# Page 5 | Thunderbird Reviews 2026. Verified Reviews, Pros & Cons | Capterra

> Page 5 - Is Thunderbird the right Email Management solution for you? Explore 156 verified user reviews from people in industries like yours to make a confident choice.

Source: https://www.capterra.com/p/230507/Thunderbird/reviews

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Thunderbird

4.4 (156)

[View alternatives](https://www.capterra.com/p/230507/Thunderbird/alternatives/)

Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Learn more](https://www.capterra.com/our-story/)

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Last updated March 13th, 2026

# Page 5 - Reviews of Thunderbird

## Showing most helpful reviews

Showing 101-125 of 156 Reviews

Sort by:

Most Helpful

Rating

Company Size

Reviewer's Role

Length of Use

Frequency of Use

NZ

Nino Z.  
\-  
Internet  
Used the software for: 2+ years

### "Bewertung des Programmes Thunderbird"

January 11, 2024

5.0

Zusammenfassend ist Thunderbird ein sehr gutes Mailprogramm für Firmen und Privatanwender.

Pros

Man kann selber bestimmen, wie Thunderbird aussieht (zumindest so mindestens 10%).

Cons

Leider ist es nicht immer ganz so einfach Emails hinzuzufügen. Da würde ich mir wünschen, das man dann bei @web.de auf die web.de Anmeldeseite weitergeleitet wird, und nicht das in Thunderbird eingeben muss wo man auch nicht drauf hingewiesen wird, das man bei web.de z.B. noch was einstellen muss, damit das geht.

Review Source

GC

Gino C.  
Creative Adviser  
Graphic Design  
Used the software for: 2+ years

### "Mail posta gratuito e con molte funzionalità "

February 2, 2023

4.0

Complessivamente molto soddisfatto. Lo utilizzo fin dalle primissime versioni.

Pros

La gratuità e le funzioni evoluto per la gestione della posta

Cons

Sulle nuove installazioni si sente la mancanza di un account che riporti tutte le configurazioni sulla nuova macchina

Switched from

[Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/)

Facilità di utilizzo

Review Source

SP

Santosh P.  
Digital Marketer  
Marketing and Advertising  
Used the software for: 2+ years

### "Robust email client. "

November 12, 2021

5.0

One of the most well rounded email clients and beats Outlook by a mile and then some!

Pros

Open source, Mozilla-made, feature rich. What's not to like! I used Mozila Thunderbird for a good 7 years before moving to Protonmail. Too many features to love to list. Ability to integrate with Protonmail is a plus as well.

Cons

The fact that this is a local client. Iwas needing cloud access to mails and my webmail was not cutting it. Also, setting up encryption was a bit tedious. Hence, had to move to Protonmail.

Switched from

[Gmail](https://www.capterra.com/p/202338/Gmail/)

Privacy issues.

Review Source

MP

Marcus P.  
Director  
Marketing and Advertising  
Used the software for: 2+ years

### "Excellent & Free Email Application"

August 2, 2021

5.0

Our overall experience has been very positive, if you are looking for a trustworthy and free solution that can basically cater to all intermediate needs, then Mozilla Thunderbird is definitely the solution of choice.

Pros

Setting up new email accounts with various providers is a seamlessly simple task. Quick configurations work very well and there are more advanced settings for more complicated setups. As a free to use program it has all the features and functionality that you would require. Adding Google Calendars and setting up meetings can be integrated and performed within seconds.

Cons

Some more advanced features such as automated reply suggestions as well as further security configurations can enhance the capabilities of the program. Other than that, it is a great product.

