--- title: Thunderbird Reviews meta\_title: 'Thunderbird Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 340 reviews by the users' company size, role or industry to find out how Thunderbird works for a business like yours. aggregate\_rating: rating\_value: 4.3 review\_count: 340 scale: '5' date\_modified: '2026-08-09' parent\_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity --- ### Thunderbird Pros and Cons: Top 5 Advantages and Disadvantages #### Quick AI Summary Based on G2 Reviews Generated from real user reviews Users find Thunderbird to be **very easy to use** , streamlining email management and task coordination seamlessly. [(4 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1225855&qs=pros-and-cons#reviews) Users value Thunderbird for its **reliable functionality and customization** , enhancing their email management experience significantly. [(4 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1225521&qs=pros-and-cons#reviews) Users appreciate the **convenient email management** in Thunderbird, streamlining access to multiple accounts in one inbox. [(2 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2230683&qs=pros-and-cons#reviews) Users benefit from Thunderbird's **stability and organization features** , making daily email management efficient and reliable. [(2 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1226494&qs=pros-and-cons#reviews) Users value the **efficiency** of Thunderbird, noting its lightweight design and quick email synchronization across platforms. [(2 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1225867&qs=pros-and-cons#reviews) Users find the **difficult setup** of Thunderbird frustrating, especially when managing multiple email accounts and settings. [(2 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2064059&qs=pros-and-cons#reviews) Users find it challenging to navigate **missing features** like server-side rules and advanced account setups in Thunderbird. [(2 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2230822&qs=pros-and-cons#reviews) Users experience **sync issues** that hinder performance, especially with large mailboxes and across multiple devices. [(2 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1226072&qs=pros-and-cons#reviews) Users experience **bug issues** with Thunderbird, as large mailboxes lead to slow startup and resource-heavy tasks. [(1 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2498713&qs=pros-and-cons#reviews) Users report a **confusing interface** in Thunderbird, particularly with differing modes and inconsistent features across versions. [(1 mentions)](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2230709&qs=pros-and-cons#reviews) ### 5 Pros or Advantages of Thunderbird ##### 1. Ease of Use Users find Thunderbird to be **very easy to use** , streamlining email management and task coordination seamlessly. [ See 4 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1225855&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Mid-Market (51-1000 emp.) 4.5/5 "A more peaceful and secure work experience." What do you like about Thunderbird? Thunderbird lets us bring all our email accounts into one shared inbox—no more juggling profiles or platforms. With built-in OpenPGP encryption and an ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "An email client simple and efficient" What do you like about Thunderbird? My use of Thunderbird is pretty much simple: email reception and sending, filter to find an email per date or sender, automatic filters to get emails ##### 2. Functionality Features Users value Thunderbird for its **reliable functionality and customization** , enhancing their email management experience significantly. [ See 4 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1225521&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "An email client simple and efficient" What do you like about Thunderbird? My use of Thunderbird is pretty much simple: email reception and sending, filter to find an email per date or sender, automatic filters to get emails ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "Super satisfied with Thunderbird" What do you like about Thunderbird? I like the ease of use but also the number of features and plugins available to adapt it to your specific needs. ##### 3. Customer Support Users appreciate the **convenient email management** in Thunderbird, streamlining access to multiple accounts in one inbox. [ See 2 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2230683&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Mid-Market (51-1000 emp.) 4.5/5 "A more peaceful and secure work experience." What do you like about Thunderbird? Thunderbird lets us bring all our email accounts into one shared inbox—no more juggling profiles or platforms. With built-in OpenPGP encryption and an ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "An email client simple and efficient" What do you like about Thunderbird? My use of Thunderbird is pretty much simple: email reception and sending, filter to find an email per date or sender, automatic filters to get emails ##### 4. Daily Use Users benefit from Thunderbird's **stability and organization features** , making daily email management efficient and reliable. [ See 