Skylight (FxMS tool)

Skylight

Desktop Messages Released on Firefox

Message ID	Surface	Metrics Hide messages with fewer than 1000 impressions
MR_WELCOME_DEFAULT	Default About:Welcome Message (1st screen)	Dashboard
FAKESPOT_CALLOUT_OPTED_OUT_SURVEY Microsurvey	Feature Callout (1st screen)	Dashboard
ADDONS_STAFF_PICK_PT_2	Feature Callout (1st screen)	Dashboard
FIREFOX_VIEW_TAB_PICKUP_REMINDER	Feature Callout (1st screen)	Dashboard
PDFJS_FEATURE_TOUR_A	Feature Callout (1st screen)
PDFJS_FEATURE_TOUR_B	Feature Callout (1st screen)
FAKESPOT_CALLOUT_CLOSED_OPTED_IN_DEFAULT	Feature Callout (1st screen)	Dashboard
FAKESPOT_CALLOUT_CLOSED_NOT_OPTED_IN_DEFAULT	Feature Callout (1st screen)	Dashboard
FAKESPOT_CALLOUT_PDP_OPTED_IN_DEFAULT	Feature Callout (1st screen)	Dashboard
FAKESPOT_CALLOUT_CLOSED_NOT_OPTED_IN_AUTO_OPEN	Feature Callout (1st screen)	Dashboard
FAKESPOT_CALLOUT_PDP_NOT_OPTED_IN_REMINDER	Feature Callout (1st screen)	Dashboard
FAKESPOT_CALLOUT_DISABLED_AUTO_OPEN	Feature Callout (1st screen)	Dashboard
FAKESPOT_CALLOUT_OPTED_OUT_AUTO_OPEN	Feature Callout (1st screen)	Dashboard
CFR_COOKIEBANNER	Feature Callout (1st screen)	Dashboard
FIREFOX_VIEW_FEATURE_TOUR	Feature Callout (1st screen)	Dashboard
INFOBAR_LAUNCH_ON_LOGIN	InfoBar	Dashboard
INFOBAR_LAUNCH_ON_LOGIN_FINAL	InfoBar	Dashboard
MILESTONE_MESSAGE_87	Milestone Messages
PB_NEWTAB_FOCUS_PROMO	Private Browsing New Tab
PB_NEWTAB_KLAR_PROMO	Private Browsing New Tab
PB_NEWTAB_KLAR_PROMO_DE	Private Browsing New Tab
PB_NEWTAB_PIN_PROMO	Private Browsing New Tab
PB_NEWTAB_COOKIE_BANNERS_PROMO	Private Browsing New Tab
FX_MR_106_UPGRADE	Spotlight Modal Dialog	Dashboard
FX_100_UPGRADE	Spotlight Modal Dialog	Dashboard
FOX_DOODLE_SET_DEFAULT	Spotlight Modal Dialog	Dashboard
TAIL_FOX_SET_DEFAULT	Spotlight Modal Dialog	Dashboard
FIREFOX_VIEW_SPOTLIGHT	Spotlight Modal Dialog
SET_DEFAULT_BROWSER_GUIDANCE_NOTIFICATION_WIN10	Toast Notification
SET_DEFAULT_BROWSER_GUIDANCE_NOTIFICATION_WIN11	Toast Notification
FXA_ACCOUNTS_BADGE	Toolbar Badge
FXA_ACCOUNTS_BADGE_REVISED	Toolbar Badge