Review Source

勲長

勲 長.  
ひとり情シス  
Machinery  
Used the software for: 2+ years

### "Gmailから移行しました。"

October 25, 2022

4.0

毎日使っていて、慣れてきたこともあり、最近では不便に感ずることが少ないです。特に問題なく使えています。

Pros

Gmailを使っていましたが、セキュリティ上の観点を考慮して、自らのローカル環境にデータを置くことを重要視して、乗り換えしました。Gmailではスレッド機能を便利に使っていましたが、Thunderbirdでは標準機能のままだと、その機能がありません。その点は、プラグインの導入で補いました。さまざまなプラグインがあるので(その管理が手間な面はあるものの)、必要機能に限って導入できる点は好ましく思います。加えて、企業の管理者目線からすると、某有名オフィスツールのメールソフトより設定がし易いです。何と言っても設定トラブルが少ない。この点は間違いなくオススメできます。

Cons

Gmailでは「タグ付け→そのまま振分ツリーへ表示」がスムーズにできます。その点を重宝していました。Thunderbirdでも同様のことが可能ですが、「タグの管理」と「検索フォルダーの管理」が別になっていて連動していないので、戸惑うのと同時に、設定に煩わしさを感じます。また「タグ自体の管理」も熟れていない印象を受けました。

Review Source

SP

Shawn P.  
Owner  
Online Media  
Used the software for: 2+ years

### "Great free email client, lacks a slick UI but it's very customizable "

March 3, 2022

4.0

While it's ugly, it's still my go-to email application when I'm not using the web. It has every single feature I want from an email client.

Pros

I like that it's free and open source, and it's incredibly customizable. There's a ton of community extensions that are available to be installed with minimal setup.

Cons

The UI is incredibly outdated. It looks like 20 year old software.

Review Source

AR

Andrea R.  
IT Manager  
Industrial Automation  
Used the software for: 2+ years

### "Software potente ed essenziale, graficamente poco curato"

October 10, 2022

5.0

Pros

E' gratuito E' potente e non ha limiti nelle caselle configurabili Supporta gli adds-on Permette di impostare una master password

Cons

Graficamente è davvero poco curato, anche se ha tutto quello che serve non guasterebbe una grafica un po' più carina e moderna

Alternatives considered

[Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/)

Review Source

DK

Dev K.  
Design Engineer  
Electrical/Electronic Manufacturing  
Used the software for: 2+ years

### "Best Desktop Email Application"

January 16, 2024

4.0

This is probably the email you want if you want desktop email. It'll be around forever and it'll always work.

Pros

This is a best-of-class, open source and Free Software desktop email client that works very well with all necessary email protocols.

Cons

It is clunky and the UI less polished or trendy than some other applications - for me this is a good thing.

Reason for choosing Thunderbird

Free Open software, it'll be around forever and won't disappear or make arbitrary design changes.

Review Source

Petter K.  
Parish Manager  
Civic & Social Organization  
Used the software for: Less than 6 months

### "Not the best e-mail software"

March 6, 2024

3.0

Pros

I think the main thing I can say that I like about Thunderbird is that it is free. That's probably the only positive thing I have to say.

Cons

I haven't really worked with any email software that have been as clunky and hard to use as Thunderbird. Would certainly not recommend!

Review Source

VR

Verified Reviewer  
Web and Mobile developer  
Information Technology and Services  
Used the software for: 6-12 months

### "Sicuramente valido per gestione in-out della posta"

February 1, 2023

4.0

Pros

Per la semplice gestione della posta non ho mai avuto problemi, ho usato lo strumento per mesi quando ero libero professionista.

Cons

Non ci sono particolari problemi, se non per il fatto che trovo altri software più usabili per la gestione di contatti e agenda appuntamenti

Review Source

VL

Veronica L.  
Impiegata  
Industrial Automation  
Used the software for: 2+ years

### "Molto utile"

February 5, 2024

5.0

Pros

Trovo molto utili i calendari sincronizzati con in colleghi, l'interfaccia semplice ma funzionale, la funzione di invito dei vari partecipanti alle riunioni.

Cons

Niente in particolare, tranne che a volte si sdoppia la cartella della posta inviata.

