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+#filter dumbComments emptyLines substitution
+
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifdef XP_UNIX
+#ifndef XP_MACOSX
+#define UNIX_BUT_NOT_MAC
+#endif
+#endif
+
+pref("general.skins.selectedSkin", "classic/1.0");
+
+#ifdef XP_MACOSX
+pref("mail.biff.animate_dock_icon", false);
+#endif
+
+pref("mail.rights.version", 0);
+
+// Don't show the about:rights notification in debug or non-official builds.
+#ifdef DEBUG
+pref("mail.rights.override", true);
+#endif
+#ifndef MOZILLA_OFFICIAL
+pref("mail.rights.override", true);
+#endif
+
+// At startup, should we check to see if the installation
+// date is older than some threshold
+pref("app.update.checkInstallTime", true);
+
+// The number of days a binary is permitted to be old without checking is defined in
+// thunderbird-branding.js (app.update.checkInstallTime.days)
+
+// The minimum delay in seconds for the timer to fire between the notification
+// of each consumer of the timer manager.
+// minimum=30 seconds, default=120 seconds, and maximum=300 seconds
+pref("app.update.timerMinimumDelay", 120);
+
+// The minimum delay in milliseconds for the first firing after startup of the timer
+// to notify consumers of the timer manager.
+// minimum=10 seconds, default=30 seconds, and maximum=120 seconds
+pref("app.update.timerFirstInterval", 30000);
+
+// App-specific update preferences
+
+// The interval to check for updates (app.update.interval) is defined in
+// the branding files.
+
+// Enables some extra Application Update Logging (can reduce performance)
+pref("app.update.log", false);
+// Causes Application Update Logging to be sent to a file in the profile
+// directory. This preference is automatically disabled on application start to
+// prevent it from being left on accidentally. Turning this pref on enables
+// logging, even if app.update.log is false.
+pref("app.update.log.file", false);
+
+// The number of general background check failures to allow before notifying the
+// user of the failure. User initiated update checks always notify the user of
+// the failure.
+pref("app.update.backgroundMaxErrors", 10);
+
+// Ids of the links to the "What's new" update documentation
+pref("app.update.link.updateAvailableWhatsNew", "update-available-whats-new");
+pref("app.update.link.updateManualWhatsNew", "update-manual-whats-new");
+
+// How many times we should let downloads fail before prompting the user to
+// download a fresh installer.
+pref("app.update.download.promptMaxAttempts", 2);
+
+// How many times we should let an elevation prompt fail before prompting the user to
+// download a fresh installer.
+pref("app.update.elevation.promptMaxAttempts", 2);
+
+#ifdef NIGHTLY_BUILD
+ // Whether to delay popup notifications when an update is available and
+ // suppress them when an update is installed and waiting for user to restart.
+ // If set to true, these notifications will immediately be shown as banners in
+ // the app menu and as badges on the app menu button. Update available
+ // notifications will not create popup prompts until a week has passed without
+ // the user installing the update. Update restart notifications will not
+ // create popup prompts at all. This doesn't affect update notifications
+ // triggered by errors/failures or manual install prompts.
+ pref("app.update.suppressPrompts", false);
+#endif
+
+// If set to true, a message will be displayed in the hamburger menu while
+// an update is being downloaded.
+pref("app.update.notifyDuringDownload", false);
+
+// If set to true, the Update Service will automatically download updates when
+// user can apply updates. This pref is no longer used on Windows, except as the
+// default value to migrate to the new location that this data is now stored
+// (which is in a file in the update directory). Because of this, this pref
+// should no longer be used directly. Instead, getAppUpdateAutoEnabled and
+// getAppUpdateAutoEnabled from UpdateUtils.jsm should be used.
+#ifndef XP_WIN
+ pref("app.update.auto", true);
+#endif
+
+// If set to true, the Update Service will apply updates in the background
+// when it finishes downloading them.
+pref("app.update.staging.enabled", true);
+
+// Update service URL:
+// app.update.url was removed in Bug 1630041
+// app.update.url.manual is in branding section
+// app.update.url.details is in branding section
+// app.update.promptWaitTime is in branding section
+
+// Whether or not to attempt using the service for updates.
+#ifdef MOZ_MAINTENANCE_SERVICE
+pref("app.update.service.enabled", true);
+#endif
+
+#ifdef XP_WIN
+// This pref prevents BITS from being used by Thunderbird to download updates.
+pref("app.update.BITS.enabled", false);
+#endif
+
+// Release notes URL
+pref("app.releaseNotesURL", "https://live.thunderbird.net/%APP%/releasenotes?locale=%LOCALE%&version=%VERSION%&channel=%CHANNEL%&os=%OS%&buildid=%APPBUILDID%");
+
+#ifdef XP_MACOSX
+ // If set to true, Thunderbird will automatically restart if it is left
+ // running with no windows open.
+ pref("app.update.noWindowAutoRestart.enabled", true);
+ // How long to wait after all windows are closed before restarting,
+ // in milliseconds. 5 min = 300000 ms.
+ pref("app.update.noWindowAutoRestart.delayMs", 300000);
+#endif
+
+// URL for "Learn More" for DataCollection
+pref("toolkit.datacollection.infoURL",
+ "https://www.mozilla.org/thunderbird/legal/privacy/#telemetry");
+
+// URL for "Learn More" for Crash Reporter.
+pref("toolkit.crashreporter.infoURL",
+ "https://www.mozilla.org/thunderbird/legal/privacy/#crash-reporter");
+
+pref("datareporting.healthreport.uploadEnabled", true); // Required to enable telemetry pings.
+pref("datareporting.healthreport.infoURL", "https://www.mozilla.org/thunderbird/legal/privacy/#health-report");
+
+#ifdef MOZ_DATA_REPORTING
+pref("datareporting.policy.dataSubmissionEnabled", true);
+pref("datareporting.policy.dataSubmissionPolicyAcceptedVersion", 0);
+pref("datareporting.policy.dataSubmissionPolicyBypassNotification", false);
+pref("datareporting.policy.currentPolicyVersion", 2);
+pref("datareporting.policy.firstRunURL", "https://www.mozilla.org/thunderbird/legal/privacy/");
+#endif
+
+// Base URL for web-based support pages.
+pref("app.support.baseURL", "https://support.thunderbird.net/%APP%/%VERSION%/%OS%/%LOCALE%/");
+
+// Base url for web-based feedback pages.
+pref("app.feedback.baseURL", "https://connect.mozilla.org/");
+
+// Allows using Thundebird without a configured email account, blocking the
+// account setup prompt at startup.
+pref("app.use_without_mail_account", false);
+
+// Show error messages in error console.
+pref("javascript.options.showInConsole", true);
+
+#ifdef NIGHTLY_BUILD
+pref("signon.management.page.os-auth.enabled", true);
+#else
+pref("signon.management.page.os-auth.enabled", false);
+#endif
+
+// Controls enabling of the extension system logging (can reduce performance)
+pref("extensions.logging.enabled", false);
+pref("extensions.overlayloader.loglevel", "warn");
+
+pref("extensions.abuseReport.enabled", false);
+
+// Strict compatibility makes add-ons incompatible by default.
+#ifndef RELEASE_OR_BETA
+pref("extensions.strictCompatibility", false);
+#else
+pref("extensions.strictCompatibility", true);
+#endif
+
+pref("extensions.update.autoUpdateDefault", true);
+
+pref("extensions.systemAddon.update.enabled", true); // See bug 1462160.
+
+// Disable add-ons installed into the shared user and shared system areas by
+// default. This does not include the application directory. See the SCOPE
+// constants in AddonManager.jsm for values to use here
+pref("extensions.autoDisableScopes", 15);
+
+// Enable add-ons installed and owned by the application, like the default theme.
+pref("extensions.startupScanScopes", 4);
+
+// Gecko Profiler
+pref("extensions.geckoProfiler.acceptedExtensionIds", "geckoprofiler@mozilla.com,quantum-foxfooding@mozilla.com,raptor@mozilla.org");
+
+// Allow "legacy" XUL/XPCOM extensions.
