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    45 repositories

    • remote-settings-devtools

      Public
      about:remotesettings
      JavaScript
      •
      Mozilla Public License 2.0
      •8•17•8•1•Updated Nov 4, 2025Nov 4, 2025

    • searchengine-devtools

      Public
      A tool to help test search engine configuration changes
      JavaScript
      •
      Mozilla Public License 2.0
      •9•10•0•1•Updated Nov 3, 2025Nov 3, 2025

    • 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 all of them at once. You can use the troubleshooting mode to quickly find out which RFP target is causing the breakage.
      TypeScript
      •
      Mozilla Public License 2.0
      •0•5•0•1•Updated Oct 21, 2025Oct 21, 2025

    • mozilla-vpn-extension

      Public
      * Coming soon *
      JavaScript
      •
      Mozilla Public License 2.0
      •3•2•1•1•Updated Oct 16, 2025Oct 16, 2025

    • ipp-addon-activator

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

    • aboutsync

      Public
      A Firefox addon to show information about Sync.
      JavaScript
      •
      Mozilla Public License 2.0
      •21•93•19•5•Updated Sep 25, 2025Sep 25, 2025

    • xpi-manifest

      Public
      Manifest repository for mozilla-extensions
      Python
      •
      Mozilla Public License 2.0
      •33•6•8•0•Updated Sep 16, 2025Sep 16, 2025

    • COBA

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

    • autofill-devtools

      Public
      JavaScript
      •
      Mozilla Public License 2.0
      •1•2•0•0•Updated Sep 4, 2025Sep 4, 2025

    • china-newtab

      Public
      Extension part of the customized newtab for Fx China repack
      JavaScript
      •
      Mozilla Public License 2.0
      •3•1•0•9•Updated Sep 2, 2025Sep 2, 2025

    • tabtweak

      Public
      Minimal tweak to Firefox's default tab behavior
      JavaScript
      •
      Mozilla Public License 2.0
      •1•4•0•6•Updated Sep 2, 2025Sep 2, 2025

    • webcompat-addon

      Public archive
      Hotfixing the web, one Intervention at a time.
      JavaScript
      •
      Mozilla Public License 2.0
      •18•62•5•2•Updated Jun 2, 2025Jun 2, 2025

    • nimbus-devtools

      Public
      Developers Tools for the Nimbus experimentation platform.
      TypeScript
      •
      Mozilla Public License 2.0
      •4•3•25•0•Updated Apr 30, 2025Apr 30, 2025

    • xpi-template

      Public
      Python
      •
      Mozilla Public License 2.0
      •9•2•4•0•Updated Apr 16, 2025Apr 16, 2025

    • newtab-trainhop

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

    • hotfix-intermediate-2018

      Public
      Hotfix for https://bugzilla.mozilla.org/show_bug.cgi?id=1954818
      JavaScript
      •
      Mozilla Public License 2.0
      •0•0•0•0•Updated Mar 21, 2025Mar 21, 2025

    • privileged-test-xpi

      Public
      A test privileged XPI for mozilla-central.
      Creative Commons Zero v1.0 Universal
      •0•0•0•0•Updated Dec 5, 2024Dec 5, 2024

    • 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 seamlessly
      JavaScript
      •
      Mozilla Public License 2.0
      •5•6•15•3•Updated Aug 30, 2024Aug 30, 2024

    • quitter

      Public
      Test extension used to quit firefox
      JavaScript
      •
      Mozilla Public License 2.0
      •3•0•0•3•Updated Jun 14, 2024Jun 14, 2024

    • 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
      •45•63•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•3•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 issues.
      JavaScript
      •
      Mozilla Public License 2.0
      •16•130•0•3•Updated Feb 15, 2024Feb 15, 2024

    • balrog-dryrun

      Public
      JavaScript
      •
      Mozilla Public License 2.0
      •1•0•0•0•Updated Jan 30, 2024Jan 30, 2024

    • regrets-reporter

      Public
      The RegretsReporter browser extension, built by the nonprofit Mozilla, lets you flag regrettable recommendations on YouTube.
      Python
      •12•40•21•21•Updated Nov 28, 2023Nov 28, 2023

    • addons-restricted-domains

      Public archive
      JavaScript
      •
      Mozilla Public License 2.0
      •0•1•0•0•Updated Jul 17, 2023Jul 17, 2023

    • secure-proxy

      Public archive
      Firefox Private Network Web Extension
      JavaScript
      •
      Mozilla Public License 2.0
      •34•138•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

    • search-engine-usage-study-relaunch

      Public archive
      A relaunch of the Search Engine Usage Study
      TypeScript
      •
      Mozilla Public License 2.0
      •3•0•0•0•Updated Jan 19, 2023Jan 19, 2023

    • pip-site-specific-wrappers

      Public archive
      JavaScript
      •
      Mozilla Public License 2.0
      •0•0•0•0•Updated Jun 14, 2022Jun 14, 2022