Waterfox Source Code

Welcome to Waterfox! Waterfox is now once again fully independent. We'd love to accept help from contributors, so feel free to reach out via Reddit.

An explanation of the Waterfox Source Code Directory Structure and links to project pages can be found at the Directory Structure documents.

For information on how to build Waterfox from the source code and create patches see the quick reference.

Developer Working Hours

Typically, we are available 9:00 🕘 → 17:00 🕔, Monday → Friday. This does not include UK bank holidays or annual leave. During this time we will be programming or responding to queries as and when appropriate.

Roadmap

Q3 2023

Release G6, the latest time by September 26.
Prepare Waterfox for Android for release, ideally by September 26 depending on previous project complexity.
Release updated OSS website, powered by astro.

2H 2023

Implement a native vertical tab implementation. Work has already started for this in the background.
Make profile switching more accessible.

2024

Implement own profile sync service. This is a hard complexity item and no guarantee of this.
Prepare Waterfox for iOS.
Some more special surprises, with work already started.

Name	Name	Last commit message	Last commit date
Latest commit MrAlex94 Feb 28, 2025 38460f5 · Feb 28, 2025 History 988,007 Commits
.cargo	.cargo	Bug 1919678 - Fix rust vendor lint bustage. a=bustage DONTBUILD	Oct 11, 2024
.github	.github	ci: pre-download clang toolchain for faster builds	Feb 28, 2025
.vscode	.vscode	Bug 1858932 - Skip bash and run mach directly on powershell for tasks…	Oct 17, 2023
.zed	.zed	Add Biome support.	Feb 27, 2025
accessible	accessible	Bug 1890155: If we can't get an HWND when clients call IAccessible2::…	Dec 17, 2024
browser	browser	Remove padding in New Tab	Feb 27, 2025
build	build	Randomly assign port number when running PGO.	Feb 27, 2025
caps	caps	Bug 1905843, prevent unexpected use of result site origin, a=diannaS	Sep 20, 2024
chrome	chrome	Bug 1864896: Autofix unused function arguments (general). r=nika,jfkt…	Mar 19, 2024
config	config	Bug 1945535: Update to tzdata 2025a (ESR128). r=spidermonkey-reviewer…	Feb 8, 2025
devtools	devtools	Bug 1830888 - [devtools] Skip frequent macos intermittent browser_dbg…	Jan 31, 2025
docs	docs	[WFX-350] Replace 'his or her' with 'their'.	Feb 27, 2025
docshell	docshell	Bug 1826867 - Use NS_GetFinalChannelURI instead of GetURI in SessionH…	Feb 8, 2025
dom	dom	Add native support for the Unity menu bar.	Feb 27, 2025
editor	editor	Bug 1930050 - Make `AutoRangeArray` check the container type r=m_kato…	Nov 13, 2024
extensions	extensions	Bug 1906744 - Check if constructor is enabled before installing named…	Aug 8, 2024
gfx	gfx	Bug 1940027 - Use nsACString in jar code a=dmeehan	Feb 12, 2025
gradle/wrapper	gradle/wrapper	Backed out 2 changesets (bug 1900345) for preventing Fenix builds wit…	Jun 12, 2024
hal	hal	Bug 1875484 - Add missing null check in Hal code. r=gsvelto	Jan 22, 2024
image	image	[WFX-666] Extended JPEG-XL support.	Feb 27, 2025
intl	intl	Bug 1940027 - Use nsACString in jar code a=dmeehan	Feb 12, 2025
ipc	ipc	[WFX-202] Rename Firefox related references to their relevant counter…	Feb 27, 2025