+pref("extensions.legacy.enabled", true);
+
+// Preferences for AMO integration
+pref("extensions.getAddons.cache.enabled", true);
+pref("extensions.getAddons.maxResults", 15);
+pref("extensions.getAddons.get.url", "https://services.addons.thunderbird.net/api/v3/addons/search/?guid=%IDS%&lang=%LOCALE%");
+pref("extensions.getAddons.compatOverides.url", "https://services.addons.thunderbird.net/api/v3/addons/compat-override/?guid=%IDS%&lang=%LOCALE%");
+pref("extensions.getAddons.link.url", "https://addons.thunderbird.net/%LOCALE%/%APP%/");
+pref("browser.dictionaries.download.url", "https://addons.thunderbird.net/%LOCALE%/%APP%/language-tools/");
+pref("extensions.getAddons.recommended.url", "https://services.addons.thunderbird.net/%LOCALE%/%APP%/api/%API_VERSION%/list/recommended/all/%MAX_RESULTS%/%OS%/%VERSION%?src=thunderbird");
+pref("extensions.getAddons.search.browseURL", "https://addons.thunderbird.net/%LOCALE%/%APP%/search/?q=%TERMS%&appver=%VERSION%&platform=%OS%");
+pref("extensions.getAddons.search.url", "https://services.addons.thunderbird.net/%LOCALE%/%APP%/api/%API_VERSION%/search/%TERMS%/all/%MAX_RESULTS%/%OS%/%VERSION%/%COMPATIBILITY_MODE%?src=thunderbird");
+pref("extensions.webservice.discoverURL", "https://services.addons.thunderbird.net/%LOCALE%/%APP%/discovery/pane/%VERSION%/%OS%");
+pref("extensions.getAddons.langpacks.url", "https://services.addons.thunderbird.net/api/v3/addons/language-tools/?app=thunderbird&type=language&appversion=%VERSION%");
+pref("extensions.getAddons.discovery.api_url", "https://services.addons.thunderbird.net/api/v4/discovery/?lang=%LOCALE%&edition=%DISTRIBUTION%");
+
+// Blocklist preferences
+pref("extensions.blocklist.detailsURL", "https://blocked.cdn.mozilla.net/");
+pref("extensions.blocklist.itemURL", "https://blocked.cdn.mozilla.net/%blockID%.html");
+
+// Remote settings preferences
+pref("services.settings.server", "https://thunderbird-settings.thunderbird.net/v1");
+pref("services.settings.default_bucket", "thunderbird");
+pref("security.content.signature.root_hash", "[CONTENT SIGNING DISABLED - see bug 1612380]");
+
+// Show new install UI with permission lists
+pref("extensions.webextOptionalPermissionPrompts", true);
+
+// 1 = allow "Man In The Middle" (local proxy, web filter, etc.) for certificate
+// pinning checks.
+pref("security.cert_pinning.enforcement_level", 1);
+
+// Whether to use client certificates stored in OS certificate storage.
+// This does not work for S/MIME. See bug 1726442.
+pref("security.osclientcerts.autoload", false);
+
+// Symmetric (can be overridden by individual extensions) update preferences.
+// e.g.
+// extensions.{GUID}.update.enabled
+// extensions.{GUID}.update.url
+// extensions.{GUID}.update.interval
+// .. etc ..
+//
+pref("extensions.update.enabled", true);
+pref("extensions.update.url", "https://versioncheck.addons.thunderbird.net/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
+
+pref("extensions.update.background.url", "https://versioncheck-bg.addons.thunderbird.net/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=%APP_LOCALE%&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%");
+
+pref("extensions.update.interval", 86400); // Check for updates to Extensions and
+ // Themes every day
+
+pref("extensions.dss.switchPending", false); // Non-dynamic switch pending after next
+
+// Don't show recommendations on the extension and theme list views.
+pref("extensions.htmlaboutaddons.recommendations.enabled", false);
+// Don't allow content scripts on these web sites
+pref("extensions.webextensions.restrictedDomains", "accounts-static.cdn.mozilla.net,accounts.firefox.com,addons.cdn.mozilla.net,addons.mozilla.org,api.accounts.firefox.com,content.cdn.mozilla.net,discovery.addons.mozilla.org,install.mozilla.org,oauth.accounts.firefox.com,profile.accounts.firefox.com,support.mozilla.org,sync.services.mozilla.com,addons.thunderbird.net");
+
+// Define Thunderbird specific add-on related URLs (not used in toolkit code).
+pref("extensions.canonicalAddonServer.url", "https://addons.thunderbird.net");
+pref("extensions.alternativeAddonSearch.url", "https://extension-finder.thunderbird.net");
+
+pref("lightweightThemes.update.enabled", true);
+
+// Use for in-content pages the theme's toolbar color scheme when none is set in the theme.
+pref("browser.theme.unified-color-scheme", true);
+
+// Built-in default permissions.
+pref("permissions.manager.defaultsUrl", "resource://app/defaults/permissions");
+
+#ifdef UNIX_BUT_NOT_MAC
+pref("general.autoScroll", false);
+#else
+pref("general.autoScroll", true);
+#endif
+
+pref("mail.shell.checkDefaultClient", true);
+pref("mail.spellcheck.inline", true);
+
+pref("mail.folder.views.version", 0);
+
+// Force the unit shown for the size of all folders. If empty, the unit
+// is determined automatically for each folder. Allowed values: KB/MB/<empty string>
+pref("mail.folderpane.sizeUnits", "");
+// Summarize messages count and size of subfolders into a collapsed parent?
+// Allowed values: true/false
+pref("mail.folderpane.sumSubfolders", true);
+
+// target folder URI used for the last move or copy
+pref("mail.last_msg_movecopy_target_uri", "");
+// last move or copy operation was a move
+pref("mail.last_msg_movecopy_was_move", true);
+
+//Set the font color for links to something lighter
+pref("browser.anchor_color", "#0B6CDA");
+
+#ifdef XP_MACOSX
+pref("browser.preferences.animateFadeIn", true);
+#else
+pref("browser.preferences.animateFadeIn", false);
+#endif
+pref("browser.preferences.search", true);
+
+// Whether the results panel should be kept open during IME composition.
+// The default value is false because some IME open a picker panel, and we end
+// up with two panels on top of each other. Since for now we can't detect that
+// we leave this choice to the user, hopefully in the future this can be flipped
+// for everyone.
+pref("browser.urlbar.keepPanelOpenDuringImeComposition", false);
+
+pref("accessibility.typeaheadfind", false);
+pref("accessibility.typeaheadfind.timeout", 5000);
+pref("accessibility.typeaheadfind.linksonly", false);
+pref("accessibility.typeaheadfind.flashBar", 1);
+
+pref("mail.close_message_window.on_delete", false);
+
+// Number of lines of To/CC/BCC address headers to show before "more"
+// truncates the list.
+pref("mailnews.headers.show_n_lines_before_more", 1);
+
+// We want to keep track of what items are appropriate in
+// XULStore.json. We use versioning to scrub out the things
+// that have become obsolete.
+// The value will always be set by startup code and must not be changed
+// here. A value of 0 means a new profile.
+pref("mail.ui-rdf.version", 0);
+
+/////////////////////////////////////////////////////////////////
+// Overrides of the core mailnews.js and composer.js prefs
+/////////////////////////////////////////////////////////////////
+pref("mail.showCondensedAddresses", true); // show the friendly display name for people I know
+
+pref("mailnews.attachments.display.start_expanded", false);
+// hidden pref for changing how we present attachments in the message pane
+pref("mail.pane_config.dynamic", 2);
+pref("mailnews.reuse_thread_window2", true);
+pref("editor.singleLine.pasteNewlines", 4); // substitute commas for new lines in single line text boxes
+pref("editor.CR_creates_new_p", true);
+pref("mail.compose.default_to_paragraph", true);
+
+// If true, when pasting a URL, paste the Open Graph / Twitter Card details
+// we can extract from the URL instead.
