public/firefox: The official repository of Mozilla's Firefox web browser.

Watch

mirror of https://github.com/mozilla-firefox/firefox.git synced 2026-11-13 02:06:45 -06:00

The official repository of Mozilla's Firefox web browser. https://www.firefox.com/

JavaScript 32.8%
C++ 23.4%
HTML 21.5%
C 10.1%
Kotlin 3.8%
Other 8.1%

Find a file

Repository files (latest commit first)
Filename	Latest commit message	Latest commit date
Maile Lucks 3cf6573a36 Bug 2083834 - UI updates for smart window settings and gated option for auto model - r=pdahiya,fluent-reviewers,settings-reviewers,hjones,flod,cdipersio Differential Revision: https://phabricator.services.mozilla.com/D340970		2026-11-13 01:19:20 +00:00
.agents/skills	Bug 2090203 - Point desktop-theme-probing's devtools MCP notes at the firefox-devtools-mcp docs. r=ai4dev-reviewers,padenot DONTBUILD	2026-11-11 14:13:06 +00:00
.cargo	Bug 2090944 - Ignore RUSTSEC-2026-0459 libsqlite3-sys advisory r=supply-chain-reviewers,afranchuk DONTBUILD	2026-11-09 20:34:46 +00:00
.claude	Bug 2090203 - Point desktop-theme-probing's devtools MCP notes at the firefox-devtools-mcp docs. r=ai4dev-reviewers,padenot DONTBUILD	2026-11-11 14:13:06 +00:00
.codex
.github/workflows	Bug 2072023 - workflows: remove path limitation in pr-handler DOT_GITHUB_OVERRIDE r=conduit-reviewers,sheehan,zeid DONTBUILD	2026-10-05 05:54:39 +00:00
.idea
.vscode
.zed
accessible	Bug 2090413: Fix PDF struct tree crash for text inside invalid MathML markup. r=accessibility-platform-reviewers,morgan	2026-11-12 23:31:23 +00:00
browser	Bug 2083834 - UI updates for smart window settings and gated option for auto model - r=pdahiya,fluent-reviewers,settings-reviewers,hjones,flod,cdipersio	2026-11-13 01:19:20 +00:00
build	Bug 2091692 - gn_processor.py: Include subdirs of root gen dir in LOCAL_INCLUDES. r=firefox-build-system-reviewers,sergesanspaille	2026-11-12 22:49:53 +00:00
caps	Bug `2069010` - Use bounded spans for preference callback lists. r=gstoll,firefox-style-system-reviewers,necko-reviewers,tschuster,media-playback-reviewers,layout-reviewers,padenot,dshin,valentin	2026-11-12 23:24:54 +00:00
chrome	Bug `2079602` - Remove redundant UniquePtr<...> ... = std::make_unique(...) r=nika,necko-reviewers,ipc-reviewers,application-update-reviewers,media-playback-reviewers,webrtc-reviewers,profiler-reviewers,win-reviewers,dom-worker-reviewers,gtk-reviewers,mossop,gstoll,bwc,canova,kershaw,edenchuang,stransky,padenot,yjuglaret,geckoview-reviewers,devtools-reviewers,cookie-reviewers,places-reviewers,dom-storage-reviewers,firefox-style-system-reviewers,layout-reviewers,sandbox-reviewers,webdriver-reviewers,geoprovider-reviewers,crashreporting-reviewers,device-api-reviewers,media-webspeech-reviewers,mac-reviewers,chutten,bobowen,nchevobbe,timhuang,pehrsons,dshin,mstange,jari,m_kato,spohl,masayuki	2026-10-27 10:44:29 +00:00
config	Bug 2091692 - Escape commas when formatting generated file flags. r=firefox-build-system-reviewers,sergesanspaille	2026-11-12 22:49:52 +00:00
devtools	Revert "Bug 2050088 - Remove the jssources profiler feature and collect JS source text with the js feature. r=profiler-reviewers,extension-reviewers,rpl,mstange" for causing crashes.	2026-11-12 20:12:07 +00:00
docs	Bug 1996168 - Use logical properties for spacing/positioning r=geckoview-reviewers,akulyk,tcampbell	2026-11-12 18:36:33 +00:00
docshell	Bug `2069010` - Use bounded spans for preference callback lists. r=gstoll,firefox-style-system-reviewers,necko-reviewers,tschuster,media-playback-reviewers,layout-reviewers,padenot,dshin,valentin	2026-11-12 23:24:54 +00:00