2 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1226494&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "An email client simple and efficient" What do you like about Thunderbird? My use of Thunderbird is pretty much simple: email reception and sending, filter to find an email per date or sender, automatic filters to get emails PS PollyAnna S. Small-Business (50 or fewer emp.) 5.0/5 "Free and Easy to Use" What do you like about Thunderbird? Thunderbird is free to its users. They appreciate donations. It's simple to use. Easy to put on your computer. I use it every day. ##### 5. Efficiency Users value the **efficiency** of Thunderbird, noting its lightweight design and quick email synchronization across platforms. [ See 2 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1225867&qs=pros-and-cons#reviews) See Related User Reviews ![Ryadh S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Ryadh S.") RS Ryadh S. Small-Business (50 or fewer emp.) 5.0/5 "An excellent mail app, up to par with the very best in the field" What do you like about Thunderbird? Lightweight and reactive, can also be modified with plugins and add-ons for improved functionalities and customisation. EE Elizabeth E. Small-Business (50 or fewer emp.) 5.0/5 "Synchronize personal and corporate email" What do you like about Thunderbird? Synchronize different corporate and educational domain emails, relationship and consultation with shared server and calendar for tasks to do. New ver ### 5 Cons or Disadvantages of Thunderbird ##### 1. Difficult Setup Users find the **difficult setup** of Thunderbird frustrating, especially when managing multiple email accounts and settings. [ See 2 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2064059&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "An email client simple and efficient" What do you dislike about Thunderbird? When it comes to re-set up an email account it can become a bit complicated, Thunderbird tends to use automatic processes that can be a pain to stop. ![Ryadh S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Ryadh S.") RS Ryadh S. Small-Business (50 or fewer emp.) 5.0/5 "An excellent mail app, up to par with the very best in the field" What do you dislike about Thunderbird? Attaching email addresses from other servers can be complicated (when setting up pop3/smtp addresses and security functionalities). ##### 2. Missing Features Users find it challenging to navigate **missing features** like server-side rules and advanced account setups in Thunderbird. [ See 2 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2230822&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "An email client simple and efficient" What do you dislike about Thunderbird? When it comes to re-set up an email account it can become a bit complicated, Thunderbird tends to use automatic processes that can be a pain to stop. ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Small-Business (50 or fewer emp.) 5.0/5 "Super satisfied with Thunderbird" What do you dislike about Thunderbird? From my experience using Thunderbird it could be tricky to do some advanced stuff like exporting groups of rules into another client, eg. if I'm using ##### 3. Sync Issues Users experience **sync issues** that hinder performance, especially with large mailboxes and across multiple devices. [ See 2 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=1226072&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Mid-Market (51-1000 emp.) 4.5/5 "A more peaceful and secure work experience." What do you dislike about Thunderbird? Managing large mailboxes packed with thousands of messages, I’ve noticed the startup slows down—and tasks like search or sync can get resource-heavy. EE Elizabeth E. Small-Business (50 or fewer emp.) 5.0/5 "Synchronize personal and corporate email" What do you dislike about Thunderbird? Works perfectly for all my needs, but the function to create user does not exist yet to synchronize email on different computers. ##### 4. Bug Issues Users experience **bug issues** with Thunderbird, as large mailboxes lead to slow startup and resource-heavy tasks. [ See 1 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2498713&qs=pros-and-cons#reviews) See Related User Reviews ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") U Verified User Mid-Market (51-1000 emp.) 4.5/5 "A more peaceful and secure work experience." What do you dislike about Thunderbird? Managing large mailboxes packed with thousands of messages, I’ve noticed the startup slows down—and tasks like search or sync can get resource-heavy. ##### 5. Confusing Interface Users report a **confusing interface** in Thunderbird, particularly with differing modes and inconsistent features across versions. [ See 1 mentions ](https://www.g2.com/products/thunderbird/reviews?filters%5Bsentiment_snippet%5D=2230709&qs=pros-and-cons#reviews) See Related User Reviews ![Luca P.