+pref("mail.compose.add_link_preview", false);
+
+// hidden pref to ensure a certain number of headers in the message pane
+// to avoid the height of the header area from changing when headers are present / not present
+pref("mailnews.headers.minNumHeaders", 0); // 0 means we ignore this pref
+
+// 0=no header, 1="<author> wrote:", 2="On <date> <author> wrote:"
+// 3="<author> wrote On <date>:", 4=user specified
+pref("mailnews.reply_header_type", 2);
+
+pref("mail.operate_on_msgs_in_collapsed_threads", true);
+pref("mail.warn_on_collapsed_thread_operation", true);
+pref("mail.warn_on_shift_delete", true);
+
+// When using commands like "next message" or "previous message", leave
+// at least this percentage of the thread pane visible above / below the
+// selected message.
+pref("mail.threadpane.padding.top_percent", 10);
+pref("mail.threadpane.padding.bottom_percent", 10);
+
+// Use correspondents column instead of from/recipient columns.
+pref("mail.threadpane.use_correspondents", true);
+
+// To allow images to be inserted into a composition with an auth prompt, we
+// need the following two.
+pref("network.auth.subresource-img-cross-origin-http-auth-allow", true);
+pref("network.auth.non-web-content-triggered-resources-http-auth-allow", true);
+
+// 0=as attachment 2=default forward as inline with attachments
+pref("mail.forward_message_mode", 2);
+
+pref("mailnews.send.loglevel", "Warn");
+
+pref("mail.import.in_new_tab", true);
+
+// End core mailnews.js pref overrides
+/////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////
+// Overrides for generic app behavior from the core all.js
+/////////////////////////////////////////////////////////////////
+
+pref("browser.hiddenWindowChromeURL", "chrome://messenger/content/hiddenWindowMac.xhtml");
+
+pref("offline.startup_state", 2);
+// 0 Ask before sending unsent messages when going online
+// 1 Always send unsent messages when going online
+// 2 Never send unsent messages when going online
+pref("offline.send.unsent_messages", 0);
+
+// 0 Ask before synchronizing the offline mail store when going offline
+// 1 Always synchronize the offline store when going offline
+// 2 Never synchronize the offline store when going offline
+pref("offline.download.download_messages", 0);
+
+// All platforms can automatically move the user offline or online based on
+// the network connection.
+pref("offline.autoDetect", true);
+
+// Disable preconnect and friends due to privacy concerns. They are not
+// sent through content policies.
+pref("network.http.speculative-parallel-limit", 0);
+
+// Expose only select protocol handlers. All others should go
+// through the external protocol handler route.
+// If you are changing this list, you may need to also consider changing the
+// list in nsMsgContentPolicy::IsExposedProtocol.
+pref("network.protocol-handler.expose-all", false);
+pref("network.protocol-handler.expose.mailto", true);
+pref("network.protocol-handler.expose.mid", true);
+pref("network.protocol-handler.expose.news", true);
+pref("network.protocol-handler.expose.snews", true);
+pref("network.protocol-handler.expose.nntp", true);
+pref("network.protocol-handler.expose.imap", true);
+pref("network.protocol-handler.expose.pop", true);
+pref("network.protocol-handler.expose.mailbox", true);
+// Although we allow these to be exposed internally, there are various places
+// (e.g. message pane) where we may divert them out to external applications.
+pref("network.protocol-handler.expose.about", true);
+pref("network.protocol-handler.expose.blob", true);
+pref("network.protocol-handler.expose.data", true);
+pref("network.protocol-handler.expose.file", true);
+pref("network.protocol-handler.expose.http", true);
+pref("network.protocol-handler.expose.https", true);
+pref("network.protocol-handler.expose.javascript", true);
+pref("network.protocol-handler.expose.moz-extension", true);
+
+// suppress external-load warning for standard browser schemes
+pref("network.protocol-handler.warn-external.http", false);
+pref("network.protocol-handler.warn-external.https", false);
+pref("network.protocol-handler.warn-external.ftp", false);
+
+// prevent web pages from registering mailnews protocol handlers
+pref("network.protocol-handler.external.cid", false);
+pref("network.protocol-handler.external.mid", false);
+pref("network.protocol-handler.external.mailto", false);
+pref("network.protocol-handler.external.imap", false);
+pref("network.protocol-handler.external.imap-message", false);
+pref("network.protocol-handler.external.pop", false);
+pref("network.protocol-handler.external.pop3", false);
+pref("network.protocol-handler.external.mailbox", false);
+pref("network.protocol-handler.external.mailbox-message", false);
+pref("network.protocol-handler.external.smtp", false);
+pref("network.protocol-handler.external.smtps", false);
+pref("network.protocol-handler.external.nntp", false);
+pref("network.protocol-handler.external.news", false);
+pref("network.protocol-handler.external.news-message", false);
+pref("network.protocol-handler.external.snews", false);
+pref("network.protocol-handler.external.ldap", false);
+pref("network.protocol-handler.external.ldaps", false);
+pref("network.protocol-handler.external.webcal", false);
+pref("network.protocol-handler.external.webcals", false);
+pref("network.protocol-handler.external.moz-cal-handle-itip", false);
+pref("network.protocol-handler.external.smile", false);
+
+pref("network.hosts.smtp_server", "mail");
+pref("network.hosts.pop_server", "mail");
+
+// For testing purposes only: Flipping this pref to true allows
+// to skip the assertion that every about page ships with a CSP.
+pref("dom.security.skip_about_page_has_csp_assert", true);
+
+pref("security.warn_entering_secure", false);
+pref("security.warn_entering_weak", false);
+pref("security.warn_leaving_secure", false);
+pref("security.warn_viewing_mixed", false);
+pref("security.aboutcertificate.enabled", true);
+
+// Don't automatically cleanup intermediate CA certificates that core
+// has on a preloaded list, it causes S/MIME failures. (Bug 1777336)
+pref("security.intermediate_preloading_healer.enabled", false);
+
+// Don't show a prompt for external applications.
+pref("security.external_protocol_requires_permission", false);
+
+// Prompt for the primary password prior to opening application windows,
+// to avoid the race that triggers multiple prompts (see bug 177175).
+pref("security.prompt_for_master_password_on_startup", true);
+
+pref("general.config.obscure_value", 0); // for MCD .cfg files
+
+pref("browser.display.auto_quality_min_font_size", 0);
+
+pref("view_source.syntax_highlight", false);
+
+pref("dom.serviceWorkers.enabled", true);
+
+/////////////////////////////////////////////////////////////////
+// End core all.js pref overrides
+/////////////////////////////////////////////////////////////////
+
+/////////////////////////////////////////////////////////////////
+// Generic browser related prefs.
+/////////////////////////////////////////////////////////////////
+pref("browser.send_pings", false);
+pref("browser.xul.error_pages.expert_bad_cert", false);
+
+// Attachment download manager settings
+pref("browser.download.useDownloadDir", false);
+pref("browser.download.folderList", 0);
+pref("browser.download.manager.showAlertOnComplete", false);
+pref("browser.download.manager.showAlertInterval", 2000);
+pref("browser.download.manager.retention", 1);
+pref("browser.download.manager.showWhenStarting", false);
+pref("browser.download.manager.closeWhenDone", true);
+pref("browser.download.manager.focusWhenStarting", false);
+pref("browser.download.manager.flashCount", 0);
+pref("browser.download.manager.addToRecentDocs", true);
+#ifndef XP_MACOSX
+pref("browser.helperApps.deleteTempFileOnExit", true);
+#endif
+
+// Not used in Thunderbird.
+pref("browser.startup.homepage.abouthome_cache.enabled", true);
+
+pref("spellchecker.dictionary", "");
+// Dictionary download preference
+pref("spellchecker.dictionaries.download.url", "https://addons.thunderbird.net/%LOCALE%/%APP%/dictionaries/");
+
+// profile.force.migration can be used to bypass the migration wizard, forcing migration from a particular
+// mail application without any user intervention. Possible values are:
+// seamonkey (mozilla suite) and outlook.
+pref("profile.force.migration", "");
+
+// prefs to control the mail alert notification
+#ifndef XP_MACOSX
+pref("alerts.totalOpenTime", 10000);
+#endif
+
+// Disable new windows notifications until they are fully supported by Thunderbird (bug 1838139).
