

You can do this right now in Thunderbird 102 — change the global font by clicking the App menu (3 vertical lines on the top right), then “View” and then “Font Size.” You’ll see changes reflected in real time.

TechLawGuru wrote on

I’m excited about Thunderbird’s future. Could you please add support for labels as used by Google/Gmail and Fastmail? Including, for example, being able to easily see the labels on each e-mail and add/remove labels?

Daniel wrote on

Thanks for the interesting insight. I’ve been using Thunderbird for what feels like ages and I’m glad you’ve put it on a solid footing.
I was really worried a few years ago, but it’s clear that you have a vision and know where you want to go.
What I still missed was a hint on how you want to continue with Thunderbird on mobile devices / K-9. Do you currently have a clear desktop focus? In any case, good luck with the renovation.

Jason Evangelho wrote on

Daniel, we actually just doubled the size of our development team for K-9/Thunderbird Android, AND will begin work on Thunderbird for iOS this year.

Leslie Parrish wrote on

Thank you for this explanation! It certainly will make me more patient when dealing with the difficulties I’ve been having with Thunderbird. The integrity you show is unusual these days, and greatly appreciated. I plan to hang with you as you iron things out. Thank you for trying so hard!

Jason Evangelho wrote on

Thanks for sticking with us, Leslie.

Jones wrote on

Thank you for your work guys 🙂

Keith Mitchell wrote on

Please don’t force long-standing users to contend with major UI changes.

Jason Evangelho wrote on

We won’t, and you’ll see proof of that in our next video and blog post!

Steve Sibelman wrote on

As a “veteran user”, I wonder whether/how you can both make a UI “that looks and feels modern” and “maintain[s] the familiarity that [I] love.” Best of luck to you in navigating the tension/contradiction in this mission. And thank you for all you do to maintain and improve this excellent tool.

Andrew B wrote on

I have used Thunderbird since it was first available.

It is very capable and configurable, and hasn’t ever crashed or hung on me, unlike MS Outlook. (Note: I use Outlook on my work PC with Windows, I use Thunderbird at home with Linux Mint)

I prefer having email software and storage on my PC although I use Gmail too. I feel more secure and in control having local storage of emails rather than using a cloud base service.

Yash Pal wrote on

Hope Thunderbird is even more loved and popular in its reincarnation

Frank wrote on

Love Thunderbird just as it is, warts and all. Thrilled to hear its getting an overhaul at last. Thunderbird is really the only half-decent email client on the PC any more, but it has accumulated various ‘quirks’, and could always use more options.

FYI, you can count me as someone who does like the current UI, especially when compared to some of the horrible software designs we’ve seen of late, which usually come with removal of useful options, and reduction in customizability. But I trust you all to do a great job, and I’ll be waiting eagerly to see what you come up with.

Jason Evangelho wrote on

We appreciate the vote of confidence, Frank. Thanks for sticking with us!

olavinto wrote on

This was a nice post and it actually highlighted the problem that appears with many fully community driven open source projects. While it’s great that the community has freedom to get involved it can be a problem when there is no oversight and/or leadership that defines a coherent direction, look and feel – in essence sets a common standard that should be met with every addition. It is not rare for open source projects to be a bit all over the place with features and functionality being added constantly with an UI that looks very different on some parts or is mostly neglected/dated all around. Some parts get constant attention while others get zero. Linux distributions used to be a great example before certain organizations and companies created certain distros with a focus on usability an unity.

There are a lot of feature-wise fine software that is so complicated or illogical to to use that their potential regular level users will never adopt them because of it. The value of a nice, well maintained UI should never be underestimated – it is the one thing that every user stares at every second.

mexsudo wrote on

I see nothing mentioned about migration.
hopefully my existing Tbird files (email and calendar) can be used.
FWI: my current .thunderbird folder has 2,547 items, totalling 10.2 GB

Jason Evangelho wrote on

We’re mainly discussing user interface. Rest assured your existing data WILL be compatible with Thunderbird 115. That is extremely important to the majority of our users.

Craig Bourne wrote on

We’re it not for LCAMH (Long COVID Ate My Homework) I’d certainly want to pitch in, with my 40+ years of software engineering experience, on such a project! Perhaps when my recovery is more nearly complete, eh?

Jason Evangelho wrote on

Craig, best wishes for a swift recovery. You can always have a look at when you’re ready to contribute!

Victor Benincasa wrote on

It’s great to hear this news. Many users complain about Thunderbird’s old and not so intuitive look. Thunder will become unbeatable with a modern, intuitive and customizable interface!

Congratulations to the developers team and supporters for the excellent software, which will surely become even better!

Gavin & Rosemary Ross wrote on

Is this why we cannot get access this evening, 11 February?

Jason Evangelho wrote on

No, we’re discussing an unreleased version, and it wouldn’t affect your inability to access your email. You may want to contact your mail provider directly.

Dale wrote on

This is great to hear. I just stopped using Thunderbird again because of all the bugs and issues. I even tried Better bird but I just found it worse.

Can’t wait to see the changes and I’ll be back.

Gary Campbell wrote on

I’m glad that Thunderbird is still alive and will be continuing. I am blind, and use JAWS as my screen reader. I switched to Thunderbird from outlook when I migrated to windows 8.1 and found the email client quite inaccessible. (That situation has improved of late, but it still doesn’t have all of the Thunderbird features I use.) I just migrated from windows 10 to a new computer using Windows 11 that went well, except that I lost all my tags, which I make heavy use of, Even though I copied the profile, and indeed even the entire Thunderbird appdata folder.
When I hear “redesign the interface from scratch“ hi involuntarily wince, because very often accessibility features become broken. I am glad to see that you specifically mention assistive technology, and hope the experience goes better then I am used to.
Thanks for your continued support of Thunderbird.