Review Source

SM

Stefano M.  
Ufficio tecnico  
Construction  
Used the software for: 2+ years

### "Buon prodotto per gestione mail"

December 26, 2022

5.0

Pros

Valida alternativa per gestione caselle di posta

Cons

Poca compatibilità con alcuni caratteri e poche possibilità di firme

Alternatives considered

[Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/)

Review Source

VR

Verified Reviewer  
Owner  
Accounting  
Used the software for: Less than 6 months

### "Easy to use"

March 4, 2022

5.0

Well excellent experience, no complaints, I hope in future can see more improvement

Pros

Generously speaking it is one of the best software I am using, I have 3 Gmail accounts and I have emails in all the 3 accounts somewhere 50000, it is all saved and I can see all the record easily I recommend this software to everyone

Cons

No, I did not find out any difficulty, easy to use, do not think so there is need of any kind of improvement it is completely awesome software

Review Source

AL

Ad L.  
Director  
Information Technology and Services  
Used the software for: 2+ years

### "good alternative email client if you do not want to use Microsoft Outlook both paid or free"

August 17, 2021

2.0

Fast, no costs. Good alternative if you want to use a mail client instead of the more intuitive webmail portals.

Pros

its pretty fast in performance. The layout/visual is easy to understand since it is basic email layout (pretty similar as gmail)

Cons

Since it is open source you are bound to support from other users. The opening of tabs is something i personally do not like. Maybe others users are liking it more than i do. Don't like the visual. It has a rather childish menu bar layout in black and white.

Review Source

VR

Verified Reviewer  
Responsable de marketing  
Education Management  
Used the software for: I used a free trial

### "Para salir del paso"

December 3, 2022

3.0

Pros

Te ayuda a tener varias bandejas de mail en la misma aplicación. Una ve configurado, te mantiene alerta de las novedades. Además, es gratis o al menos permite plena funcionalidad sin pagar

Cons

Cuesta configurarlo, la firma es difícil de cambiar (así como todas las configuraciones en general). Visualmente no está muy trabajado. Hay otras opciones igual de válidas

Switched from

[IONOS Marketing](https://www.capterra.com/p/235441/IONOS-Marketing/)

Quería tener todos los correos en un mismo sitio

Review Source

DP

Darian P.  
Team Lead of Internal Tools  
Insurance  
Used the software for: 2+ years

### "Review for Thunderbird"

August 16, 2021

5.0

We like thunderbird and have the majority of our users using it.

Pros

I like how professional it is when sending out emails. We use gmail as the email provider behind the scenes and I prefer the UI and formatting of the thunderbird client over anything else.

Cons

We don't use the calendar functionality because it constantly would not work for our users. Also, we have had many users complain about slowness of the PC when using the program, especially during compacting of files or filters.

Review Source

MM

Murtaza M.  
Assistant Manager IT  
Restaurants  
Used the software for: 2+ years

### "Simply the best eMail App"

December 10, 2021

5.0

Pros

It is very simple and easy to use free email software. I was unable to install Windows Mail on a Windows 8 laptop so I opted for Thunderbird since then I have never ever urged or thought about going back to Outlook or Mail. Everything is so simple in thunderbird, there are a bunch of addons available. My fav addon Quickfolder which makes thunderbird more visualized and mails easily to find.

Cons

1\. It's not available on iPhone. 2. PST import was bit tricky

Review Source

SS

Shashi S.  
Student  
Higher Education  
Used the software for: 1-2 years

### "The software is very simple and easy to use. It is reliable."

January 13, 2023

5.0

There was some technical issue with my university webmail. So, my university IT team suggested I install thunderbird. It has fewer features than outlook but as a University student, the software works fine for me because I don't need all those outlook features. The alerts and notification is the best part.

Pros

Reliable, easy to use, and a good management system for emails.

Cons

The user interface is black and white. You can't create rules as we can make in Outlook.