+#ifdef XP_WIN
+pref("alerts.useSystemBackend", false);
+#endif
+
+// analyze urls in mail messages for scams
+pref("mail.phishing.detection.enabled", true);
+// If phishing detection is enabled, allow fine grained control
+// of the local, static tests
+pref("mail.phishing.detection.ipaddresses", true);
+pref("mail.phishing.detection.mismatched_hosts", true);
+pref("mail.phishing.detection.disallow_form_actions", true);
+
+pref("browser.safebrowsing.reportPhishURL", "https://%LOCALE%.phish-report.mozilla.com/?hl=%LOCALE%");
+
+// prevent status-bar spoofing even if people are foolish enough to turn on JS
+pref("dom.disable_window_status_change", true);
+
+// If a message is opened using Enter or a double click, what should we do?
+// 0 - open it in a new window
+// 1 - open it in an existing window
+// 2 - open it in a new tab
+pref("mail.openMessageBehavior", 2);
+pref("mail.openMessageBehavior.version", 0);
+// If messages or folders are opened using the context menu or a middle click,
+// should we open them in the foreground or in the background?
+pref("mail.tabs.loadInBackground", true);
+
+// Tabs
+pref("mail.tabs.tabMinWidth", 100);
+pref("mail.tabs.tabMaxWidth", 250);
+pref("mail.tabs.tabClipWidth", 140);
+pref("mail.tabs.autoHide", true);
+pref("mail.tabs.closeWindowWithLastTab", true);
+
+// Allow the tabs to be in the titlebar on supported systems
+pref("mail.tabs.drawInTitlebar", true);
+
+// The breakpad report server to link to in about:crashes
+pref("breakpad.reportURL", "https://crash-stats.mozilla.com/report/index/");
+
+// OS Integrated Search and Indexing
+#ifdef XP_WIN
+pref("mail.winsearch.enable", false);
+pref("mail.winsearch.firstRunDone", false);
+#else
+#ifdef XP_MACOSX
+pref("mail.spotlight.enable", false);
+pref("mail.spotlight.firstRunDone", false);
+#endif
+#endif
+
+// -- Windows Search/Spotlight logging options
+#ifdef XP_WIN
+pref("mail.winsearch.loglevel", "Warn");
+#else
+#ifdef XP_MACOSX
+pref("mail.spotlight.loglevel", "Warn");
+#endif
+#endif
+
+// Whether to use a panel that looks like an OS X sheet for customization
+#ifdef XP_MACOSX
+pref("toolbar.customization.usesheet", true);
+#else
+pref("toolbar.customization.usesheet", false);
+#endif
+
+// Start compositions with (empty) attachment pane showing
+pref("mail.compose.show_attachment_pane", false);
+// Check for missing attachments?
+pref("mail.compose.attachment_reminder", true);
+// Words that should trigger a missing attachments warning.
+pref("mail.compose.attachment_reminder_keywords", "chrome://messenger/locale/messengercompose/composeMsgs.properties");
+// When no action is taken on the inline missing attachment notification,
+// show an alert on send?
+pref("mail.compose.attachment_reminder_aggressive", true);
+
+// True if the user should be notified when attaching big files
+pref("mail.compose.big_attachments.notify", true);
+// Size (in kB) to automatically prompt for conversion of attachments to
+// cloud links
+pref("mail.compose.big_attachments.threshold_kb", 5120);
+// True if the user should be notified that links will be inserted into
+// their message when the upload is completed
+pref("mail.compose.big_attachments.insert_notification", true);
+
+// While false, display information about editing sending identity in compose.
+pref("mail.compose.warned_about_customize_from", false);
+
+pref("browser.formfill.enable", true);
+
+// Disable autoplay as we don't handle audio elements in emails very well.
+// See bug 515082.
+pref("media.autoplay.enabled", false);
+
+// whether to hide the timeline view by default in the faceted search display
+pref("gloda.facetview.hidetimeline", true);
+
+// Behavior of sort-by setting in search results:
+// 0 - default to "relevance", and don't remember user setting when it is changed (== old behavior)
+// 1 - default to "date", but don't remember user setting when it is changed
+// 2 - default to "relevance", but remember user preference when it is changed
+// 3 - default to "date", but remember user preference when it is changed
+pref("gloda.facetview.sortby", 2);
+
+// Enable gloda by default!
+pref("mailnews.database.global.indexer.enabled", true);
+// Limit the number of gloda message results
+pref("mailnews.database.global.search.msg.limit", 1000);
+
+// Serif fonts look dated. Switching those language families to sans-serif
+// where we think it makes sense. Worth investigating for other font families
+// as well, viz bug 520824. See all.js for the rest of the font families
+// preferences.
+pref("font.default", "sans-serif");
+pref("font.default.x-unicode", "sans-serif");
+pref("font.default.x-western", "sans-serif");
+pref("font.default.x-cyrillic", "sans-serif");
+pref("font.default.el", "sans-serif");
+
+#ifdef XP_WIN
+pref("font.name.monospace.x-unicode", "Consolas");
+pref("font.name.sans-serif.x-unicode", "Calibri");
+pref("font.name.serif.x-unicode", "Cambria");
+pref("font.size.monospace.x-unicode", 14);
+pref("font.size.variable.x-unicode", 17);
+
+pref("font.name.monospace.x-western", "Consolas");
+pref("font.name.sans-serif.x-western", "Calibri");
+pref("font.name.serif.x-western", "Cambria");
+pref("font.size.monospace.x-western", 14);
+pref("font.size.variable.x-western", 17);
+
+pref("font.name.monospace.x-cyrillic", "Consolas");
+pref("font.name.sans-serif.x-cyrillic", "Calibri");
+pref("font.name.serif.x-cyrillic", "Cambria");
+pref("font.size.monospace.x-cyrillic", 14);
+pref("font.size.variable.x-cyrillic", 17);
+
+pref("font.name.monospace.el", "Consolas");
+pref("font.name.sans-serif.el", "Calibri");
+pref("font.name.serif.el", "Cambria");
+pref("font.size.monospace.el", 14);
+pref("font.size.variable.el", 17);
+
+pref("mail.font.windows.version", 2);
+#endif
+
+#ifdef XP_MACOSX
+pref("font.name.sans-serif.x-unicode", "Lucida Grande");
+pref("font.name.monospace.x-unicode", "Menlo");
+pref("font.name-list.sans-serif.x-unicode", "Lucida Grande");
+pref("font.name-list.monospace.x-unicode", "Menlo, Monaco");
+pref("font.size.variable.x-unicode", 15);
+pref("font.size.monospace.x-unicode", 12);
+
+pref("font.name.sans-serif.x-western", "Lucida Grande");
+pref("font.name.monospace.x-western", "Menlo");
+pref("font.name-list.sans-serif.x-western", "Lucida Grande");
+pref("font.name-list.monospace.x-western", "Menlo, Monaco");
+pref("font.size.variable.x-western", 15);
+pref("font.size.monospace.x-western", 12);
+
+pref("font.name.sans-serif.x-cyrillic", "Lucida Grande");
+pref("font.name.monospace.x-cyrillic", "Menlo");
+pref("font.name-list.sans-serif.x-cyrillic", "Lucida Grande");
+pref("font.name-list.monospace.x-cyrillic", "Menlo, Monaco");
+pref("font.size.variable.x-cyrillic", 15);
+pref("font.size.monospace.x-cyrillic", 12);
+
+pref("font.name.sans-serif.el", "Lucida Grande");
+pref("font.name.monospace.el", "Menlo");
+pref("font.name-list.sans-serif.el", "Lucida Grande");
+pref("font.name-list.monospace.el", "Menlo, Monaco");
+pref("font.size.variable.el", 15);
+pref("font.size.monospace.el", 12);
+#endif
+
+// Since different versions of Windows need different settings, we'll handle
+// this in MailMigrator.jsm.
+
+// Linux, in other words. Other OSes may wish to override.
+#ifdef UNIX_BUT_NOT_MAC
+// The font.name-list fallback is defined in case font.name isn't
+// present -- e.g. in case a profile that's been used on Windows Vista or above
+// is used on Linux.
