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    48 repositories

    • remote-settings-devtools

      Public
      about:remotesettings
      JavaScript
      •
      Mozilla Public License 2.0
      •9•22•7•3•Updated Aug 21, 2026Aug 21, 2026

    • searchengine-devtools

      Public
      A tool to help test search engine configuration changes
      JavaScript
      •
      Mozilla Public License 2.0
      •11•13•0•3•Updated Aug 21, 2026Aug 21, 2026

    • nimbus-devtools

      Public
      Developers Tools for the Nimbus experimentation platform.
      TypeScript
      •
      Mozilla Public License 2.0
      •8•9•26•1•Updated Aug 20, 2026Aug 20, 2026

    • aboutsync

      Public
      A Firefox addon to show information about Sync.
      JavaScript
      •
      Mozilla Public License 2.0
      •23•107•19•6•Updated Aug 12, 2026Aug 12, 2026

    • mozilla-vpn-extension

      Public
      * Coming soon *
      JavaScript
      •
      Mozilla Public License 2.0
      •5•8•1•10•Updated Aug 9, 2026Aug 9, 2026

    • xpi-manifest

      Public
      Manifest repository for mozilla-extensions
      Python
      •
      Mozilla Public License 2.0
      •34•8•9•0•Updated Aug 7, 2026Aug 7, 2026

    • xpi-template

      Public
      Python
      •
      Mozilla Public License 2.0
      •8•2•4•1•Updated Jul 30, 2026Jul 30, 2026

    • fingerprinting-protection-debugger

      Public
      This is a Firefox extension to easily manage FPP overrides using checkboxes and troubleshoot websites. You can search, enable and disable specific targets or al…
      TypeScript
      •
      Mozilla Public License 2.0
      •2•11•0•3•Updated Jul 27, 2026Jul 27, 2026

    • privileged-test-xpi

      Public
      A test privileged XPI for mozilla-central.
      Creative Commons Zero v1.0 Universal
      •2•2•0•7•Updated May 22, 2026May 22, 2026

    • cpmanager

      Public
      JavaScript
      •
      Mozilla Public License 2.0
      •3•2•0•3•Updated Mar 30, 2026Mar 30, 2026

    • cehomepage

      Public
      JavaScript
      •
      Mozilla Public License 2.0
      •1•1•0•2•Updated Mar 30, 2026Mar 30, 2026

    • tabtweak

      Public
      Minimal tweak to Firefox's default tab behavior
      JavaScript
      •
      Mozilla Public License 2.0
      •2•5•0•7•Updated Mar 30, 2026Mar 30, 2026

    • autofill-devtools

      Public
      JavaScript
      •
      Mozilla Public License 2.0
      •3•3•0•4•Updated Feb 23, 2026Feb 23, 2026

    • firefox-bridge

      Public
      Firefox Bridge is a web extension which helps Firefox users who also use another browser manage how the two browsers work together and to move between them seam…
      JavaScript
      •
      Mozilla Public License 2.0
      •7•9•15•4•Updated Jan 15, 2026Jan 15, 2026

    • quitter

      Public
      Test extension used to quit firefox
      JavaScript
      •
      Mozilla Public License 2.0
      •4•1•0•4•Updated Jan 13, 2026Jan 13, 2026

    • china-newtab

      Public
      Extension part of the customized newtab for Fx China repack
      JavaScript
      •
      Mozilla Public License 2.0
      •4•2•0•10•Updated Jan 13, 2026Jan 13, 2026

    • balrog-dryrun

      Public
      JavaScript
      •
      Mozilla Public License 2.0
      •2•0•0•1•Updated Jan 13, 2026Jan 13, 2026

    • hotfix-intermediate-2018

      Public archive
      Hotfix for https://bugzilla.mozilla.org/show_bug.cgi?id=1954818
      JavaScript
      •
      Mozilla Public License 2.0
      •0•0•0•0•Updated Nov 27, 2025Nov 27, 2025

    • ipp-addon-activator

      Public archive
      A system add-on to activate IPP feature for f143
      JavaScript
      •
      Mozilla Public License 2.0
      •1•1•0•0•Updated Oct 8, 2025Oct 8, 2025

    • COBA

      Public
      JavaScript
      •0•0•0•0•Updated Sep 4, 2025Sep 4, 2025

    • webcompat-addon

      Public archive
      Hotfixing the web, one Intervention at a time.
      JavaScript
      •
      Mozilla Public License 2.0
      •18•64•5•2•Updated Jun 2, 2025Jun 2, 2025

    • newtab-trainhop

      Public archive
      INACTIVE - newtab may2025 train hop
      inactiveunmaintained
      inactiveunmaintained
      JavaScript
      •
      Mozilla Public License 2.0
      •0•1•0•0•Updated Apr 14, 2025Apr 14, 2025

    • dap-attribution-extension

      Public
      CSS
      •
      Mozilla Public License 2.0
      •0•1•0•0•Updated Apr 18, 2024Apr 18, 2024

    • devtools-adb-extension

      Public
      Web Extension that bundles the ADB binaries needed for USB debugging
      Makefile
      •
      Mozilla Public License 2.0
      •47•73•0•0•Updated Apr 17, 2024Apr 17, 2024

    • dnssec-interference

      Public
      Measurement study of DNSSEC interference by middleboxes
      JavaScript
      •
      Mozilla Public License 2.0
      •4•4•5•9•Updated Feb 22, 2024Feb 22, 2024

    • firefox-translations

      Public archive
      This is a mirror of https://github.com/mozilla/firefox-translations utilized only for deployment purposes, please use that repo for tracking progress and file i…
      JavaScript
      •
      Mozilla Public License 2.0
      •16•130•0•3•Updated Feb 15, 2024Feb 15, 2024

    • regrets-reporter

      Public
      The RegretsReporter browser extension, built by the nonprofit Mozilla, lets you flag regrettable recommendations on YouTube.
      Python
      •12•41•21•21•Updated Nov 28, 2023Nov 28, 2023

    • addons-restricted-domains

      Public archive
      JavaScript
      •
      Mozilla Public License 2.0
      •0•2•0•0•Updated Jul 17, 2023Jul 17, 2023

    • secure-proxy

      Public archive
      Firefox Private Network Web Extension
      JavaScript
      •
      Mozilla Public License 2.0
      •34•140•63•13•Updated Jun 16, 2023Jun 16, 2023

    • search-engine-usage-study

      Public archive
      TypeScript
      •
      Mozilla Public License 2.0
      •3•0•0•5•Updated Mar 31, 2023Mar 31, 2023
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