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Fira (typeface)

open-source typeface family

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJun 13, 2026
Entity authorityQ93213277 ↗
Source-derived summary

Fira Sans is a humanist sans-serif typeface designed by Erik Spiekermann, Ralph du Carrois, Anja Meiners, Botio Nikoltchev of Carrois Type Design, and Patryk Adamczyk of Mozilla Corporation. The typeface was originally commissioned by Telefónica and Mozilla Corporation as part of the joint effort during the development of Firefox OS. It is a slightly wider and calmer adaptation of Spiekermann's typeface Meta, which was used as Mozilla's brand typeface at the time, but optimized for legibility on (small) screens. With the name “Fira,” Mozilla wanted to communicate the concepts of fire, light, and joy, but with connotatively agnostic language intended to signal the project's global nature. Fira was released in 2013 initially under the Apache License, and later reissued under the SIL Open Font License.

In its first 2013 release, Fira Sans was available in four weights with corresponding italics: light, regular, medium, and bold.

In May 2014, the number of weights was increased to 16. In 2015, Mozilla added a condensed style. The family has a large character set that includes text figures and small caps.

In 2016, with version 4.2, the Mozilla Corporation ended their participation in the Fira Sans project; however, the project was continued by Berlin-based foundry bBox Type GmbH and its partners. That same year, bBox Type GmbH released Fira Sans version 4.301—the final iteration of Fira Sans—and announced that “any future developments will be based on FiraGO.”

FiraGO

FiraGO is a multilingual extension of Fira Sans that includes Arabic, Devanagari, Georgian, Hebrew, and Thai letters, in addition to Latin, Greek, and Cyrillic alphabets in the typeface.

Editorial summary

This brief starts where responsible research should: with the source description of “Fira (typeface)” as open-source typeface family. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—2013, 2014, 2015, 2016—that can be checked directly. The linked authority record independently contributes the date 2013. The account is most persuasive where Fira, typeface and open-source can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as open-source typeface family. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jun 13, 2026. The linked authority identifier is Q93213277. None of the 3 selected statements returned an explicit reference. The first chronological checks are 2013, 2014, 2015 and 2016.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Fira (typeface)”, its source revision and the description used here.
  2. Expand the search: follow Fira (typeface) primary sources, Fira (typeface) archive and Fira research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Fira (typeface)”?
  2. Which institution is responsible for the underlying evidence?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from “Fira (typeface)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.