# Thunderbird Software Pricing, Alternatives & More 2026 | Capterra > With the help of Capterra, learn about Thunderbird Software - reviews, pricing plans, popular comparisons to other Email Management products and more. Source: https://www.capterra.com/p/230507/Thunderbird --- # Thunderbird Software Review 2026: Features, Integrations, Pros & Cons Last updated on March 13, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. Independent research methodology Capterra’s researchers use a mix of verified reviews, independent research and objective methodologies to bring you selection and ranking information you can trust. While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology. [Learn more](https://www.capterra.com/resources/proprietary-data-research/) How Capterra verifies reviews Capterra carefully verified over 2.5 million+ reviews to bring you authentic software experiences from real users. Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI. [Learn more](https://www.capterra.com/resources/how-we-verify-reviews/) How Capterra ensures transparency Capterra lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. Capterra is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider’s website. [Learn more](https://www.capterra.com/resources/how-we-ensure-transparency/) [Description](#description)[Use cases](#use-cases)[Alternatives](#alternatives)[Users](#users)[Features](#features)[Pricing](#pricing)[Support](#support)[Reviews](#reviews) Thunderbird ## What is Thunderbird? On-premise email management platform that helps businesses filter, search and organize emails. ## What is Thunderbird used for? [Email Management](https://www.capterra.com/email-management-software/) Recognitions Shortlist Top alternative Featured Overall rating Based on 159 user reviews Reviews sentiment Positive 87% Neutral 11% Negative 3% Contact vendor for pricing Free trial not available Capterra Shortlist charts the highest-rated and most popular products... - Email Management / 2025 Our "Best of" badge program showcases products with the highest ratings... Our "Best of" badge program showcases products with the highest ratings... - Email Management / 2026 Do you work for Thunderbird?[Manage this product listing](https://digitalmarkets.gartner.com/get-listed/claim-bx?url=https://www.mozilla.org/en-US/&name=Thunderbird) ## Compare with a popular alternative Capterra selects software alternatives based on relevant features, verified user reviews and user interactions. Placement may be influenced by client status. ### Thunderbird 4.4 (159) VS. [4.7 (1,780)](https://www.capterra.com/p/102188/LiveAgent/reviews/) Starting Price Contact vendor Starting Price $15 Per User, Per Month Free Trial Free Version Pricing Options Free Trial Free Version Ease Of Use 4.4 (159) Ease Of Use 4.6 (1,760) Value For Money 4.7 (119) Value For Money 4.6 (1,511) Customer Service 3.7 (81) Customer Service 4.7 (1,530) ## Thunderbird alternatives [4.6 (3,439)](https://www.capterra.com/p/132996/brevo/reviews/) Starting price $9.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 94% of reviewers rated it above 4 stars Highest Rated [Gmail](https://www.capterra.com/p/202338/Gmail/) [4.8 (13,397)](https://www.capterra.com/p/202338/Gmail/reviews/) Starting price Contact vendor for pricing Pricing Options Free Trial Free Version User Rating 98% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/202338/Gmail/) [Google Workspace](https://www.capterra.com/p/247901/Google-Workspace/) [4.7 (17,549)](https://www.capterra.com/p/247901/Google-Workspace/reviews/) Starting price $7.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 96% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/247901/Google-Workspace/) [Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/) [4.5 (2,451)](https://www.capterra.com/p/227138/Microsoft-Outlook/reviews/) Starting price Contact vendor for pricing Pricing Options Free Trial Free Version User Rating 92% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/227138/Microsoft-Outlook/) [View all alternatives](https://www.capterra.com/p/230507/Thunderbird/alternatives/) ## Who uses Thunderbird? Based on Capterra reviews from the past 4 years Company size Based on 128 reviews 100% 75% 50% 25% Smallbusiness Midsizebusinesses Enterprise Top job functions Based on 128 reviews Administrative 24% Administrative 24% IT & Software Development 18% Consulting 10% Engineering 8% Others 39% Top industries Based on 128 reviews Information Technology and Services 50% Internet 20% Automotive 11% Marketing and Advertising 11% Other 8% ## Features Features with the highest number of reviews are displayed first. Those that have no reviews appear next, sorted alphabetically. Search/Filter 4.2 (117) 70.09% of 117 reviewers that rated this feature as important or highly important Thunderbird offers fast search and advanced filtering, helping you quickly find emails by subject, sender, or content. Users think these capabilities save time and keep mail organized, but some say searching large databases can be slow or less relevant. Inbox Management 4.5 (99) 69.70% of 99 reviewers that rated this feature as important or highly important Thunderbird gives you flexible tools to organize your inbox, such as unified inbox view, folders, filters, and tagging. Reviewers appreciate how easy it is to manage multiple accounts, customize organization, and quickly access emails, though some want UI improvements. Archiving & Retention 4.1 (91) 50.55% of 91 reviewers that rated this feature as important or highly important With Thunderbird, you can securely archive emails, set retention policies, and organize local archives. Some reviewers find the archiving process straightforward and reliable, value the recovery options, and like the control over storage, though cloud backup options are requested. Signature Management 4.1 (77) 54.55% of 77 reviewers that rated this feature as important or highly important You can easily create, customize, and manage multiple signatures for different accounts in Thunderbird. Some