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Luca P.") LP Luca P. Small-Business (50 or fewer emp.) 5.0/5 "Robust open-source email suite for desktop and mobile" What do you dislike about Thunderbird? There is still a learning curve in a few areas. Unified folders have multiple entry points and can be conceptually different between IMAP and POP setu ## Top-Rated Alternatives [ ![Front](https://images.g2crowd.com/uploads/product/hd_favicon/1fe01c88159eb52ed7e93d98cdce08a5/front.svg "Front") Front 4.7/5(2,507) ](https://www.g2.com/products/front/reviews) [ ![Spike](https://images.g2crowd.com/uploads/product/hd_favicon/ad8d6b14c633bf13965f58ef40a77f0f/spike.svg "Spike") Spike 4.6/5(262) ](https://www.g2.com/products/spike/reviews) [ ![Mailbird](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_53eb6f8d708e7c322d572e28b89709cc/mailbird.png "Mailbird") Mailbird 3.6/5(101) ](https://www.g2.com/products/mailbird/reviews) [ View All Alternatives ](https://www.g2.com/products/thunderbird/competitors/alternatives) ![Benito A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Benito A.") BA Benito A. Business administrator Pharmaceuticals Small-Business (50 or fewer emp.) 1/26/2023 "Email on PC" 4.5/5 What do you like best about Thunderbird? Manage email by folders and spam filters, sync email server to my PC to have immediate access to my email. Lyrics, images, music and many free options with server access and limits outside the PC. Themes and compatible with Linux and Windows. Free. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? It does not have a version for Android and access to synchronize access data with the cloud. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? Email on PC with server data without deleting the main one, added filters for spam and writing with direct translation. Analysis of files and letter models. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Associate Professor D.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Associate Professor D.") AD Associate Professor D. Senior Technology Architect Mid-Market (51-1000 emp.) 2/17/2023 "Great email software" 4.5/5 What do you like best about Thunderbird? Thunderbird is a stable email app that is easily configurable, and portable across many platforms. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? It is not so well known compared to others. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? The numerous portability issues. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Abhishek T.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Abhishek T.") AT Abhishek T. Small-Business (50 or fewer emp.) 2/15/2023 "t's very simple to use and it has an easy to use interface." 4/5 What do you like best about Thunderbird? t's very simple to use and it has an easy to use interface. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? It is simply the best. There is no any qualities which anyone can dislike. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? Adaptable junk mail settings – Thunderbird allows you to customize what funnels into your spam folder. ... Privacy – Thunderbird offers offline email encryption. ... Storage – If you are worried about storage Thunderbird can support remote server functionality. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite AK Akash K. SEO Specialist Mid-Market (51-1000 emp.) 5/31/2022 "Free and Feature Rich Email Client" 4/5 What do you like best about Thunderbird? The best thing I like is we can add multiple accounts, switch them easily and use them in different tabs. It supports HTML Rich email body editor and Helps me to customize the email draft, signature, and line. Easy to set up and use. It's lightweight. Easy to structure the folder, subfolder, rules and filters. It has an integrated PDF reader. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? If you are beginner and don't know about POP IMAP, SMTP, SSL/TLS than it would take more time to configure the email. It took more time to establish the connection with server for the first time after that I have nothing to complaint about thunderbird email client. Review collected by and hosted on G2.com. Recommendations to others considering Thunderbird: It is the best email client for using multiple mail with multiple mail server in a single email software. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? It helps me to synchronize the multiple mail with multiple server in a single email client. Easy to use all emails at a time in different tabs. The best part is it stores the mail locally. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Pradeep G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Pradeep G.") PG Pradeep G. Digital Marketing Executive - Marketing Tech & Operations Mid-Market (51-1000 emp.) 8/5/2022 "Open Source, light weight and user friendly" 5/5 What do you like best about Thunderbird? Easy to configure and manage multiple email accounts with the help of easy navigation and simple UI. Easy to install and manage the plugins as per the need or customization without any hassle. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? Two-way syncing with google calendar is not available and I have tried multiple plugins but the result is not as excepted and the system should be allowed to import the bigger email files. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? Previously, we are using webmail and outlook which is not user-friendly and webmail is 100% web-based after migration to Thunderbird the whole problem and experience issue has solved and its Free and thunderbird are Best in the email client segment. Review collected by and hosted on G2.com. Show More 8/26/2022 Current UserValidated ReviewerIncentivizedSource: G2 invite ![Christopher T.