js	js	Bug 1946004 - Widen i32 return values in GenerateJitEntry. r=rhunt, a…	Feb 13, 2025
layout	layout	Add native support for the Unity menu bar.	Feb 27, 2025
media	media	Bug 1918647 - Update libjxl to v0.11.0 r=saschanaz	Feb 27, 2025
memory	memory	Bug 1875768 - Call the appropriate postfork handler on MacOS r=glandi…	Jul 4, 2024
mfbt	mfbt	Bug 1907001 - Add MOZ_HAS_CLANG_ATTRIBUTE r=glandium, a=dmeehan	Jul 25, 2024
mobile	mobile	Bug 1924167 - shim updates; a=dmeehan	Nov 7, 2024
modules	modules	Add native support for the Unity menu bar.	Feb 27, 2025
mozglue	mozglue	Bug 1898171 - Add SanitizedString profiler marker format r=acreskey,p…	Jun 4, 2024
netwerk	netwerk	Add a session restore checkbox when quitting the browser.	Feb 27, 2025
nsprpub	nsprpub	Bug 1879120 - Remove all python deprecation warning: invalid escape s…	Feb 26, 2024
other-licenses	other-licenses	[WFX-209] Base configuration options.	Feb 27, 2025
parser	parser	Bug 1910951 - Avoid incorrect use of nsParser when meta refresh is ad…	Aug 13, 2024
python	python	[WFX-199] Stop building pingsender executable.	Feb 27, 2025
remote	remote	Bug 1913000 - Add more rate limiting to History interface. r=emilio a…	Oct 1, 2024
security	security	Add Mac Hardened Runtime entitlement files to the tree.	Feb 27, 2025
services	services	[WFX-202] Rename Firefox related references to their relevant counter…	Feb 27, 2025
servo	servo	Bug 1935471 - Make resolving image urls thread-safe. r=dshin, a=RyanVM	Jan 23, 2025
startupcache	startupcache	Bug 1882581: Implement `@scope` parsing. r=firefox-style-system-revie…	Mar 19, 2024
storage	storage	Bug 1842682 - Remove unused ChromeUtils.requestIOActivity and IOActiv…	May 17, 2024
supply-chain	supply-chain	Bug 1873210 - Support langpacks in the crashreporter client a=RyanVM	Jan 15, 2025
taskcluster	taskcluster	Fix signing and notarizing in GHA.	Feb 27, 2025
testing	testing	[WFX-202] Rename Firefox related references to their relevant counter…	Feb 27, 2025
third_party	third_party	Bug 1918647 - Update libjxl to v0.11.0 r=saschanaz	Feb 27, 2025
toolkit	toolkit	Update ResetProfile.sys.mjs to hardcode MOZ_APP_NAME as firefox	Feb 27, 2025
tools	tools	Fix signing and notarizing in GHA.	Feb 27, 2025
uriloader	uriloader	Bug 1923655 - stop browser_protocol_ask_dialog_permission.js failing …	Oct 30, 2024
view	view	Bug 1895928 - PresShell::ScheduleViewManagerFlush shouldn't set the l…	May 10, 2024
waterfox	waterfox	fix: prevent "(NULL)" display in status bar context menu	Feb 28, 2025
widget	widget	Unity global menu.	Feb 27, 2025
xpcom	xpcom	Add native support for the Unity menu bar.	Feb 27, 2025
xpfe/appshell	xpfe/appshell	Bug 1905253 - Add a null-check in AppWindow::MoveResize. r=smaug, a=R…	Jul 16, 2024
.arcconfig	.arcconfig	Bug 1915602 - set phabricator callsign to ESRONETWOEIGHT. a=release D…	Sep 17, 2024
.babel-eslint.rc.js	.babel-eslint.rc.js	Bug 1830265 - Enable ESLint and Prettier on .babel-eslint.rc.js. r=Gijs	May 4, 2023
.clang-format	.clang-format	Bug 1851529 - Set clang-format ColumnLimit consistently. r=sylvestre,…	Sep 5, 2023
.clang-format-ignore	.clang-format-ignore	Bug 1889978 - Vendor ffmpeg 7.0 headers. r=media-playback-reviewers,f…	Apr 30, 2024