dom	Bug 2085640 - Don't let head CSS/JS loads block fetch(), like XHR. r=necko-reviewers,valentin,jesup	2026-11-12 23:28:27 +00:00
editor	Bug 2090351 - Fix assertions in `HTMLEditUtils::ScanInclusiveNextThingWithIgnoringUnnecessaryLineBreak` and `HTMLEditor::EnsureNoFollowingUnnecessaryLineBreak` r=m_kato	2026-11-11 07:26:40 +00:00
extensions	Bug 2089602 - Test that clearing a site's permissions keeps default permissions. r=permissions-reviewers,timhuang	2026-11-11 14:07:07 +00:00
gfx	Bug 2092335. Remove stale ANGLE vendoring files left over from the old update process. r=gfx-reviewers,jnicol	2026-11-13 01:18:07 +00:00
gradle	Bug 2086641 - Update AGP to version 9.5.1. r=android-build-system-reviewers,ahochheiden	2026-11-12 21:13:41 +00:00
hal	Bug `2079602` - Replace mozilla::MakeUnique by std::make_unique r=nika,geckoview-reviewers,ipc-reviewers,application-update-reviewers,media-playback-reviewers,webrtc-reviewers,cookie-reviewers,places-reviewers,profiler-reviewers,win-reviewers,dom-storage-reviewers,permissions-reviewers,firefox-style-system-reviewers,layout-reviewers,dom-worker-reviewers,sandbox-reviewers,gtk-reviewers,webdriver-reviewers,geoprovider-reviewers,crashreporting-reviewers,device-api-reviewers,media-webspeech-reviewers,manuel,mossop,Sasha,saschanaz,bobowen,dshin,jfkthame,chutten,emz,gstoll,jari,bwc,gsvelto,padenot,canova,asuth,emilio,yjuglaret,azebrowski,valentin	2026-10-26 09:33:33 +00:00
image	Bug 2083604 - Don't warn when canceling a non-cancelable imgRequestProxy. r=gfx-reviewers,wsmind	2026-11-10 10:43:15 +00:00
intl	Bug 2084047 - Declare the js role in the intl locale environment and startup docs r=firefox-source-docs-reviewers,ahal	2026-11-05 19:00:39 +00:00
ipc	Bug 2089498 - Apply [Tainted] to IPCClientInfo. r=dom-worker-reviewers,ipc-reviewers,nika,asuth	2026-11-12 10:31:12 +00:00
js	Bug `2069010` - Use bounded spans for preference callback lists. r=gstoll,firefox-style-system-reviewers,necko-reviewers,tschuster,media-playback-reviewers,layout-reviewers,padenot,dshin,valentin	2026-11-12 23:24:54 +00:00
layout	Bug `2069010` - Use bounded spans for preference callback lists. r=gstoll,firefox-style-system-reviewers,necko-reviewers,tschuster,media-playback-reviewers,layout-reviewers,padenot,dshin,valentin	2026-11-12 23:24:54 +00:00
media	Bug 1529398 - implement iceCandidatePoolSize gathering. r=bwc	2026-11-12 21:07:03 +00:00
memory	Bug 2088575 - Poison entire allocations on Nightly only r=glandium	2026-11-09 22:46:04 +00:00
mfbt	Bug 2090955 - Fix clang-tidy scan for mfbt/DebugOnly.h r=emilio	2026-11-12 13:33:46 +00:00
mobile	No Bug - Import translations from https://github.com/mozilla-l10n/android-l10n CLOSED TREE	2026-11-13 00:13:35 +00:00
modules	Bug `2069010` - Use bounded spans for preference callback lists. r=gstoll,firefox-style-system-reviewers,necko-reviewers,tschuster,media-playback-reviewers,layout-reviewers,padenot,dshin,valentin	2026-11-12 23:24:54 +00:00
mozglue	Revert "Bug 2050088 - Remove the jssources profiler feature and collect JS source text with the js feature. r=profiler-reviewers,extension-reviewers,rpl,mstange" for causing crashes.	2026-11-12 20:12:07 +00:00
netwerk	No Bug, mozilla-central repo-update remote-settings tld-suffixes ct-logs r=release-managers,diannaS	2026-11-12 23:30:05 +00:00
nsprpub
other-licenses	Bug 2079560 - Avoid a quadratic slowdown in mbsdiff on long duplicated data. r=yjuglaret,application-update-reviewers	2026-10-15 16:35:31 +00:00
