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Thunderbird icon


Desktop Software Tools
Mozilla Thunderbird is a free and open-source[9] cross-platform email client, personal information manager, news client, RSS and chat client developed by the Mozilla Foundation. The project strategy ...was originally modeled after that of the Mozilla Firefox web browser. On December 7, 2004, version 1.0 was released, and received more than 500,000 downloads in its first three days of release, and 1,000,000 in ten days.[10][11] On July 6, 2012, Mozilla announced the company was dropping the priority of Thunderbird development because the continuous effort to extend Thunderbird's feature set was mostly fruitless. The new development model shifted to Mozilla offering only "Extended Support Releases", which deliver security and maintenance updates, while allowing the community to take over the development of new features.[12][13] Source:Wikipedia Read moreless
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Thunderbird Reviews

We have 2 reviews for Thunderbird. The average overall ratings is 3.5 / 5 stars.

Write a Review
Guest avatar
Thunderbird Review
written by syed on 2019-08-05 13:35:11
Ease of Use
Customer Service
Value For Money

Overall Opinion: Everything is good but recently it started creating popstate-xx.dat folders and keeps increasing the number of empty folders. Nobody able to handle this, no support, no solution. Just keep them deleting and they will keep creating all the time.

Pros: -

Cons: -

grex avatar
My Opinion on Thunderbird
written by grex on 2018-03-06 08:05:01
Ease of Use
Customer Service
Value For Money

Overall Opinion: Thunderbird is a powerful e-mail client and an excellent alternative to paid, premium products. It has many of the same features as its counterparts for the best price - free. Thunderbird has not had substantial new features added in several years. However, the program retains key features. These include smart folders, tabbed e-mail, powerful search tools and a simple e-mail setup wizard. It also enables a number of add-ons that add additional functions, such as a calendar, to Thunderbird. Like Gmail and Outlook, it searches for words like "attachment" and reminds you to attach a file if you forgot to do so. Thunderbird is available for Windows, Mac OS and Linux. It is open source and entirely free. Because it is open source, there is a large support community that can help users who are having issues. The interface itself is a little dated, but perfectly serviceable and highly customizable. The largest downside to Thunderbird is Mozilla's wavering support of the project. The non-profit has made it clear that they would prefer to stop supporting Thunderbird in order to devote more resources to Firefox. While Mozilla has said they will keep Thunderbird and a new beta was just launched in early 2018, their wavering support of the program is a worrying sign for users looking to adopt Thunderbird, especially businesses hoping to integrate it into their operations. Even if support from current developer Mozilla does cease, other developers have expressed interest in picking it up. If that happens, however, it's very possible the program could see substantial changes or a drop in quality. In short, Thunderbird's future is unknown. Aside from that unfortunate reality, Thunderbird is an excellent alternative to Microsoft Outlook. It is also an excellent option for anyone with multiple e-mail accounts from multiple hosts to manage their e-mail all in one place.

Pros: Easy setup. Does not require users to know advanced terminology for e-mail settings. All it asks for are your name, e-mail address and password to add an e-mail account. Completely free. Ability to create a personalized e-mail address. Strong open-source community support and troubleshooting. Highly customizable in appearance. Powerful anti-spam and phishing filters.

Cons: Occasional spotty support and updates. At one point Mozilla stopped supporting the program, though they changed their minds and the Thunderbird 59 beta was released in February of 2018. However, this uncertainty increases the likelihood of the program either being changed substantially by another developer or discontinued in the future. No major new feature updates in several years. No compatibility with Microsoft Outlook. Interface a little dated. The program can experience noticeable lag.

grex is using Thunderbird every other week recently.


  • A completely free e-mail application.
  • A one-click address book.
You can always update Thunderbird to add more features!


Thunderbird screenshot 1
Thunderbird screenshot 2
Thunderbird screenshot 3


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About This Article

This page was composed by and published by It was created at 2018-04-29 10:45:00 and last edited by Shoban Chiddarth at 2020-12-04 09:11:53. This page has been viewed 59402 times.

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