users report that switching signatures is simple and helps with professionalism, though others mention HTML formatting and usability could be improved. Alerts/Notifications 4.3 (83) 60.24% of 83 reviewers that rated this feature as important or highly important Alerts or notifications of various types such as pop-up messages, sounds, banners, or badges Contact Management 4.2 (76) 56.58% of 76 reviewers that rated this feature as important or highly important Manage, organize, and store contact information Thunderbird 12 features Dashboard to view the status of ongoing processes, identify current incidents and track past activities Alerts or notifications of various types such as pop-up messages, sounds, banners, or badges With Thunderbird, you can securely archive emails, set retention policies, and organize local archives. Some reviewers find the archiving process straightforward and reliable, value the recovery options, and like the control over storage, though cloud backup options are requested. Manage, organize, and store contact information Thunderbird gives you flexible tools to organize your inbox, such as unified inbox view, folders, filters, and tagging. Reviewers appreciate how easy it is to manage multiple accounts, customize organization, and quickly access emails, though some want UI improvements. Access the system via a mobile application Allow multiple users with individual logins and varying permissions to use the same account, software, portal, or service Planning and managing of resources and procedures to mitigate the impact of events and incidents Thunderbird offers fast search and advanced filtering, helping you quickly find emails by subject, sender, or content. Users think these capabilities save time and keep mail organized, but some say searching large databases can be slow or less relevant. You can easily create, customize, and manage multiple signatures for different accounts in Thunderbird. Some users report that switching signatures is simple and helps with professionalism, though others mention HTML formatting and usability could be improved. Filters used to determine different types of malware threats Attach digital tags to documents and assets for identification, search, or monitoring purposes Features 4.3 (159) 4.3 Based on 159 reviews ## Pricing Value for money 4.7 (119) Free Version Free $0.00 Value for money 4.7 (119) 4.7 Based on 119 reviews ## Support, customer service and training options Customer Service 3.7 (81) Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Deployment - Web - Android - iPhone/iPad Typical users - Freelancers - Small businesses - Mid size businesses - Enterprises Customer Service 3.7 (81) 3.7 Based on 81 reviews ## User reviews Overall rating 4.4 Based on 159 reviews Filter by rating 5(90) 4(48) 3(17) 2(4) 1(0) Mentioned topic Sorted by most recent JF Jeffrey F. Owner Health, Wellness and Fitness ### "Solid email service especially to integrate with Protonmail Bridge" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 May 2, 2026 Really great! I also like that it has in the settings some options for extensions that will increase its capabilities Pros My favorite thing about Thunderbird is this it works with Protonmail which is my preferred email service Cons I guess I would like it to have some a few more options for color themes though it probably does have some and I just didn't know where to look Switched from [Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/) Because Microsoft Outlook is way too complicated and can get frustrating and annoying and it takes up a lot of space on my computer Review source Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication. Davide S. Impiegato Professional Training & Coaching ### "Semplice e classica" 4.0 Overall Rating 4.0 4.0 Ease of Use 5.0 5.0 Features 3.0 3.0 Customer Service 2.0 2.0 Likelihood to Recommend 6/10 April 30, 2026 Normale, è una buona mail da utilizzare in ambito lavorativo con la sua interfaccia minimale e semplice per più dipendenti Pros Molto pulito nella schermata principale,e poi l'ho trovato semplice nel suo utilizzo anche nelle sue funzioni principali Cons Il contro altare, l'avere l'interfaccia così pulita lo rende esteticamente un po' "vecchiotto" stile mail primi anni 2000 Review source Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication. SS Sven S. Prokurist Food Production ### "Reliable, Well-Organized, and Easy to Use Email Client" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 April 1, 2026 The calendar integration works smoothly, and features like filters, folders, and tags make daily email management efficient. Thunderbird is lightweight but still powerful enough for professional use. Pros One of Thunderbird’s biggest strengths is how easy it is to handle several email accounts at once. The integrated calendar, contact management, tags, and filter tools make staying organized effortless, even in a busy workday. It performs reliably, respects user privacy, and allows a wide range of personalization through themes and add-ons, which makes it suitable for both personal and professional communication setups. Cons The only drawbacks I’ve noticed are that the interface design looks a bit outdated compared to modern email clients, and certain advanced functions require additional add-ons to be installed. Occasionally, updates may change how some extensions work, which can require a bit of time to readjust or reconfigure. Still, these are minor issues compared to the stability and usability Thunderbird offers. Switched from [Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/) Because Microsoft Outlook got to expensive. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. Osvaldo B. Cinema operator Entertainment ### "Free and easy to use email manager." 