parser	Bug 2092031 - Clean up dom.shadowdom.shadowRootSlotAssignment.enabled flag r=webidl,emilio	2026-11-12 19:10:44 +00:00
python	Bug 1288201 -- refactor mozfile.py to use redo r=ahochheiden,mach-reviewers,firefox-build-system-reviewers	2026-11-13 01:05:48 +00:00
remote	Revert "Bug 2077159 - Pull Android code coverage results after test runs using adb.py. r=marco" for causing multiple failures at PerTestCoverageUtils.sys.mjs	2026-11-12 16:20:08 +00:00
security	No Bug, mozilla-central repo-update remote-settings tld-suffixes ct-logs r=release-managers,diannaS	2026-11-12 23:30:05 +00:00
services	No Bug, mozilla-central repo-update remote-settings tld-suffixes ct-logs r=release-managers,diannaS	2026-11-12 23:30:05 +00:00
servo	Bug 2092196 - Make log build dependency optional, restrict it to Gecko. r=firefox-style-system-reviewers,emilio	2026-11-12 22:44:02 +00:00
startupcache	Bug `2079602` - Replace mozilla::MakeUnique by std::make_unique r=nika,geckoview-reviewers,ipc-reviewers,application-update-reviewers,media-playback-reviewers,webrtc-reviewers,cookie-reviewers,places-reviewers,profiler-reviewers,win-reviewers,dom-storage-reviewers,permissions-reviewers,firefox-style-system-reviewers,layout-reviewers,dom-worker-reviewers,sandbox-reviewers,gtk-reviewers,webdriver-reviewers,geoprovider-reviewers,crashreporting-reviewers,device-api-reviewers,media-webspeech-reviewers,manuel,mossop,Sasha,saschanaz,bobowen,dshin,jfkthame,chutten,emz,gstoll,jari,bwc,gsvelto,padenot,canova,asuth,emilio,yjuglaret,azebrowski,valentin	2026-10-26 09:33:33 +00:00
storage	Bug 2029718. r=jari	2026-11-06 14:22:28 +00:00
supply-chain	Bug 2088996 - avoid CERTCertificate when finding potential issuers in cert verification r=jschanck,supply-chain-reviewers	2026-11-09 20:36:28 +00:00
taskcluster	Revert "Bug 2091603 - Remove the vendored pip-tools r=firefox-build-system-reviewers,mach-reviewers,sergesanspaille,ahal" for causing failures at role/alert.py	2026-11-13 00:58:40 +00:00
testing	Bug 1288201 -- refactor mozfile.py to use redo r=ahochheiden,mach-reviewers,firefox-build-system-reviewers	2026-11-13 01:05:48 +00:00
third_party	Revert "Bug 2091603 - Remove the vendored pip-tools r=firefox-build-system-reviewers,mach-reviewers,sergesanspaille,ahal" for causing failures at role/alert.py	2026-11-13 00:58:40 +00:00
toolkit	Bug 2085640 - Don't let head CSS/JS loads block fetch(), like XHR. r=necko-reviewers,valentin,jesup	2026-11-12 23:28:27 +00:00
tools	Revert "Bug 2091603 - Remove the vendored pip-tools r=firefox-build-system-reviewers,mach-reviewers,sergesanspaille,ahal" for causing failures at role/alert.py	2026-11-13 00:58:40 +00:00
uriloader	Bug 2022645 - Remove the wallet scheme handler in browser_protocol_ask_dialog_permission.js cleanup, r=firefox-desktop-core-reviewers ,mossop.	2026-11-12 19:47:13 +00:00
widget	Bug 2083100 - Skip view transitions when the parent process loses its compositor or a tab moves to another window. r=webidl,emilio	2026-11-12 21:03:50 +00:00
xpcom	Bug 2065297 - Make DeadlockDetector graph traversal iterative and skip visited entries. r=xpcom-reviewers,jstutte	2026-11-12 15:45:02 +00:00
xpfe/appshell	Bug 2090941 - Remove nsIWebBrowser. r=dom-core-reviewers,smaug	2026-11-10 09:10:13 +00:00
.arcconfig
.babel-eslint.rc.js
.clang-format
.clang-format-ignore	Bug 2076810 - Exclude clang-plugin alpha tests from clang-format. r=sergesanspaille	2026-10-12 09:29:30 +00:00
