Name Description Size Coverage
.eslintrc.mjs 431 -
about 89 %
aboutlogins 93 %
aboutwelcome 82 %
AccountsGlue.sys.mjs Manages Mozilla Account and Sync related functionality needed at startup. It mainly handles various account-related events and notifications. This module was sliced off of BrowserGlue and designed to centralize account-related events/notifications to prevent crowding BrowserGlue 16205 70 %
aiwindow 89 %
asrouter 91 %
attribution -
backup 92 %
BrowserComponents.manifest 9219 -
BrowserContentHandler.sys.mjs Determines whether a home page override is needed. @param {boolean} [updateMilestones=true] True if we should update the milestone prefs after comparing those prefs with the current platform version and build ID. If updateMilestones is false, then this function has no side-effects. @returns {number} One of the following constants: OVERRIDE_NEW_PROFILE if this is the first run with a new profile. OVERRIDE_NEW_MSTONE if this is the first run with a build with a different Gecko milestone (i.e. right after an upgrade). OVERRIDE_NEW_BUILD_ID if this is the first run with a new build ID of the same Gecko milestone (i.e. after a nightly upgrade). OVERRIDE_NONE otherwise. 57426 68 %
BrowserGlue.sys.mjs 59445 78 %
build -
components.conf 3055 -
contentanalysis -
contextualidentity -
controlcenter -
customizableui 86 %
customkeys 96 %
DefaultBrowserCheck.sys.mjs Don't break if Telemetry is acting up. 7527 -
DesktopActorRegistry.sys.mjs Fission-compatible JSProcess implementations. Each actor options object takes the form of a ProcessActorOptions dictionary. Detailed documentation of these options is in dom/docs/ipc/jsactors.rst, available at https://firefox-source-docs.mozilla.org/dom/ipc/jsactors.html 23546 -
distribution.sys.mjs 20274 82 %
downloads 88 %
enterprisepolicies 87 %
extensions 95 %
firefoxview 91 %
genai 89 %
installerprefs 94 %
ipprotection 89 %
messagepreview 78 %
metrics.yaml 37268 -
migration 79 %
moz.build 3102 -
mozcachedohttp -
multilineeditor 80 %
newtab 86 %
nsIBrowserHandler.idl Extract the width and height specified on the command line, if present. @return A feature string with a prepended comma, e.g. ",width=500,height=400" 799 -
originattributes -
pagedata 96 %
permissions -
places 82 %
preferences 90 %
privatebrowsing 87 %
ProfileDataUpgrader.sys.mjs This method transforms data in the profile directory so that it can be used in the current version of Firefox. It is organized similar to typical database version upgrades: we are invoked with the version of the profile data on disk (`existingDataVersion`) and the version we expect/need (`newVersion`), and execute any necessary migrations. In practice, most of the migrations move user choices from one preference to another, or ensure that other mechanical file moves (e.g. of document URLs like browser.xhtml). If you're adding a new migration, you will need to increment APP_DATA_VERSION in BrowserGlue.sys.mjs' _migrateUI. That version is not in this module so that we can avoid loading this module entirely in common cases (Firefox startups where a profile is not upgraded). Note that this is invoked very early on startup and should try to avoid doing very expensive things immediately unless absolutely necessary. Some of the migrations will therefore set a pref or otherwise flag that their component needs to do more work later, perhaps during idle tasks or similar, to avoid front-loading the component initialization into this early part of startup. Of course, some of these migrations (e.g. to ensure that browser windows remember their sizes if the URL to browser.xhtml has changed) _need_ to run very early, and that is OK. @param {integer} existingDataVersion The version of the data in the profile. @param {integer} newVersion The version that the application expects/needs. 37423 -
profiles 86 %
prompts 91 %
protections 96 %
protocolhandler 76 %
qrcode -
reportbrokensite -
resistfingerprinting -
safebrowsing -
screenshots 93 %
search 63 %
security 82 %
sessionstore 88 %
shell 32 %
sidebar 93 %
StartupRecorder.sys.mjs The StartupRecorder component observes notifications at various stages of startup and records the set of JS modules that were already loaded at each of these points. The records are meant to be used by startup tests in browser/base/content/test/performance This component only exists in nightly and debug builds, it doesn't ship in our release builds. 7752 87 %
StartupTelemetry.sys.mjs Used to collect various bits of telemetry during browser startup. 18211 -
storybook -
syncedtabs 87 %
tabbrowser 92 %
tabnotes 93 %
tabunloader 64 %
taskbartabs 96 %
tests -
textrecognition -
topsites 86 %
touchbar -
translations 90 %
uitour -
urlbar 67 %
webrtc 94 %