Current Desktop Message Rollouts

Total: 29

Experiment

Rollout

Firefox

Dates		Surface	Metrics	Visuals
2026/3/23 - 2026/4/20	VPN - MVP Beta Rollout vpn-limited-rollout
	Firefox VPN is available. mvp-beta	1st of Multiple Messages	Dashboard
2026/3/20 - 2026/4/24	Fox Doodle Multi-Action CTA 2025 - Dummy Rollout V2 fox-doodle-multi-action-cta-2025-dummy-rollout-v2
	Checkbox Multi CTA variant & Fox Doodle/Tail Fox treatment-a	1st of Multiple Messages		Screenshots
2026/3/19 - 2026/5/18	Onboarding Rollout Mar 2026 - No Checklist onboarding-rollout-feb-2026-brand-refresh-relaunch
	Fullscreen about welcome with account login screen, no checklist treatment-branch	About:Welcome Page (1st screen)	Dashboard
2026/3/10 - 2026/4/7	PDF Annotations Signatures - Treatment A - Already Default Rollout pdf-annotations-signatures-treatment-a-already-default-rollout
	PDF signatures focus, already default only treatment-a	Feature Callout (1st screen)	Dashboard
2026/3/9 - 2026/4/6	TOU Experience 1 - Rollout tou-experience-1-rollout
	White infobar for 2 wks then blue infobar for 2 wks treatment-a	1st of Multiple Messages
2026/3/3 - 2026/3/31	TOU Experience 2 - Rollout V2 tou-experience-2-rollout-v2
	White infobar for 4 weeks treatment-a	1st of Multiple Messages		Screenshots
2026/2/24 - 2026/3/24	1-Callout Contextual Chatbot Suggestion Treatment A Rollout V2 1-callout-contextual-chatbot-suggestion-treatment-a-rollout-v2
	Use an AI chatbot without switching tabs treatment-a-tab-switching-copy	Feature Callout (1st screen)	Dashboard
2026/2/24 - 2026/3/24	AI Chatbot Page Summarization MVP - treatment-a-callout-badge Rollout V4 ai-chatbot-page-summarization-mvp-treatment-a-callout-badge-rollout-v4
	Callout page summarization with badging treatment-a-callout-badge	1st of Multiple Messages	Dashboard
2026/2/24 - 2026/4/25	Onboarding Rollout Feb 2026 - Brand Refresh - Non-Localized onboarding-rollout-feb-2026-brand-refresh-non-localized
	Bookmarks toolbar always on, fullscreen about welcome with account login screen, checklist present treatment-branch	About:Welcome Page (1st screen)	Dashboard
2026/2/24 - 2027/2/24	Vertical tabs Promo Rollout - Day 3 Profiles, All Locales vertical-tabs-promo-rollout-day-3-profiles-all-locales
	Overwhelmed by too many tabs value prop treatment-a	Feature Callout (1st screen)	Dashboard
2026/2/23 - 2027/2/23	Pin Frequently Used Websites - Promo Rollout, Day 3+ users, All Locales pin-frequently-used-websites-promo-rollout-day-3-users-all-locales
	Pin sites you visit the most - NO image (Treatment B) rollout-branch	Feature Callout (1st screen)	Dashboard
2026/2/23 - 2027/2/23	Sidebar customization message - Day 3 users, All Locales sidebar-customization-message-day-3-users-all-locales
	Sidebar button is added to the toolbar, sidebar is NOT visible, the callout is displayed after opening one tab rollout-treatment	Feature Callout (1st screen)	Dashboard
2026/1/30 - 2026/2/27	AI Chatbot Page Summarization MVP - V2 Copy ai-chatbot-page-summarization-mvp-v2-copy
	Callout page summarization with badging treatment-a-callout-badge	1st of Multiple Messages	Dashboard
2026/1/13 - 2026/2/10	Set to Default - Hamburger Menu Rollout set-to-default-hamburger-menu-rollout
	Add “set to default” illustration layout to the hamburger menu (Windows & Mac) treatment-c	1st of Multiple Messages		Screenshots
2025/12/22 - 2026/3/22	TOU Experience 0 rollout non-US tou-experience-0-rollout-non-us
	White infobar for 2 wks, blue infobar for 2 wks, modal for up to 5 days / 5 times without interaction control	1st of Multiple Messages
2025/12/22 - 2026/3/22	TOU Experience 0 rollout US tou-experience-0-rollout-us
	White infobar for 2 wks, blue infobar for 2 wks, modal for up to 5 days / 5 times without interaction control	1st of Multiple Messages
2025/12/15 - 2026/2/23	Updated Privacy Notice Notification updated-privacy-notice-notification
	Privacy update infobar shown treatment	InfoBar	Dashboard
2025/12/9 - 2026/1/13	Account adoption callout for Bookmarks - Global Rollout account-adoption-callout-for-bookmarks-global-rollout
	Backup value prop treatment	Feature Callout (1st screen)	Dashboard
2025/11/25 - 2026/1/14	Windows 10 EoS Sync and Reminder Messaging Rollout windows-10-eos-sync-and-reminder-messaging-rollout
	Series of sync and reminder messages treatment-a	1st of Multiple Messages	Dashboard
2025/11/12 - 2026/5/11	Multiple Profile Switching Rollout V2 multiple-profile-switching-rollout-v2
	Multi-profile feature enabled and callouts treatment-a-multi-profiles	1st of Multiple Messages	Dashboard
2025/10/17 - 2025/11/21	Taskbar Tabs Discovery Global Rollout taskbar-tabs-discovery-global-rollout
	delivery delivery	1st of Multiple Messages	Dashboard
2025/10/3 - 2025/10/4	Roll out Expanded sign-in PXI toolbar button w/callout (Signed out) roll-out-expanded-sign-in-pxi-toolbar-button-wcallout-signed-out
	Adding "Sign in" text to the FxA avatar button with Login message callout sign-in-with-call-out	Feature Callout (1st screen)	Dashboard
2025/10/1 - 2025/10/29	Account adoption callout - credit cards - treatment-c rollout account-adoption-callout-credit-cards-treatment-c-rollout
	Credit card & backup treatment-c	Feature Callout (1st screen)	Dashboard
2025/9/30 - 2025/10/1	Acct adoption callout - addresses rollout with no PXI exclusion acct-adoption-callout-addresses-rollout-with-pxi-required
	Address & Backup treatment-a	Feature Callout (1st screen)	Dashboard
2025/9/15 - 2025/10/13	Account Adoption PXI Menu - Rollout Fx143+ account-adoption-pxi-menu-rollout-v2
	Sync focused value proposition treatment-a	menu_message		Screenshots
2025/7/25 - 2026/7/25	Account spotlight modal - Global rollout - V3 account-spotlight-modal-global-rollout-v3
	Show the "sync" treatment from spotlight-modal-to-drive-accounts-via-backup-value-prop rollout	Spotlight Modal Dialog	Dashboard
2025/7/22 - 2025/8/19	Account Adoption Callout Passwords - Global Rollout account-adoption-callout-passwords-global-rollout
	Treatment E - Password + Backup treatment-e	Feature Callout (1st screen)	Dashboard
2025/2/20 - 2026/2/20	Mozilla VPN in Private Browsing - Treatment D Rollout (EN only) mozilla-vpn-in-private-browsing-treatment-d-rollout-en-only
	treatment focusing on explaining what makes Mozilla VPN different treatment-d	Private Browsing New Tab		Screenshots
2024/11/25 - 2025/11/25	Expand sidebar callout (existing profiles) sidebar-button-feature-callout-vertical-tabs-users-existing-profiles
	Feature callout for vertical tabs users who have not clicked the sidebar button control	Feature Callout (1st screen)	Dashboard