.cron.yml	Bug 2081896 - Run the HSTS and HPKP updates in the weekly periodic-file-update task on ESR branches. r=releng-reviewers,jcristau	2026-10-15 16:38:13 +00:00
.editorconfig
.git-blame-ignore-revs	Bug `2080403` - Ignore the reindent of the four renamed tabbrowser window modules in blame and annotate. r=firefox-desktop-core-reviewers ,mak DONTBUILD	2026-11-10 13:10:23 +00:00
.gitattributes
.gitignore	Bug 1975505 - Part 3 - Move the `tools/ts` node packages to the top level `package.json` r=Standard8	2026-11-09 06:37:02 +00:00
.hg-annotate-ignore-revs	Bug `2080403` - Ignore the reindent of the four renamed tabbrowser window modules in blame and annotate. r=firefox-desktop-core-reviewers ,mak DONTBUILD	2026-11-10 13:10:23 +00:00
.hgignore	Bug 1975505 - Part 3 - Move the `tools/ts` node packages to the top level `package.json` r=Standard8	2026-11-09 06:37:02 +00:00
.hgtags
.lando.ini	lando: remove old lando config (Bug 2067620) r=conduit-reviewers,sheehan DONTBUILD	2026-09-23 04:16:37 +00:00
.lldbinit
.mailmap
.mcp.json
.prettierignore	Bug 2073063 - Add a browsertime test that replays recorded news-site request timelines against a local DoH server r=perftest-reviewers,necko-reviewers,frontend-codestyle-reviewers,Standard8,valentin,kshampur	2026-10-16 18:58:52 +00:00
.prettierignore-css
.prettierignore-non-css
.prettierrc.js
.stylelintignore
.stylelintrc.js	Bug 2083203 - remove the remnants of the unmaintained FxR, r=firefox-desktop-core-reviewers ,gfx-reviewers,mossop,nical	2026-11-03 14:26:46 +00:00
.taskcluster.yml	Bug 2048352 - Create push decision tasks for the code review bot's firefox-crb repository, r=ahal,taskgraph-reviewers,releng-reviewers	2026-11-09 09:52:13 +00:00
.trackerignore
.watchmanconfig
.yamllint	Bug 2065363 - Integrate `pnpm audit` into `mozlint` r=linter-reviewers,ahal	2026-09-10 03:12:35 +00:00
.ycm_extra_conf.py
AGENTS.md	Bug 2085768 - Remove the rule forbidding emoji in code r=ai4dev-reviewers,marco	2026-11-03 12:22:31 +00:00
AUTHORS
build.gradle	Bug 1785929 - Move the Android javac lint options into the conventions plugin. r=android-reviewers,geckoview-reviewers,android-build-system-reviewers,ahochheiden,jonalmeida	2026-11-06 18:17:08 +00:00
Cargo.lock	Bug 2052227 - Part 1: Implement speculation rule CSS selector predicate parsing. r=jjaschke	2026-11-12 14:42:22 +00:00
Cargo.toml	Bug 2087402 - Unfork the utf8_iter and utf16_iter crates. r=supply-chain-reviewers,m_kato	2026-11-02 08:46:09 +00:00
CLAUDE.md
client.mk
CLOBBER	Bug 2086269 - Vendor libwebrtc from c8bca1867e - moz.build file updates	2026-11-12 00:57:15 +00:00
CODE_OF_CONDUCT.md
configure
configure.py
eslint-file-globals.config.mjs	Bug 2059780 - Move legacy Heartbeat functionality from Normandy to Nimbus. r=nimbus-reviewers,desktop-theme-reviewers,frontend-codestyle-reviewers,beth,akulyk	2026-11-09 21:23:54 +00:00
eslint-ignores.config.mjs	Bug 2059780 - Move legacy Heartbeat functionality from Normandy to Nimbus. r=nimbus-reviewers,desktop-theme-reviewers,frontend-codestyle-reviewers,beth,akulyk	2026-11-09 21:23:54 +00:00
eslint-rollouts.config.mjs	Bug 2059780 - Move legacy Heartbeat functionality from Normandy to Nimbus. r=nimbus-reviewers,desktop-theme-reviewers,frontend-codestyle-reviewers,beth,akulyk	2026-11-09 21:23:54 +00:00