Review Source

AA

Alessandro A.  
Responsabile Tecnico  
Business Supplies and Equipment  
Used the software for: 2+ years

### "Le tue mail in un unico programma"

February 24, 2023

5.0

Mi ha permesso di migliorare la gestione delle mail da pc. Con un unico software riesco a vedere ed archiviare tutte le mail.

Pros

Innanzitutto il fatto che è gratuito. Mi da la possibilità di gestire più indirizzi e-mail e di archiviare tutta la mia posta. Molto utile anche la possibilità di esportare le mail e creare archivi di vecchie mail. Molto funzionale anche la configurazione di un indirizzo mail, facile e veloce.

Cons

La ricerca delle mail, non la trovo molto pratica e funzionale. Da questo punto di vista deve migliorare parecchio.

Review Source

VR

Verified Reviewer  
Treasury Analyst  
Financial Services  
Used the software for: 1-2 years

### "Reliable email client, but could use some revamping"

March 11, 2022

4.0

Pros

It is open source and, at least in my experience, free of charge

Cons

User interface. It feels like an application from the early 2000s. Could use some revamping.

Alternatives considered

[Gmail](https://www.capterra.com/p/202338/Gmail/)[Zoho Mail](https://www.capterra.com/p/174694/Zoho-Mail/)[Superhuman](https://www.capterra.com/p/199278/Superhuman/)

Review Source

AS

Albert S.  
RAMS engineer and validator  
Railroad Manufacture  
Used the software for: 2+ years

### "Review by Albert\_Thunderbird"

November 14, 2022

3.0

Pros

One of the most important features is that allows you you to have several tabs to manage your e-mail.

Cons

Thunderbird, for me, has been abandoned by Mozilla, and as well GMAIL has overpassed it in terms of ease of use and e-mail management.

Review Source

DS

David S.  
Tech Acct MGR  
Information Technology and Services  
Used the software for: 1-2 years

### "Would recommend for a techy type person"

September 15, 2022

4.0

I use it everyday among other email clients and it is a good free sourced email platform.

Pros

For the most part it is an easy setup of your email. It is a free source email so you can't beat the price.

Cons

Setting up Microsoft exchange inside of Thunderbird is difficult if you do not know what you're doing there really is no work through out there that is easy to follow.

Review Source

Rita Carla Francesca M.  
Translator  
Translation and Localization  
Used the software for: Less than 6 months

### "Very good email client"

November 29, 2022

5.0

It allowed me to keep managing my email the way I used to when I was forced to upgrade the operating system of one of my PCs and the old email client wouldn't work any more.

Pros

Thunderbird is very versatile. It allows me to check some mailboxes via IMAP, but I can also download the messages from others via POP3 and manage them locally. This is what I needed when forced to leave Live Mail behind.

Cons

It took really a lot of work to import my whole message archive from the previous client, and most of it is done manually, including create all folders and make sure my messages ended into the right one.

Review Source

JF

Josine F.  
Owner  
Hospital & Health Care  
Used the software for: 2+ years

### "Thunderbird email's for the birds"

July 23, 2021

5.0

Overall it is positive. We have been very happy with the setup. we use IMAP

Pros

Ease of use, simple set-up. We use this across all our platforms.

Cons

I am very happy with this software however on occasion when it updates I need to set it up again.

Reason for choosing Thunderbird

Better functionality, user friendly.

Review Source

VR

Verified Reviewer  
Sales Advisor  
Telecommunications  
Used the software for: 1-2 years

### "L'alternativa a Microsoft Office "

March 30, 2024

4.0

Utilizzo questo programma come client di posta per un indirizzo mail secondario ma lavora bene! Pochi fronzoli grafica di sostanza, direi concreto.

Pros

Client di posta leggero e open source! Leggero, non completo come Microsoft Office ma si fa apprezzare! Tutto l'indispensabile al posto giusto!

Cons

Niente di particolare da segnalare di negativo

Review Source

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