+pref("font.name-list.serif.x-unicode", "serif");
+pref("font.name-list.sans-serif.x-unicode", "sans-serif");
+pref("font.name-list.monospace.x-unicode", "monospace");
+
+pref("font.name-list.serif.x-western", "serif");
+pref("font.name-list.sans-serif.x-western", "sans-serif");
+pref("font.name-list.monospace.x-western", "monospace");
+
+pref("font.name-list.serif.x-cyrillic", "serif");
+pref("font.name-list.sans-serif.x-cyrillic", "sans-serif");
+pref("font.name-list.monospace.x-cyrillic", "monospace");
+
+pref("font.name-list.serif.el", "serif");
+pref("font.name-list.sans-serif.el", "sans-serif");
+pref("font.name-list.monospace.el", "monospace");
+#endif
+
+pref("mail.setup.loglevel", "Warn");
+
+// Handle links targeting new windows (from within content tabs)
+// These are the values that Firefox can be set to:
+// 0=default window, 1=current window/tab, 2=new window,
+// 3=new tab in most recent window
+//
+// Thunderbird only supports a value of 3. Other values can be set, but are
+// not implemented or supported.
+pref("browser.link.open_newwindow", 3);
+
+// These are the values that Firefox can be set to:
+// 0: no restrictions - divert everything
+// 1: don't divert window.open at all
+// 2: don't divert window.open with features
+//
+// Thunderbird only supports a value of 0. Other values can be set, but are
+// not implemented or supported.
+pref("browser.link.open_newwindow.restriction", 0);
+
+pref("browser.tabs.loadDivertedInBackground", false);
+
+// Enable multi-process.
+pref("browser.tabs.remote.autostart", true);
+pref("browser.tabs.remote.desktopbehavior", true);
+pref("extensions.webextensions.remote", true);
+
+pref("extensions.webextensions.background-delayed-startup", true);
+
+// Browser icon prefs
+pref("browser.chrome.site_icons", true);
+pref("browser.chrome.favicons", true);
+
+// Enable places by default as we want to store global history for visited links
+// Below we define reasonable defaults as copied from Firefox so that we have
+// something sensible.
+pref("places.history.enabled", true);
+
+// the (maximum) number of the recent visits to sample
+// when calculating frecency
+pref("places.frecency.numVisits", 10);
+
+// buckets (in days) for frecency calculation
+pref("places.frecency.firstBucketCutoff", 4);
+pref("places.frecency.secondBucketCutoff", 14);
+pref("places.frecency.thirdBucketCutoff", 31);
+pref("places.frecency.fourthBucketCutoff", 90);
+
+// weights for buckets for frecency calculations
+pref("places.frecency.firstBucketWeight", 100);
+pref("places.frecency.secondBucketWeight", 70);
+pref("places.frecency.thirdBucketWeight", 50);
+pref("places.frecency.fourthBucketWeight", 30);
+pref("places.frecency.defaultBucketWeight", 10);
+
+// bonus (in percent) for visit transition types for frecency calculations
+pref("places.frecency.embedVisitBonus", 0);
+pref("places.frecency.framedLinkVisitBonus", 0);
+pref("places.frecency.linkVisitBonus", 100);
+pref("places.frecency.typedVisitBonus", 2000);
+pref("places.frecency.bookmarkVisitBonus", 75);
+pref("places.frecency.downloadVisitBonus", 0);
+pref("places.frecency.permRedirectVisitBonus", 0);
+pref("places.frecency.tempRedirectVisitBonus", 0);
+pref("places.frecency.reloadVisitBonus", 0);
+pref("places.frecency.defaultVisitBonus", 0);
+
+// bonus (in percent) for place types for frecency calculations
+pref("places.frecency.unvisitedBookmarkBonus", 140);
+pref("places.frecency.unvisitedTypedBonus", 200);
+
+// Enables alternative frecency calculation for origins.
+pref("places.frecency.origins.alternative.featureGate", false);
+
+// The default Places log level.
+pref("places.loglevel", "Error");
+
+// Windows taskbar support
+#ifdef XP_WIN
+pref("mail.taskbar.lists.enabled", true);
+pref("mail.taskbar.lists.tasks.enabled", true);
+#endif
+
+// Account provisioner.
+pref("mail.provider.providerList", "https://broker.thunderbird.net/provider/list");
+pref("mail.provider.suggestFromName", "https://broker.thunderbird.net/provider/suggest");
+pref("mail.provider.enabled", true);
+
+pref("mail.chat.enabled", true);
+// Whether to show chat notifications or not.
+pref("mail.chat.show_desktop_notifications", true);
+// Decide how much information is to be shown in the notification.
+// 0 == Show all info (sender, chat message message preview),
+// 1 == Show sender's info only (not message preview),
+// 2 == No info (fill dummy values).
+pref("mail.chat.notification_info", 0);
+pref("mail.chat.play_sound", true);
+// 0 == default system sound, 1 == user specified wav
+pref("mail.chat.play_sound.type", 0);
+// if sound is user specified, this needs to be a file url
+pref("mail.chat.play_sound.url", "");
+// Enable/Disable support for OTR chat encryption.
+pref("chat.otr.enable", true);
+// Default values for chat account prefs.
+pref("chat.otr.default.requireEncryption", false);
+pref("chat.otr.default.verifyNudge", true);
+pref("chat.otr.default.allowMsgLog", true);
+
+// BigFiles
+pref("mail.cloud_files.enabled", true);
+pref("mail.cloud_files.learn_more_url", "https://support.thunderbird.net/kb/filelink-large-attachments");
+
+// Ignore threads
+pref("mail.ignore_thread.learn_more_url", "https://support.thunderbird.net/kb/ignore-threads");
+
+// Density control for the entire Thunderbird UI.
+// The possible values are 0=compact, 1=normal, 2=touch.
+pref("mail.uidensity", 1);
+
+// Font size control for the entire Thunderbird UI. The value represents the
+// pixel value which will be applied as inline style to the root element of the
+// page (e.g.: 14 = font-size: 14px)
+pref("mail.uifontsize", 0);
+
+// Sanitize dialog window
+pref("privacy.cpd.history", true);
+pref("privacy.cpd.cookies", true);
+pref("privacy.cpd.cache", true);
+
+// What default should we use for the time span in the sanitizer:
+// 0 - Clear everything
+// 1 - Last Hour
+// 2 - Last 2 Hours
+// 3 - Last 4 Hours
+// 4 - Today
+pref("privacy.sanitize.timeSpan", 1);
+
+// Enable Contextual Identity Containers
+pref("privacy.userContext.enabled", false);
+
+// Set to true to add toggles to the WebRTC indicator for globally
+// muting the camera and microphone.
+pref("privacy.webrtc.globalMuteToggles", false);
+
+// If set to true, Thunderbird will collapse the main menu for new profiles
+// (or, more precisely, profiles that start with no accounts created).
+pref("mail.main_menu.collapse_by_default", true);
+
+// If set to true, when saving a message to a file, use underscore
+// instead of space in the file name.
+pref("mail.save_msg_filename_underscores_for_space", false);
+
+#ifdef NIGHTLY_BUILD
+// See bug 1572568 for details. Disallow eval() with system principal.
+pref("security.allow_eval_with_system_principal", false);
+#endif
+
+// Enable FIDO U2F
+pref("security.webauth.u2f", true);
+
+// Use OS date and time settings by default.
+pref("intl.regional_prefs.use_os_locales", true);
+
+// Multi-lingual preferences:
+// *.enabled - Are langpacks available for the build of Firefox?
+// *.downloadEnabled - Langpacks are allowed to be downloaded from ATN. ATN only serves
+// langpacks for release and beta. There is no release-only define, so we also enable
+// it for beta.
+// *.liveReload - Switching a langpack will change the language without a restart.
+// *.liveReloadBidirectional - Allows switching when moving between LTR and RTL
+// languages without a full restart.