.cron.yml	.cron.yml	Bug 1906699 - enable cron-bouncer-check on mozilla-esr128. r=releng-r…	Jul 9, 2024
.eslintignore	.eslintignore	Bug 1897221 - Exclude more Rust/mobile build artifacts from ESLint & …	May 20, 2024
.eslintrc-rollouts.js	.eslintrc-rollouts.js	Bug 1915540 - addressing ESlint test failure. r=dsmith	Sep 4, 2024
.eslintrc-test-paths.js	.eslintrc-test-paths.js	Bug 1900002 - Move tabbrowser tests into a browser/ folder. r=fronten…	Jun 4, 2024
.eslintrc.js	.eslintrc.js	Bug 1897898 - Separate out ESLint rule rollouts configurations to a s…	May 21, 2024
.git-blame-ignore-revs	.git-blame-ignore-revs	Bug 1882465 - Update .hg-annotate-ignore-revs and .git-blame-ignore-r…	Apr 4, 2024
.gitattributes	.gitattributes	Bug 770286: Prevent git LF-to-CRLF autoconversion r=glandium	Jul 6, 2019
.gitignore	.gitignore	Bug 1894617: ignore the root .vscode directory too; r=sheehan	May 2, 2024
.gitmodules	.gitmodules	[WFX-207] Update l10n files.	Feb 27, 2025
.hg-annotate-ignore-revs	.hg-annotate-ignore-revs	Bug 1882465 - Update .hg-annotate-ignore-revs and .git-blame-ignore-r…	Apr 4, 2024
.hg-format-source	.hg-format-source	Bug 1556393 - Pre 1 (m-c): Update .hg-format-source to use Prettier w…	Jul 3, 2019
.hgignore	.hgignore	Bug 1894619 - Remove the invalid regex escape sequences in .hgignore.…	May 2, 2024
.hgtags	.hgtags	No bug - Tagging c685d5844a0e4f99ac535b6ffc641fbd07696c68 with FIREFO…	Feb 24, 2025
.lando.ini	.lando.ini	Bug 1871425: re-enable autoformatting after disabling WPT linter r=ze…	Feb 29, 2024
.lldbinit	.lldbinit	Bug 1603804. Move third_party/python/lldbutils to python/lldbutils. r…	Dec 20, 2019
.mailmap	.mailmap	Bug 1892339 - Add my name to .mailmap r=nika	Apr 19, 2024
.mozconfig	.mozconfig	Re-work mozconfigs.	Feb 27, 2025
.mozconfig-aarch64-apple-darwin	.mozconfig-aarch64-apple-darwin	ci: pre-download clang toolchain for faster builds	Feb 28, 2025
.mozconfig-x86_64-apple-darwin	.mozconfig-x86_64-apple-darwin	ci: pre-download clang toolchain for faster builds	Feb 28, 2025
.mozconfig-x86_64-pc-linux-gnu	.mozconfig-x86_64-pc-linux-gnu	ci: pre-download clang toolchain for faster builds	Feb 28, 2025
.mozconfig-x86_64-pc-windows-msvc	.mozconfig-x86_64-pc-windows-msvc	ci: pre-download clang toolchain for faster builds	Feb 28, 2025
.prettierignore	.prettierignore	Bug 1894958: Render more complex WebGL canvases r=timhuang,sylvestre,…	Jun 5, 2024
.prettierrc.js	.prettierrc.js	Bug 1826062 - Upgrade Prettier to v2.0.5. r=mossop	May 20, 2023
.stylelintignore	.stylelintignore	Bug 1899373 - Update PDF.js to 24e12d515dce2f11b392410dd6e6e9926270ac…	May 30, 2024
.stylelintrc.js	.stylelintrc.js	Bug 1866802 - Move ASRouterAdmin tool to about:asrouter and its own c…	Dec 14, 2023
.taskcluster.yml	.taskcluster.yml	Bug 1831143 - use new mozillareleases/gecko_decision:4.1.0 docker ima…	Aug 22, 2023
.trackerignore	.trackerignore	Bug 1486468 - Add .trackerignore file to avoid GNOME Tracker indexing…	Aug 27, 2018
.yamllint	.yamllint	Bug 1858299 - moz.yaml file should not start with --- r=tjr	Oct 13, 2023
.ycm_extra_conf.py	.ycm_extra_conf.py	Bug 1801836 - Remove no longer necessary 'from __future__' imports. r…	Dec 23, 2022
AUTHORS	AUTHORS	Bug 1481409 - Use HTTPS protocol for Mozilla's Credits link in AUTHOR…	Aug 13, 2018
