Thunderbird email client

E136519

cross-platform software desktop application email client feed reader free software news client open-source software

Thunderbird email client is a free, open-source, cross-platform email application known for its extensibility, strong privacy features, and support for multiple accounts and protocols.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (4)

Label	Occurrences
Mozilla Thunderbird	6
Mozilla Thunderbird with Lightning	2
Thunderbird email client canonical	2
Mozilla Thunderbird Lightning	1

How this entity was disambiguated

This entity first appeared as the object of triple T1196276 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Thunderbird email client
Context triple: [Mozilla Foundation, stewards, Thunderbird email client]

A. Netscape Mail
Netscape Mail was an early email client developed by Netscape Communications Corporation, widely used in the 1990s as part of the Netscape Communicator internet suite.
B. Outlook
Outlook is an opinion and analysis section of The Washington Post featuring commentary, essays, and in-depth perspectives on current events and issues.
C. Outlook
Outlook is Microsoft’s email and personal information management application that provides integrated email, calendar, contacts, and task functionality for individuals and organizations.
D. Mozilla SeaMonkey
Mozilla SeaMonkey is an all-in-one internet application suite that includes a web browser, email and newsgroup client, HTML editor, and other tools, continuing the legacy of the classic Mozilla Application Suite.
E. Lotus Notes
Lotus Notes is a collaborative client-server software platform best known for its email, calendaring, and business application capabilities, widely used in enterprises for groupware and workflow solutions.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Thunderbird email client
Target entity description: Thunderbird email client is a free, open-source, cross-platform email application known for its extensibility, strong privacy features, and support for multiple accounts and protocols.

A. Netscape Mail
Netscape Mail was an early email client developed by Netscape Communications Corporation, widely used in the 1990s as part of the Netscape Communicator internet suite.
B. Outlook
Outlook is an opinion and analysis section of The Washington Post featuring commentary, essays, and in-depth perspectives on current events and issues.
C. Outlook
Outlook is Microsoft’s email and personal information management application that provides integrated email, calendar, contacts, and task functionality for individuals and organizations.
D. Mozilla SeaMonkey
Mozilla SeaMonkey is an all-in-one internet application suite that includes a web browser, email and newsgroup client, HTML editor, and other tools, continuing the legacy of the classic Mozilla Application Suite.
E. Lotus Notes
Lotus Notes is a collaborative client-server software platform best known for its email, calendaring, and business application capabilities, widely used in enterprises for groupware and workflow solutions.
F. None of above. chosen

Statements (56)

Predicate	Object
instanceOf	cross-platform software ⓘ desktop application ⓘ email client ⓘ feed reader ⓘ free software ⓘ news client ⓘ open-source software ⓘ
calendarIntegration	Lightning ⓘ
developer	MZLA Technologies Corporation ⓘ
feature	address book ⓘ advanced search ⓘ conversation view (via add-ons or built-in in later versions) ⓘ global inbox ⓘ junk mail filtering ⓘ message filters ⓘ message tagging ⓘ phishing protection ⓘ tabbed email interface ⓘ
formerlyKnownAs	Thunderbird email client self-linksurface differs ⓘ surface form: Mozilla Thunderbird
hasPrivacyFocus	true ⓘ
initialReleaseYear	2004 ⓘ
isFree	true ⓘ
isOpenSource	true ⓘ
license	MPL 2.0 ⓘ surface form: MPL-2.0
operatingSystem	Linux ⓘ Windows ⓘ macOS ⓘ
originalDeveloper	Mozilla ⓘ surface form: Mozilla Corporation Mozilla Foundation ⓘ
programmingLanguage	C++ ⓘ JavaScript ⓘ
repository	https://hg.mozilla.org/comm-central/ ⓘ
supportsAddOns	true ⓘ
supportsAuthentication	GSSAPI ⓘ Kerberos ⓘ NTLM ⓘ OAuth2 ⓘ
supportsCalendar	true ⓘ
supportsEncryption	SSL/TLS ⓘ STARTTLS ⓘ
supportsExtensions	true ⓘ
supportsLocalization	true ⓘ
supportsMultipleAccounts	true ⓘ
supportsMultipleLanguages	true ⓘ
supportsOpenPGP	true ⓘ
supportsProtocol	IMAP ⓘ NNTP ⓘ POP3 ⓘ RSS ⓘ SMTP ⓘ
supportsS_MIME	true ⓘ
supportsStandard	HTML email ⓘ MIME ⓘ plain text email ⓘ
supportsThemes	true ⓘ
website	https://www.thunderbird.net/ ⓘ

How these facts were elicited