+pref("intl.multilingual.enabled", true);
+#if defined(RELEASE_OR_BETA)
+pref("intl.multilingual.downloadEnabled", true);
+pref("intl.multilingual.liveReload", false);
+pref("intl.multilingual.liveReloadBidirectional", false);
+#else
+pref("intl.multilingual.downloadEnabled", false);
+pref("intl.multilingual.liveReload", false);
+pref("intl.multilingual.liveReloadBidirectional", false);
+#endif
+
+// if true, use full page zoom instead of text zoom
+pref("browser.zoom.full", true);
+
+pref("toolkit.osKeyStore.loglevel", "Warn");
+
+// Developer Tools related preferences
+pref("devtools.chrome.enabled", true);
+pref("devtools.debugger.remote-enabled", true);
+pref("devtools.selfxss.count", 5);
+// Enable extensionStorage storage actor by default
+pref("devtools.storage.extensionStorage.enabled", true);
+
+// Toolbox preferences
+pref("devtools.toolbox.footer.height", 250);
+pref("devtools.toolbox.sidebar.width", 500);
+pref("devtools.toolbox.host", "bottom");
+pref("devtools.toolbox.previousHost", "right");
+pref("devtools.toolbox.selectedTool", "inspector");
+pref("devtools.toolbox.sideEnabled", true);
+pref("devtools.toolbox.zoomValue", "1");
+pref("devtools.toolbox.splitconsoleEnabled", false);
+pref("devtools.toolbox.splitconsoleHeight", 100);
+pref("devtools.toolbox.tabsOrder", "");
+pref("devtools.netmonitor.features.newEditAndResend", false);
+
+// The fission pref for enabling the "Multiprocess Browser Toolbox", which will
+// make it possible to debug anything in Firefox (See Bug 1570639 for more
+// information).
+#if defined(NIGHTLY_BUILD)
+pref("devtools.browsertoolbox.fission", true);
+#else
+pref("devtools.browsertoolbox.fission", false);
+#endif
+
+// When the Multiprocess Browser Toolbox is enabled, you can configure the scope of it:
+// - "everything" will enable debugging absolutely everything in the browser
+// All processes, all documents, all workers, all add-ons.
+// - "parent-process" will restrict debugging to the parent process
+// All privileged javascript, documents and workers running in the parent process.
+pref("devtools.browsertoolbox.scope", "everything");
+
+// Toolbox Button preferences
+pref("devtools.command-button-pick.enabled", true);
+pref("devtools.command-button-frames.enabled", true);
+pref("devtools.command-button-splitconsole.enabled", true);
+pref("devtools.command-button-responsive.enabled", true);
+pref("devtools.command-button-screenshot.enabled", false);
+pref("devtools.command-button-rulers.enabled", false);
+pref("devtools.command-button-measure.enabled", false);
+pref("devtools.command-button-noautohide.enabled", false);
+pref("devtools.command-button-errorcount.enabled", true);
+#ifndef MOZILLA_OFFICIAL
+ pref("devtools.command-button-experimental-prefs.enabled", true);
+#endif
+
+// Inspector preferences
+// Enable the Inspector
+pref("devtools.inspector.enabled", true);
+// What was the last active sidebar in the inspector
+pref("devtools.inspector.selectedSidebar", "layoutview");
+pref("devtools.inspector.activeSidebar", "layoutview");
+pref("devtools.inspector.remote", false);
+
+// Enable the 3 pane mode in the inspector
+pref("devtools.inspector.three-pane-enabled", true);
+// Enable the 3 pane mode in the chrome inspector
+pref("devtools.inspector.chrome.three-pane-enabled", false);
+// Collapse pseudo-elements by default in the rule-view
+pref("devtools.inspector.show_pseudo_elements", false);
+// The default size for image preview tooltips in the rule-view/computed-view/markup-view
+pref("devtools.inspector.imagePreviewTooltipSize", 300);
+// Enable user agent style inspection in rule-view
+pref("devtools.inspector.showUserAgentStyles", false);
+// Show native anonymous content and user agent shadow roots
+pref("devtools.inspector.showAllAnonymousContent", false);
+// Enable the inline CSS compatibility warning in inspector rule view
+pref("devtools.inspector.ruleview.inline-compatibility-warning.enabled", false);
+// Enable the compatibility tool in the inspector.
+pref("devtools.inspector.compatibility.enabled", true);
+// Enable color scheme simulation in the inspector.
+pref("devtools.inspector.color-scheme-simulation.enabled", true);
+
+// Grid highlighter preferences
+pref("devtools.gridinspector.gridOutlineMaxColumns", 50);
+pref("devtools.gridinspector.gridOutlineMaxRows", 50);
+pref("devtools.gridinspector.showGridAreas", false);
+pref("devtools.gridinspector.showGridLineNumbers", false);
+pref("devtools.gridinspector.showInfiniteLines", false);
+// Max number of grid highlighters that can be displayed
+pref("devtools.gridinspector.maxHighlighters", 3);
+
+// Whether or not simplified highlighters should be used when
+// prefers-reduced-motion is enabled.
+pref("devtools.inspector.simple-highlighters-reduced-motion", false);
+
+// Whether or not the box model panel is opened in the layout view
+pref("devtools.layout.boxmodel.opened", true);
+// Whether or not the flexbox panel is opened in the layout view
+pref("devtools.layout.flexbox.opened", true);
+// Whether or not the flexbox container panel is opened in the layout view
+pref("devtools.layout.flex-container.opened", true);
+// Whether or not the flexbox item panel is opened in the layout view
+pref("devtools.layout.flex-item.opened", true);
+// Whether or not the grid inspector panel is opened in the layout view
+pref("devtools.layout.grid.opened", true);
+
+// Enable hovering Box Model values and jumping to their source CSS rule in the
+// rule-view.
+#if defined(NIGHTLY_BUILD)
+ pref("devtools.layout.boxmodel.highlightProperty", true);
+#else
+ pref("devtools.layout.boxmodel.highlightProperty", false);
+#endif
+
+// By how many times eyedropper will magnify pixels
+pref("devtools.eyedropper.zoom", 6);
+
+// Enable to collapse attributes that are too long.
+pref("devtools.markup.collapseAttributes", true);
+// Length to collapse attributes
+pref("devtools.markup.collapseAttributeLength", 120);
+// Whether to auto-beautify the HTML on copy.
+pref("devtools.markup.beautifyOnCopy", false);
+// Whether or not the DOM mutation breakpoints context menu are enabled in the
+// markup view.
+pref("devtools.markup.mutationBreakpoints.enabled", true);
+
+// DevTools default color unit
+pref("devtools.defaultColorUnit", "authored");
+
+// Enable the Memory tools
+pref("devtools.memory.enabled", true);
+
+pref("devtools.memory.custom-census-displays", "{}");
+pref("devtools.memory.custom-label-displays", "{}");
+pref("devtools.memory.custom-tree-map-displays", "{}");
+
+pref("devtools.memory.max-individuals", 1000);
+pref("devtools.memory.max-retaining-paths", 10);
+
+// Enable the Performance tools
+pref("devtools.performance.enabled", true);
+// But not the pop-up.
+pref("devtools.performance.popup.feature-flag", false);
+// Override the default preset, which is "web-developer" on beta and release.
+pref("devtools.performance.recording.preset", "firefox-platform");
+pref("devtools.performance.recording.preset.remote", "firefox-platform");
+
+// The default cache UI setting
+pref("devtools.cache.disabled", false);
+
+// The default service workers UI setting
+pref("devtools.serviceWorkers.testing.enabled", false);
+
+// Enable the Network Monitor
+pref("devtools.netmonitor.enabled", true);
+
+pref("devtools.netmonitor.features.search", true);
+pref("devtools.netmonitor.features.requestBlocking", true);
+
+// Enable the Application panel
+pref("devtools.application.enabled", false);
+
+// Enable the custom formatters feature
+// TODO remove once the custom formatters feature is stable (see bug 1734614)
+pref("devtools.custom-formatters", false);
+// This preference represents the user's choice to enable the custom formatters feature.
+// While the preference above will be removed once the feature is stable, this one is menat to stay.