CLOBBER	CLOBBER	Update configs. IGNORE BROKEN CHANGESETS CLOSED TREE NO BUG a=release…	Feb 3, 2025
Cargo.lock	Cargo.lock	Extend JPEG XL detection/recognition	Feb 27, 2025
Cargo.toml	Cargo.toml	Extend JPEG XL detection/recognition	Feb 27, 2025
GNUmakefile	GNUmakefile	Bug 794723 - Add a default makefile which wraps mach. r=gps	Feb 6, 2015
LICENSE	LICENSE	Bug 547914 - Replace /LICENSE with a mention of where the canonical l…	Feb 23, 2010
Makefile.in	Makefile.in	Bug 1873959 - Only force generation of buildid.h and source-repo.h du…	Jan 16, 2024
README.md	README.md	Update README.md	Feb 27, 2025
aclocal.m4	aclocal.m4	Bug 1897978 - Move MOZ_ANDROID_NDK from old-configure to moz.configur…	Jun 4, 2024
biome.json	biome.json	Add Biome support.	Feb 27, 2025
build.gradle	build.gradle	Bug 1892641 - include timestamps in BUILDSTATUS lines from gradle, r=…	Apr 30, 2024
client.mk	client.mk	Bug 1802075 - Avoid calling "--stop-server" as a command on local bui…	Nov 23, 2022
client.py	client.py	Bug 1801836 - Remove no longer necessary 'from __future__' imports. r…	Dec 23, 2022
configure	configure	Bug 1787977 - Include configure in the tree. r=firefox-build-system-r…	Aug 30, 2022
configure.py	configure.py	Bug 1861273 - Add some profile markers for sub-phases of configure. r…	Oct 26, 2023
gradle.properties	gradle.properties	Bug 1881094 - 7. cleanup firefox-android exclusions in license.yml r=…	May 9, 2024
gradlew	gradlew	Backed out 2 changesets (bug 1900345) for preventing Fenix builds wit…	Jun 12, 2024
gradlew.bat	gradlew.bat	Bug 1878410 - Update Gradle to version 8.6. r=geckoview-reviewers,mca…	Feb 5, 2024
mach	mach	Bug 1843209 - Bump Mach's minimum Python version to `3.8` r=firefox-b…	Dec 12, 2023
mach.cmd	mach.cmd	Bug 1750874: Support launching Mach with `py` instead of `python` r=g…	Jan 21, 2022
mach.ps1	mach.ps1	Bug 1761633 - Silence the possible error from Get-Command r=mhentges …	Mar 28, 2022
mots.yaml	mots.yaml	Bug 1837575 - Move Tabbed Browser related files to browser/components…	May 17, 2024
moz.build	moz.build	[WFX-209] Base configuration options.	Feb 27, 2025
moz.configure	moz.configure	Bug 1776255 - Add the appropriate 'when' to all 'option' that end up …	May 23, 2024
mozilla-config.h.in	mozilla-config.h.in	Bug 1802290 - Remove +x permissions on more files r=linter-reviewers,…	Jan 3, 2023
old-configure.in	old-configure.in	Bug 1897973 - Move MOZ_TOOL_VARIABLES from old-configure to moz.confi…	Jun 4, 2024
package-lock.json	package-lock.json	Bug 1898556 - Remove eslint-plugin-file-header, update various node m…	May 24, 2024
package.json	package.json	Bug 1898556 - Remove eslint-plugin-file-header, update various node m…	May 24, 2024
pyproject.toml	pyproject.toml	Bug 1879558 - Reactivate invalid escape sequence warning in ruff r=ah…	Feb 28, 2024
settings.gradle	settings.gradle	Bug 1895781 - Move the App Services and Glean auto-publish logic to i…	May 10, 2024
substitute-local-geckoview.gradle	substitute-local-geckoview.gradle	Bug 1752381 - only parse stdout in substitute-local-geckoview. r=nale…	Feb 2, 2022
test.mozbuild	test.mozbuild	Bug 1677775 - reformat .mozbuild files with Black r=linter-reviewers,…	Dec 8, 2023

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