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Mozilla Thunderbird

Mozilla Thunderbird is a free and open-source personal information manager primarily used as an e-mail client with a calendar and contactbook, as well as an RSS feed reader, chat client (IRC/XMPP/Matrix), and news client. Operated by MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, Thunderbird is an independent, community-driven…

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Research this topic

Explore the main themes, entities and connections around Mozilla Thunderbird. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

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Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Available in
65 languages
Developers
Mozilla Foundation (formerly Mozilla Messaging) · MZLA Technologies Corporation
Engines
Gecko, SpiderMonkey
License
MPL-2.0
Operating system
Windows 10 or later; macOS 10.15 or later; FreeBSD; Linux; OpenIndiana; Android
Preview release
154.0beta (29 July 2026) [±]

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Email features

Other features

Cross-platform support

History and development

Thunderbird Pro

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Mozilla Thunderbird

Nodes139
Edges138
Triples29
Avg. degree1.99
Density0.014388
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Mozilla Thunderbird

Top relations

Developers · 2
Mozilla Thunderbird → Mozilla Foundation (formerly Mozilla Messaging), MZLA Technologies Corporation
Available in · 1
Mozilla Thunderbird → 65 languages
Engines · 1
Mozilla Thunderbird → Gecko, SpiderMonkey
License · 1
Mozilla Thunderbird → MPL-2.0
Operating system · 1
Mozilla Thunderbird → Windows 10 or later; macOS 10.15 or later; FreeBSD; Linux; OpenIndiana; Android
Preview release · 1
Mozilla Thunderbird → 154.0beta (29 July 2026) [±]
Release · 1
Mozilla Thunderbird → July 28, 2003; 23 years ago (2003-07-28)
Repository · 1
Mozilla Thunderbird → https://hg-edge.mozilla.org/releases/comm-release/
Size · 1
Mozilla Thunderbird → 50 MB
Stable release · 1
Mozilla Thunderbird → Monthly release: 154.0 / 18 August 2026 ESR: 153.0.3esr / 11 August 2026

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

thunderbird mozilla support email version android release announced development features foundation firefox project new would client available k-9 also team

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Mozilla ThunderbirdAvailable in65 languages1.00infobox
Mozilla ThunderbirdDevelopersMozilla Foundation (formerly Mozilla Messaging)1.00infobox
Mozilla ThunderbirdDevelopersMZLA Technologies Corporation1.00infobox
Mozilla ThunderbirdEnginesGecko, SpiderMonkey1.00infobox
Mozilla ThunderbirdLicenseMPL-2.01.00infobox
Mozilla ThunderbirdOperating systemWindows 10 or later; macOS 10.15 or later; FreeBSD; Linux; OpenIndiana; Android1.00infobox
Mozilla ThunderbirdPreview release154.0beta (29 July 2026) [±]1.00infobox
Mozilla ThunderbirdReleaseJuly 28, 2003; 23 years ago (2003-07-28)1.00infobox
Mozilla ThunderbirdRepositoryhttps://hg-edge.mozilla.org/releases/comm-release/1.00infobox
Mozilla ThunderbirdSize50 MB1.00infobox
Mozilla ThunderbirdStable releaseMonthly release: 154.0 / 18 August 2026 ESR: 153.0.3esr / 11 August 20261.00infobox
Mozilla ThunderbirdTypePersonal information manager, Email client, Instant messaging client, News client, Feed reader1.00infobox
Mozilla ThunderbirdWebsitewww.thunderbird.net1.00infobox
Mozilla ThunderbirdWritten inC, C++, JavaScript, CSS, Rust, XUL, XBL1.00infobox
Mozilla Thunderbirdis afree and open-source personal information manager primarily used as an e-mail client with a calendar and contactbook0.90text

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
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