TC wrote on

Like a lot of long term users, I am really looking forward to the upgrades.

Even in v.102 I’m enjoying the improved address book manager and the updated look.

Keep up the good work!

Romario wrote on

I’ve been using thunderbird for ages now and I can’t wait to see the new interface. Kudos to the team and everyone who has worked on this project.

Alex wrote on

I really appreciate this self-critical and honest post.
Greetings from Austria

Para Celsius wrote on

Does “a flexible and adaptable interface” also mean that the UI will be able to adapt to different screen sizes of different kind of devices like big desktop monitor, tablets, smartphones? Take GNOME’s core apps as an example, which are usable on mobile devices, too.

I think that should really be incorporated now that the effort is taken to revise the UI.

Jason Evangelho wrote on

That’s one of our longterm goals. Currently, Density + Layout + Global font settings can help tremendously. We’re also developing Thunderbird mobile for tablets and smartphones.

User wrote on

Many people have been posting their feedback about Thunderbird on Mozilla Connect. Please start monitoring it.

Jason Evangelho wrote on

We’ll make a better effort to keep tabs on it, thanks.

Eugene Savitsky wrote on

As I remember you cannot install TB Nightly along side with TB beta.

Is there a way to see the nightly with new UI not braking my daily work?

Jason Evangelho wrote on

We’re definitely investing in our calendar development too. Here’s something you might enjoy reading:

Gabriel wrote on

I haven’t used Thunderbird (or any other desktop email client) for years, but yesterday I started a recurring monthly donation to your project.

Looking forward to seeing the new design

Jason Evangelho wrote on

That’s incredible. Thanks for your generosity, Gabriel! We feel compelled to ask: why are you donating if it’s a product you don’t use?

Jody Thornton wrote on

Seems like questions are getting answered quickly here, so I’ll ask again on this blog entry. Will Windows 7 and 8x be able to run the new Thunderbird 115 release?

Jason Evangelho wrote on

Hi Jody, this is tricky to answer right now. Windows 7 compatibility depends largely on what Firefox 115 ESR (Extended Support Release) is supporting. Since there hasn’t been an official announcement from Mozilla yet regarding Windows 7 EOL (End Of Life), I think it’s safe to assume that support won’t be discontinued this year. But by next year, I think it’s a given. This bug has a bit more insight into our response:

James wrote on

Very excited for this! I currently use Evolution since I marginally prefer its UI (and EWS support is free) but I’ll definitely be hopping onboard the Thunderbird train when Supernova drops, even if it means shelling out for Owl.

Is there any way to help test the redesign?

Jason Evangelho wrote on

Hey James, thanks for keeping an open mind. You can definitely help us test the beta! We’re expecting it to land on the beta channel mid-April. We’ll talk about it here on the blog, and on all our social networks too. Thanks!

6LMdPu0H4YnVqGSV wrote on

“We welcome your feedback in the comments below.”

Hi, I left feedback previously (comment #3181) and you declined to publish or respond to that comment. What’s up with that?

Jason Evangelho wrote on

Apologies for that, but I don’t see a previous comment from you.

Daniel wrote on

How many negative comments did you delete? Mine from a few days ago isn’t here.

Jason Evangelho wrote on

You’re always welcome to post constructive criticism. However, we don’t publish toxic comments or ones that insult the talent of our team.

Jody Thornton wrote on

Also I posted a comment from yesterday, regarding Windows OS compatibility. Is that against the rules?

Jason Evangelho wrote on

Not against the rules at all — didn’t we just answer it?

Jody Thornton wrote on

Yes it hadn’t been approved and in view at the time. Not my bad in this case

I was hopeful that since you were excising a ton of old Firefox, that OS compatibility might be less reliant on where Mozilla was going with this. They are taking a long time to sort that out. But, we’ll see.

Thanks again,

Dwight WilsonDWilson wrote on

As a long time TB user, I rely on it for keeping track of multiple accounts over many, many years. Additions I will appreciate seeing, in both the Linux and windows builds, are:

– Remember where it last was on a multi-monitor system or allow some level of control for what monitor TB defaults to when opened.
– Syncing, or improved syncing, with outside calendars, such as Google.
– The mobile app (IOS/Android) – Already discussed above. Yeh!!!
– More intelligent searching, including defining what mailbox is being searched, what folder within that mailbox, age of the e-mails being searched, a filter to control all of this, etc.

All in all, outside of an updated, easier to use, and more streamlined interface, TB works very well for me.

Thank you for the whole TB team, all contributors, and donors. Much appreciated!

Dwight wilson wrote on

Yes, I also noticed my positive post from today was also declined and is no longer showing. Not sure why, since as I mentioned, it was positive (I really like and have used TB for many years). I did ask about a few potential features, so hopefully that was not the reason for exclusion.

Jason Evangelho wrote on

Remedied this, Dwight, sorry for the delay. I handle the majority of our content production, social media, comment approvals, etc, and sometimes I just can’t get to everything in a timely manner. Appreciate your feedback!

Michael Reck wrote on

It would be nice to have a “comment” function. A comment on each email. Why? I often get emails like: Your order 303-456-9001221 has been shipped. Then I can write behind it that it was my math book, for example.

Jason Evangelho wrote on

This is a really interesting idea, Michael. Would you mind submitting this idea at Mozilla Connect?

Comments are closed.