Fira Sans

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Fira Sans
Fira Sans sample image.png
Category Sans-serif
Classification Humanist
Designer(s) Erik Spiekermann
Ralph du Carrois
Date released 2013
License SIL Open Font License
Design based on FF Meta

Fira Sans (initially called Feura Sans) is a humanist sans-serif typeface designed by Erik Spiekermann, Ralph du Carrois, Anja Meiners and Botio Nikoltchev of Carrois Type Design for the Firefox OS.[1][2][3][4] Fira was released in 2013 initially under the Apache License and later reissued under the SIL Open Font License. It is closely related to the Meta typeface designed and developed by Spiekermann in the late 1980s which is used as the brand typeface of the Mozilla Foundation.[5]

In its initial 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.[6] In 2015, Mozilla added a condensed style.[7][8] The family has a large character set including text figures and small caps.

Fira Mono[edit]

Fira Mono
Fira Mono font specimen.png
Category Monospaced
Designer(s) Erik Spiekermann
Date released 2013
License SIL Open Font License
Design based on FF Meta

Fira Sans is accompanied by a monospaced variant called Fira Mono, available in regular, medium, and bold.


  1. ^ "870998 – [Style Guide] Type Guidelines for Firefox OS product page". Retrieved 2013-08-25. 
  2. ^ Erik Spiekermann, “Fira specimen uploaded”, Spiekerblog, 30 July 2013
  3. ^ Fira Sans”,, 20 July 2013
  4. ^ Patryk Adamczyk, “Introducing Feura Sans, a more legible font for mobile”, Mozilla UX Quarterly, Q2 2013 (PDF)
  5. ^ Butterick, Matthew. "Fira Sans: review". Typographica. Retrieved 14 November 2014. 
  6. ^ Try Out Fira Sans: a Free, Open Source Typeface Commissioned by Mozilla”, Do not Lick, 23 May 2014
  7. ^ "Mozilla Fira Sans - Github". Github. Mozilla. Retrieved 29 February 2016. 
  8. ^ "Fira Sans Condensed". Font Squirrel. Retrieved 29 February 2016. 

External links[edit]