+pref("devtools.custom-formatters.enabled", false);
+
+// The default Network Monitor UI settings
+pref("devtools.netmonitor.panes-network-details-width", 550);
+pref("devtools.netmonitor.panes-network-details-height", 450);
+pref("devtools.netmonitor.panes-search-width", 550);
+pref("devtools.netmonitor.panes-search-height", 450);
+pref("devtools.netmonitor.filters", "[\"all\"]");
+pref("devtools.netmonitor.visibleColumns",
+ "[\"status\",\"method\",\"domain\",\"file\",\"initiator\",\"type\",\"transferred\",\"contentSize\",\"waterfall\"]"
+);
+pref("devtools.netmonitor.columnsData",
+ '[{"name":"status","minWidth":30,"width":5}, {"name":"method","minWidth":30,"width":5}, {"name":"domain","minWidth":30,"width":10}, {"name":"file","minWidth":30,"width":25}, {"name":"url","minWidth":30,"width":25},{"name":"initiator","minWidth":30,"width":10},{"name":"type","minWidth":30,"width":5},{"name":"transferred","minWidth":30,"width":10},{"name":"contentSize","minWidth":30,"width":5},{"name":"waterfall","minWidth":150,"width":15}]');
+pref("devtools.netmonitor.msg.payload-preview-height", 128);
+pref("devtools.netmonitor.msg.visibleColumns",
+ '["data", "time"]'
+);
+pref("devtools.netmonitor.msg.displayed-messages.limit", 500);
+
+pref("devtools.netmonitor.response.ui.limit", 10240);
+
+// Save request/response bodies yes/no.
+pref("devtools.netmonitor.saveRequestAndResponseBodies", true);
+
+// The default Network monitor HAR export setting
+pref("devtools.netmonitor.har.defaultLogDir", "");
+pref("devtools.netmonitor.har.defaultFileName", "%hostname_Archive [%date]");
+pref("devtools.netmonitor.har.jsonp", false);
+pref("devtools.netmonitor.har.jsonpCallback", "");
+pref("devtools.netmonitor.har.includeResponseBodies", true);
+pref("devtools.netmonitor.har.compress", false);
+pref("devtools.netmonitor.har.forceExport", false);
+pref("devtools.netmonitor.har.pageLoadedTimeout", 1500);
+pref("devtools.netmonitor.har.enableAutoExportToFile", false);
+
+pref("devtools.netmonitor.features.webSockets", true);
+
+// netmonitor audit
+pref("devtools.netmonitor.audits.slow", 500);
+
+// Disable the EventSource Inspector.
+pref("devtools.netmonitor.features.serverSentEvents", false);
+
+// Enable the Storage Inspector
+pref("devtools.storage.enabled", true);
+
+// Enable the Style Editor.
+pref("devtools.styleeditor.enabled", true);
+pref("devtools.styleeditor.autocompletion-enabled", true);
+pref("devtools.styleeditor.showMediaSidebar", true);
+pref("devtools.styleeditor.mediaSidebarWidth", 238);
+pref("devtools.styleeditor.navSidebarWidth", 245);
+pref("devtools.styleeditor.transitions", true);
+
+// Screenshot Option Settings.
+pref("devtools.screenshot.clipboard.enabled", false);
+pref("devtools.screenshot.audio.enabled", true);
+
+// Make sure the DOM panel is hidden by default
+pref("devtools.dom.enabled", false);
+
+// Enable the Accessibility panel.
+pref("devtools.accessibility.enabled", true);
+
+// Web console filters
+pref("devtools.webconsole.filter.error", true);
+pref("devtools.webconsole.filter.warn", true);
+pref("devtools.webconsole.filter.info", true);
+pref("devtools.webconsole.filter.log", true);
+pref("devtools.webconsole.filter.debug", true);
+pref("devtools.webconsole.filter.css", false);
+pref("devtools.webconsole.filter.net", false);
+pref("devtools.webconsole.filter.netxhr", false);
+
+// Webconsole autocomplete preference
+pref("devtools.webconsole.input.autocomplete",true);
+#ifdef NIGHTLY_BUILD
+ pref("devtools.webconsole.input.context", true);
+#else
+ pref("devtools.webconsole.input.context", false);
+#endif
+
+// Set to true to eagerly show the results of webconsole terminal evaluations
+// when they don't have side effects.
+pref("devtools.webconsole.input.eagerEvaluation", true);
+
+// Browser console filters
+pref("devtools.browserconsole.filter.error", true);
+pref("devtools.browserconsole.filter.warn", true);
+pref("devtools.browserconsole.filter.info", true);
+pref("devtools.browserconsole.filter.log", true);
+pref("devtools.browserconsole.filter.debug", true);
+pref("devtools.browserconsole.filter.css", false);
+pref("devtools.browserconsole.filter.net", false);
+pref("devtools.browserconsole.filter.netxhr", false);
+
+// Max number of inputs to store in web console history.
+pref("devtools.webconsole.inputHistoryCount", 300);
+
+// Persistent logging: |true| if you want the relevant tool to keep all of the
+// logged messages after reloading the page, |false| if you want the output to
+// be cleared each time page navigation happens.
+pref("devtools.webconsole.persistlog", false);
+pref("devtools.netmonitor.persistlog", false);
+
+// Web Console timestamp: |true| if you want the logs and instructions
+// in the Web Console to display a timestamp, or |false| to not display
+// any timestamps.
+pref("devtools.webconsole.timestampMessages", false);
+
+// Enable the webconsole sidebar toggle in Nightly builds.
+#if defined(NIGHTLY_BUILD)
+ pref("devtools.webconsole.sidebarToggle", true);
+#else
+ pref("devtools.webconsole.sidebarToggle", false);
+#endif
+
+// Saved editor mode state in the console.
+pref("devtools.webconsole.input.editor", false);
+pref("devtools.browserconsole.input.editor", false);
+
+// Editor width for webconsole and browserconsole.
+pref("devtools.webconsole.input.editorWidth", 0);
+pref("devtools.browserconsole.input.editorWidth", 0);
+
+// Display an onboarding UI for the Editor mode.
+pref("devtools.webconsole.input.editorOnboarding", true);
+
+// Enable message grouping in the console, true by default
+pref("devtools.webconsole.groupWarningMessages", true);
+
+// Saved state of the Display content messages checkbox in the browser console.
+pref("devtools.browserconsole.contentMessages", true);
+
+// Enable network monitoring the browser toolbox console/browser console.
+pref("devtools.browserconsole.enableNetworkMonitoring", false);
+
+// Enable client-side mapping service for source maps
+pref("devtools.source-map.client-service.enabled", true);
+
+// The number of lines that are displayed in the web console.
+pref("devtools.hud.loglimit", 10000);
+
+// The developer tools editor configuration:
+// - tabsize: how many spaces to use when a Tab character is displayed.
+// - expandtab: expand Tab characters to spaces.
+// - keymap: which keymap to use (can be 'default', 'emacs' or 'vim')
+// - autoclosebrackets: whether to permit automatic bracket/quote closing.
+// - detectindentation: whether to detect the indentation from the file
+// - enableCodeFolding: Whether to enable code folding or not.
+pref("devtools.editor.tabsize", 2);
+pref("devtools.editor.expandtab", true);
+pref("devtools.editor.keymap", "default");
+pref("devtools.editor.autoclosebrackets", true);
+pref("devtools.editor.detectindentation", true);
+pref("devtools.editor.enableCodeFolding", true);
+pref("devtools.editor.autocomplete", true);
+
+// The angle of the viewport.
+pref("devtools.responsive.viewport.angle", 0);
+// The width of the viewport.
+pref("devtools.responsive.viewport.width", 320);
+// The height of the viewport.
+pref("devtools.responsive.viewport.height", 480);
+// The pixel ratio of the viewport.
+pref("devtools.responsive.viewport.pixelRatio", 0);
+// Whether or not the viewports are left aligned.
+pref("devtools.responsive.leftAlignViewport.enabled", false);
+// Whether to reload when touch simulation is toggled
+pref("devtools.responsive.reloadConditions.touchSimulation", false);
+// Whether to reload when user agent is changed
+pref("devtools.responsive.reloadConditions.userAgent", false);
+// Whether to show the notification about reloading to apply emulation
+pref("devtools.responsive.reloadNotification.enabled", true);
+// Whether or not touch simulation is enabled.