4.0 Overall Rating 4.0 4.0 Ease of Use 4.0 4.0 Features 4.0 4.0 Customer Service 5.0 5.0 Likelihood to Recommend 8/10 January 28, 2026 In general, my experience has been good, and I like this email manager tool. I never had any kind of trouble. Pros I use Thunderbird every day at work with my colleagues. We use it to manage all our work emails in a fully secure environment. Thunderbird is easy to use and offers valuable customer support. I appreciate the calendar integration and all the other features. Cons I would like to see a little more friendly interface, with the possibility to change the colours inside the pages, to make them easier to read. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. Leandro A. Developer Computer Software ### "Thunderbird Review" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 December 2, 2025 I use it as my main email client , both for personal use and for work , it feels comfortable .Big plus that they don't spam you Pros It offers great security , access and conectivity . Fast , light weight email client .Also is open source and doesn't spam you Cons The Ui it's a little outdated . Sometimes it is difficult to find the way to access some of its features. Switched from [Gmail](https://www.capterra.com/p/202338/Gmail/) The send you advertisements all the time .It's really annoying Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. GB Guy B. président Sports ### "comment joindre Thunderbird pour expliquer son problème" 2.0 Overall Rating 2.0 2.0 Ease of Use 4.0 4.0 Features 4.0 4.0 Customer Service 1.0 1.0 Likelihood to Recommend 0/10 September 25, 2025 Pros Ca fait des années que je suis sur thunderbird il arrive qu'il y ait des bug mais toujours réglés rapidement sans avoir besoin de faire de recherche Cons Je rencontre un problème avec ma messagerie et pas moyen de joindre Thunderbird pour résoudre le problème impossible d'envoyer des message depuis plus d'une semaine et impossible de les joindre. Review source Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication. AF Alvaro F. encargado carroceria Automotive ### "Practico y eficaz" 4.0 Overall Rating 4.0 4.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 8/10 August 27, 2025 en general Es un software bastante agradable de usar, bastante intuitivo y que no requiere de saber manejar buzones de correo para empezar con el Pros Lo que mas me ha gustado de Thunderbird es la facilidad a la hora de añadir direcciones de correo, bastante rápido y eficaz. la facilidad q te da trabajar con diferentes cuentas en solo un clic y la gestión de los emails Cons el diseño en si se queda un poco anticuado en comparación con otros software y a la hora de leer los emails recibidos creo que se podría diseñar de otra formas mas eficiente Switched from [Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/) Outlook me pedía diferentes actualizaciones y no era tan intuitivo a al ahora de volver a meter las direcciones de correo Review source Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication. SP Stuart P. Product Manager Information Technology and Services ### "Amazing for a free product" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 3.0 3.0 Likelihood to Recommend 10/10 August 23, 2025 I was using another free email client that would not let me use different ports for incoming and outgoing mail so when searching for another one thunderbird looked great and has been very good so far. Pros I suppose I like the combination of its quality and price-point, as I use a free version. It is a lot more robust than other free software Cons Some of the styling is a little bit lacking but I need to be fair and say I've not tried to look for settings to change it so maybe it's better to say default styling is poor. Switched from [eM Client](https://www.capterra.com/p/160239/eM-Client/) Setting up config between incoming and outgoing mail was fiddly Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. Hugo G. Software developer and support E-Learning ### "Good email client, but could be improved" 4.0 Overall Rating 4.0 4.0 Ease of Use 4.0 4.0 Features 3.0 3.0 Customer Service 4.0 4.0 Likelihood to Recommend 7/10 May 9, 2025 Overall pleased but I'll like to see it improved Pros If the best OSS email clients, it fast and almost without bug Cons Sometimes buggy, slow to open large email of big conversation with a lot of destinations, and conversation history is not always good (the thread construction I mean, being able to read send email and received in a unified way as in GMail) Alternatives considered [Gmail](https://www.capterra.com/p/202338/Gmail/) Reasons for choosing Thunderbird Use your osn smtp/imap accounts, and it's free Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. NP Nicolas P. IT Manager Information Technology and Services ### "A great solution dor maange your mail" 4.0 Overall Rating 4.0 4.0 Ease of Use 5.0 5.0 Features 4.0 4.0 Customer Service 0.0 0.0 Likelihood to Recommend 8/10 May 9, 2025 Using thunderbird since several years in pro and personal use. Pros Very simple to use but could be configurated to have lots of stuff Cons As any other "plugable" software, be sure that any plugin don't create issue Alternatives considered [Microsoft Outlook](https://www.capterra.com/p/227138/Microsoft-Outlook/) Reasons for choosing Thunderbird Thunderbird is under free version and very light compared to Outlook Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. [View all Reviews](https://www.capterra.com/p/230507/Thunderbird/reviews/) ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. 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While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology. [Learn more](https://www.capterra.com/resources/proprietary-data-research/) How Capterra verifies reviews Capterra carefully verified over 2.5 million+ reviews to bring you authentic software experiences from real users. Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI. [Learn more](https://www.capterra.com/resources/how-we-verify-reviews/) How Capterra ensures transparency Capterra lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. Capterra is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider's website. [Learn more](https://www.capterra.com/resources/how-we-ensure-transparency/)