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Christopher T.") CT Christopher T. Print Shop Coordinator / Graphic Designer Small-Business (50 or fewer emp.) 2/10/2023 "A decent Email Client" 3/5 What do you like best about Thunderbird? What I like the most about Thunderbird is the fact I can have multiple email accounts in one email client. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? The lack of features that come with the basic download. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? I wanted to have all my emails in one area. The add-ons are easy to come by because it's open source. This help manage my workload. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: G2 invite ![Mohammad Ali B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Mohammad Ali B.") MB Mohammad Ali B. Marketing Director Small-Business (50 or fewer emp.) 2/7/2023 "Thunderbird the thunderous email software" 4/5 What do you like best about Thunderbird? It is an excellent tool to use as email software. Very user-friendly and has a straightforward interface. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? While using Thunderbird we did not find any downside to the software. The only glitch that we found was that it tends to hang at times. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? Helps to try and find my clients effectively and effortlessly. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Yuritza A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Yuritza A.") YA Yuritza A. Public accounting Consumer Goods Small-Business (50 or fewer emp.) 12/13/2022 "Synchronize email on my PC" 4.5/5 What do you like best about Thunderbird? It works perfect for synchronizing email from my workplace, it is easy to install, connection and automatic search of domain server, address and password. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? I do not have availability to synchronize Email on my mobile phone; there is no Mobile version. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? Synchronize emails from my work server with Thunderbird on my PC, reply and download all the files that come to my email. Organize by calendar, total control of the system and security of the data and information provided. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Ahmed B.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Ahmed B.") AB Ahmed B. Senior Lead System Engineer Mid-Market (51-1000 emp.) 2/9/2023 "I used to work with thunderbird on Mac and windows, app is good for any Linux mail server" 4/5 What do you like best about Thunderbird? I used to work with thunderbird on Mac and windows, app is good on mac and windows,app is good for any Linux mail server as email client Review collected by and hosted on G2.com. What do you dislike about Thunderbird? Lot's of bug with exchange servers, and leaks of training for end users Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? Until now was the estability of the app Review collected by and hosted on G2.com. Show More 1/23/2024 Validated ReviewerIncentivizedSource: G2 invite ![Salini K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Salini K.") SK Salini K. Software Development Manager Small-Business (50 or fewer emp.) 4/26/2022 "Free, Aesthetic & Very Effective Mailing Platform" 4.5/5 What do you like best about Thunderbird? What things I like most in Thunderbird are as below: - Very quick and very simple easy-to-use interface. - It provides top-notch security for our emails. - Email management was made very easy and very quick. - With the help of pCloud for Mozilla Thunderbird, people may share large amounts of data. Review collected by and hosted on G2.com. What do you dislike about Thunderbird? What things I don't like most in Thunderbird are as below: - The UI is a little bit outdated but works very well and is easy to use. - Many major functionalities are relying on multiple addons. - There is no drag and drop function available. Review collected by and hosted on G2.com. Recommendations to others considering Thunderbird: My overall experience is very good with Thunderbird and I also recommend this software for email management because this software is completely free to use. As well It provides too many features. Thunderbird also provides specific email client capabilities, and it enables users to integrate their previous email client's messages, activities, and contact lists. Review collected by and hosted on G2.com. What problems is Thunderbird solving and how is that benefiting you? It helps me a lot in my business as I can easily manage my all email with Thunderbird's easy email management system. I can easily tag and filters all emails and simplify my work as well as saves a lot of time. Thunderbird also improves things by maintaining many emails inbox accounts concentrated in one location, so I never have to monitor separate sites. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ## Work at Mozilla? Claim this profile to respond to reviews, update product info, and reach in-market buyers. 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