eslint-subdirs.config.mjs	Bug 2069131 - Rename remaining browser/base/content/test browser-chrome directories to match eslint-test-paths conventions r=frontend-codestyle-reviewers,webcompat-reviewers,fxview-reviewers,places-reviewers,android-reviewers,urlbar-reviewers,layout-reviewers,device-api-reviewers,timhuang,mossop,dshin,gstoll,jteow,twisniewski,daisuke,nsharpley	2026-09-18 11:27:02 +00:00
eslint-test-paths.config.mjs	Bug 806757 - Move browser/components/safebrowsing/content/test/ to browser/base/content/test/browser-safebrowsing/. r=frontend-codestyle-reviewers,Standard8,mossop	2026-09-24 14:24:30 +00:00
eslint.config.mjs	Bug 2059041 - Migrate Code Connect templates to the Template API r=mkennedy,frontend-codestyle-reviewers	2026-11-04 17:18:54 +00:00
GNUmakefile
gradle.properties	Bug 2086700 - Raise the Gradle daemon's JIT code cache to 512 MB r=RyanVM,android-build-system-reviewers	2026-10-28 20:58:13 +00:00
gradlew
gradlew.bat	Bug 2075385 - Update Gradle to version 9.8.0. r=android-reviewers,adhingra	2026-09-25 23:35:07 +00:00
LICENSE
mach	Bug 2070304 - Document installing Python with uv in the macOS and Linux build docs r=firefox-build-system-reviewers,sylvestre	2026-09-25 23:34:39 +00:00
mach.cmd
mach.ps1
Makefile.in	Bug 2038789 - Move the source changeset lookup from root `Makefile.in` to `BuildDriver` r=firefox-build-system-reviewers,sylvestre	2026-11-09 17:07:22 +00:00
mots.yaml	Bug 2090818. Update web painting section in mots.yaml. r=layout-reviewers,shtrom,jwatt	2026-11-09 10:00:00 +00:00
moz.build	Bug 2038789 - Move the source changeset lookup from root `Makefile.in` to `BuildDriver` r=firefox-build-system-reviewers,sylvestre	2026-11-09 17:07:22 +00:00
moz.configure	Revert "Bug 2084061: Fix existing string-formatting warnings in `moz.configure`. r=firefox-build-system-reviewers,sergesanspaille" for causing mozbuild failures	2026-10-26 16:34:52 +00:00
mozilla-config.h.in	Bug 2085980 - Silence the `GetExceptionCode` redefinition warning in `mozilla-config.h` for MinGW builds r=RyanVM	2026-11-10 20:44:46 +00:00
package-lock.json	Bug 1975505 - Part 3 - Move the `tools/ts` node packages to the top level `package.json` r=Standard8	2026-11-09 06:37:02 +00:00
package.json	Bug 1975505 - Part 3 - Move the `tools/ts` node packages to the top level `package.json` r=Standard8	2026-11-09 06:37:02 +00:00
pyproject.toml	Bug 2068768 - Part 15 - Remove the legacy JarMaker implementation r=firefox-build-system-reviewers,extension-reviewers,layout-reviewers,rpl,sergesanspaille	2026-11-02 23:12:35 +00:00
README.md
review-context.toml	Bug 2086110 - Load the dom/media review checklists for patches that change dom/media code. r=padenot	2026-11-06 21:23:44 +00:00
SECURITY.md
settings.gradle	Bug 2071822 - Add gradle plugin to generate androidTest keep rules	2026-10-19 12:40:47 +00:00
srcdir-resolver.js
stylelint-rollouts.config.js	Bug 2076485 - Update customize mode theme CSS so it passes use-design-tokens r=desktop-theme-reviewers,tgiles	2026-11-12 19:49:29 +00:00
substitute-local-geckoview.gradle
test.mozbuild

README.md

Firefox is a fast, reliable and private web browser from the non-profit Mozilla organization.

Contributing

To learn how to contribute to Firefox read the Firefox Contributors' Quick Reference document.

We use bugzilla.mozilla.org as our issue tracker, please file bugs there.

Resources

Firefox Source Docs is our primary documentation repository
Nightly development builds can be downloaded from Firefox Nightly page

If you have a question about developing Firefox, and can't find the solution on Firefox Source Docs, you can try asking your question on Matrix at chat.mozilla.org in the Introduction channel.