+pref("devtools.responsive.touchSimulation.enabled", false);
+// The user agent of the viewport.
+pref("devtools.responsive.userAgent", "");
+
+// Show the custom user agent input in Nightly builds.
+#if defined(NIGHTLY_BUILD)
+ pref("devtools.responsive.showUserAgentInput", true);
+#else
+ pref("devtools.responsive.showUserAgentInput", false);
+#endif
+
+// Show tab debug targets for This Firefox (on by default for local builds).
+#ifdef MOZILLA_OFFICIAL
+ pref("devtools.aboutdebugging.local-tab-debugging", false);
+#else
+ pref("devtools.aboutdebugging.local-tab-debugging", true);
+#endif
+
+// Show process debug targets.
+pref("devtools.aboutdebugging.process-debugging", true);
+// Stringified array of network locations that users can connect to.
+pref("devtools.aboutdebugging.network-locations", "[]");
+// Debug target pane collapse/expand settings.
+pref("devtools.aboutdebugging.collapsibilities.installedExtension", false);
+pref("devtools.aboutdebugging.collapsibilities.otherWorker", false);
+pref("devtools.aboutdebugging.collapsibilities.serviceWorker", false);
+pref("devtools.aboutdebugging.collapsibilities.sharedWorker", false);
+pref("devtools.aboutdebugging.collapsibilities.tab", false);
+pref("devtools.aboutdebugging.collapsibilities.temporaryExtension", false);
+
+// about:debugging: only show system and hidden extensions in local builds by
+// default.
+#ifdef MOZILLA_OFFICIAL
+ pref("devtools.aboutdebugging.showHiddenAddons", false);
+#else
+ pref("devtools.aboutdebugging.showHiddenAddons", true);
+#endif
+
+// Map top-level await expressions in the console
+pref("devtools.debugger.features.map-await-expression", true);
+
+// This relies on javascript.options.asyncstack as well or it has no effect.
+pref("devtools.debugger.features.async-captured-stacks", true);
+pref("devtools.debugger.features.async-live-stacks", false);
+
+// Disable autohide for DevTools popups and tooltips.
+// This is currently not exposed by any UI to avoid making
+// about:devtools-toolbox tabs unusable by mistake.
+pref("devtools.popup.disable_autohide", false);
+
+// Enable overflow debugging in the inspector.
+pref("devtools.overflow.debugging.enabled", true);
+// Enable drag to edit properties in the inspector rule view.
+pref("devtools.inspector.draggable_properties", true);
+
+// Telemetry settings.
+
+// Server to submit telemetry pings to.
+pref("toolkit.telemetry.server", "https://incoming-telemetry.thunderbird.net");
+pref("toolkit.telemetry.server_owner", "Thunderbird");
+
+// Determines if Telemetry pings can be archived locally.
+pref("toolkit.telemetry.archive.enabled", true);
+// Enables sending the shutdown ping when Thunderbird shuts down.
+pref("toolkit.telemetry.shutdownPingSender.enabled", true);
+// Enables sending the shutdown ping using the pingsender from the first session.
+pref("toolkit.telemetry.shutdownPingSender.enabledFirstSession", false);
+// Enables sending a duplicate of the first shutdown ping from the first session.
+pref("toolkit.telemetry.firstShutdownPing.enabled", true);
+// Enables sending the 'new-profile' ping on new profiles.
+pref("toolkit.telemetry.newProfilePing.enabled", true);
+// Enables sending 'update' pings on Thunderbird updates.
+pref("toolkit.telemetry.updatePing.enabled", true);
+// Enables sending 'bhr' pings when the app hangs.
+pref("toolkit.telemetry.bhrPing.enabled", true);
+// Whether to enable Ecosystem Telemetry, requires a restart.
+#ifdef NIGHTLY_BUILD
+ pref("toolkit.telemetry.ecosystemtelemetry.enabled", true);
+#else
+ pref("toolkit.telemetry.ecosystemtelemetry.enabled", false);
+#endif
+
+#ifdef XP_WIN
+pref("mail.minimizeToTray", false);
+#endif
+
+pref("prompts.defaultModalType", 3);
+pref("prompts.contentPromptSubDialog", false);
+
+// The URL for the privacy policy related to recommended extensions.
+pref("extensions.recommendations.privacyPolicyUrl", "https://www.mozilla.org/en-US/privacy/thunderbird/#addons");
+
+// Used by pdf.js to know the first time Thunderbird is run with it installed
+// so it can become the default pdf viewer.
+pref("pdfjs.firstRun", true);
+// The values of preferredAction and alwaysAskBeforeHandling before pdf.js
+// became the default.
+pref("pdfjs.previousHandler.preferredAction", 0);
+pref("pdfjs.previousHandler.alwaysAskBeforeHandling", false);
+
+pref("mail.activity.loglevel", "Warn");
+
+// The number of public recipients before we offer BCC addressing.
+pref("mail.compose.warn_public_recipients.threshold", 15);
+
+// Indicates whether to show an alert before send if no action taken while the
+// too many public recipients notification is shown.
+pref("mail.compose.warn_public_recipients.aggressive", false);
+
+// The URL of most things that can be printed is useless information.
+// Hide it and move the title to the center.
+pref("print.print_headerleft", "");
+pref("print.print_headercenter", "&T");
+pref("print.print_headerright", "");
+
+// Enable Masonry Layout for AddressBook.
+pref("layout.css.grid-template-masonry-value.enabled", true);
+
+#ifdef NIGHTLY_BUILD
+// If set to false, FxAccounts and Sync will be unavailable.
+// A restart is mandatory after flipping that preference.
+pref("identity.fxaccounts.enabled", true);
+pref("identity.fxaccounts.log.sensitive", true);
+pref("services.sync.log.appender.console", "Info");
+// Auto-config URL for FxA self-hosters, makes an HTTP request to
+// [identity.fxaccounts.autoconfig.uri]/.well-known/fxa-client-configuration
+// This is now the prefered way of pointing to a custom FxA server, instead
+// of making changes to "identity.fxaccounts.*.uri".
+pref("identity.fxaccounts.autoconfig.uri", "https://accounts.stage.mozaws.net");
+// The remote FxA root content URL. Must use HTTPS.
+pref("identity.fxaccounts.remote.root", "https://accounts.stage.mozaws.net");
+// The value of the context query parameter passed in FxA requests.
+pref("identity.fxaccounts.contextParam", "fx_desktop_v3");
+// Token server used by the FxA Sync identity.
+pref("identity.sync.tokenserver.uri", "https://token.stage.mozaws.net/1.0/sync/1.5");
+// Adds stage server to the white list, because we need it.
+pref("webchannel.allowObject.urlWhitelist", "https://content.cdn.mozilla.net https://support.mozilla.org https://install.mozilla.org https://accounts.stage.mozaws.net");
+// Adds Firefox/10x.0 to the User-Agent string, because we need it.
+// TODO: Fix this.
+pref("general.useragent.compatMode.firefox", true);
+
+// Enable the sync engines we want, and disable the ones we don't want.
+pref("services.sync.engine.accounts", true);
+pref("services.sync.engine.addons", false);
+pref("services.sync.engine.addressbooks", true);
+pref("services.sync.engine.addresses", false);
+pref("services.sync.engine.calendars", true);
+pref("services.sync.engine.creditcards", false);
+pref("services.sync.engine.identities", true);
+pref("services.sync.engine.prefs", false);
+#endif
+
+// Donation appeal.
+pref("app.donation.eoy.version", 4);
+pref("app.donation.eoy.version.viewed", 0);
+pref("app.donation.eoy.url", "https://www.thunderbird.net/thunderbird/115.0/holidayeoy/");
+
+// IMAP-JS disabled, Bug 1707547.
+pref("mailnews.imap.jsmodule", false);
+
+// Unified toolbar
+
+// 0: icons beside text
+// 1: icons above text
+// 2: icons only
+// 3: text only
+pref("toolbar.unifiedtoolbar.buttonstyle", 0);