Mozilla

The Mozilla Foundation is an American non-profit organization that supports open-source internet technologies and oversees the Mozilla project, best known for the Firefox web browser and related web software and services.

• 🏠 Website
  • mozillafoundation.org #2,061,230
• 💼 Legal name
  • Mozilla Foundation
• 🏤 Headquarters
  • Mountain View, California, United States
• 🗓️ Founded
  • July 2003 (23 years ago)
• 🔗 Links
  • Wikipedia

⚡ Technologies

We track 4 technologies owned or developed by Mozilla Foundation that are used across the web.

#	Technology	Reach The percentage of websites using the technology out of the total number of sites analyzed.
1	PDF.js A Portable Document Format file viewer built with JavaScript and HTML5. FreeOpen source	0.6%
2	Firefox Add-ons Firefox Add-ons, also known as AMO, is Mozilla's official marketplace for discovering, installing, and managing extensions and themes for the Firefox browser. Free	0.02%
3	Pocket Button The Pocket Button allowed users to save content to Pocket, a social bookmarking service that shut down in 2025. FreeLegacy	0.02%
4	MPL License A free and open-source weak copyleft license that is more restrictive than the permissive software BSD-style licenses.

🗃️ About This Data

• We evaluate the popularity of technologies based on the number of websites where we detect their usage.
• Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
• This report is based on the analysis of 4,046,631 websites.
• Statistics were last calculated on November 12, 2026.
• For more details, see our methodology and disclaimer.