Description:
Customizable email client
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Type: Cask
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Latest Version: 140.9.0esr@0
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Tracked Since: Dec 28, 2025
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Links:
Homepage |
@Mozilla |
formulae.brew.sh
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Category: Productivity
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Tags:
email
esr
thunderbird
client
imap
privacy
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Install:
brew install --cask thunderbird@esr
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About:
Mozilla Thunderbird ESR is an extended support release of the popular open-source email client, designed for stability and long-term reliability. It provides a full-featured email experience with robust spam filtering, advanced security, and extensive customization options through add-ons. This version is ideal for organizations and users who prioritize a stable, predictable email environment over frequent feature updates.
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Key Features:
- Extended Support Release (ESR) for maximum stability
- Powerful built-in spam and junk mail filtering
- Support for multiple email accounts and protocols (IMAP, SMTP, POP3)
- Integrated calendar and task management (via Lightning add-on)
- Robust privacy and security features, including phishing protection
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Use Cases:
- Managing multiple email accounts from a single unified interface
- Corporate or organizational environments requiring a stable email client
- Users needing advanced customization through a rich ecosystem of add-ons
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Alternatives:
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Apple Mail
– Native macOS client, more tightly integrated but less customizable
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Microsoft Outlook
– Commercial suite with deep integration into Microsoft 365 ecosystem
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Spark
– Modern, freemium client focused on smart inbox and team collaboration
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| Detected |
Version |
Rev |
Change |
Commit |
| Mar 24, 2026 10:53pm |
140.9.0esr |
0 |
VERSION_BUMP |
3b23aaf3 |
| Mar 10, 2026 7:55pm |
140.8.1esr |
0 |
VERSION_BUMP |
f76c0a1a |
| Feb 24, 2026 8:00pm |
140.8.0esr |
0 |
VERSION_BUMP |
7b4d147d |
| Feb 16, 2026 5:11pm |
140.7.2esr |
0 |
VERSION_BUMP |
22435262 |
| Jan 27, 2026 7:56pm |
140.7.1esr |
0 |
VERSION_BUMP |
0814dc3e |
| Jan 13, 2026 11:01pm |
140.7.0esr |
0 |
VERSION_BUMP |
69614663 |
| Sep 17, 2025 2:38pm |
140.3.0esr |
0 |
VERSION_BUMP |
e1adbda3 |
| Sep 16, 2025 2:57pm |
140.2.1esr |
0 |
VERSION_BUMP |
5923f57a |
| Sep 15, 2025 1:06pm |
128.14.0esr |
0 |
VERSION_BUMP |
c459aa6c |
| Aug 19, 2025 10:47pm |
128.14.0esr |
0 |
VERSION_BUMP |
6418de8c |
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