Current Desktop Message Experiments

Total: 17

Experiment

Rollout

Firefox

Dates		Surface	Metrics	Visuals
2026/3/24 - 2026/5/5	Split View Onboarding split-view-onboarding
	No Message - Exposure control	none
	Multitasking value prop + try it now CTA treatment-a	1st of Multiple Messages	Dashboard
	Multitasking value prop + try split view CTA treatment-b	1st of Multiple Messages	Dashboard
	See two tabs at once value prop + Try it now CTA treatment-c	1st of Multiple Messages	Dashboard
	See two tabs at once value prop + Try split view CTA treatment-d	1st of Multiple Messages	Dashboard
2026/3/23 - 2026/4/6	Auto Trigger Pin to Taskbar Notification - No Checklist Nightly auto-trigger-pin-to-taskbar-notification-no-checklist-nightly
	Onboarding rollout Feb 2026 - brand refresh control	none
	Preserve checkbox experience with save and continue CTA treatment-a	About:Welcome Page (1st screen)	Dashboard
	No checkboxes and set as default is the only CTA treatment-b	About:Welcome Page (1st screen)	Dashboard
2026/3/23 - 2026/4/20	Optimize multi-action/tail fox modals for existing users V2 optimize-multi-actiontail-fox-modals-for-existing-users-v2
	no-message control control	none
	One step spotlights treatment-a	1st of Multiple Messages	Dashboard
	Spotlight plus split import treatment-b	1st of Multiple Messages	Dashboard
	Easy setup & import treatment-c	1st of Multiple Messages	Dashboard
2026/3/23 - 2026/4/20	VPN - MVP Beta Holdback vpn-mvp-beta-holdback
	Firefox VPN is not available. control	1st of Multiple Messages
	Firefox VPN is available. mvp-beta	1st of Multiple Messages	Dashboard
2026/3/19 - 2026/4/2	Auto Trigger Pin to Taskbar Notification - No Checklist auto-trigger-pin-to-taskbar-notification-no-checklist
	Onboarding rollout Feb 2026 - brand refresh control	none
	Preserve checkbox experience with save and continue CTA treatment-a	About:Welcome Page (1st screen)	Dashboard
	No checkboxes and set as default is the only CTA treatment-b	About:Welcome Page (1st screen)	Dashboard
2026/3/13 - 2026/3/24	Privacy and Security copy experiment (first run) privacy-and-security-copy-experiment-first-run
	Bookmarks toolbar always on, fullscreen about welcome with account login screen, checklist present control	none
	Privacy and security copy on the first screen treatment-a	About:Welcome Page (1st screen)	Dashboard
2026/3/11 - 2026/4/8	HNT Wattle / Three Widgets in Non-Content Market (English Only) hnt-wattle-three-widgets-in-non-content-market-english-only
	No Widgets control	none		Screenshots
	The user sees all three widgets enabled by default treatment	newtab_message		Screenshots
2026/3/5 - 2026/3/19	Churned New Profiles Day 5 Resurrection (Feature Recommendation) churned-new-profiles-day-5-resurrection-feature-recommendation
	no-message control control	none
	WNP-AI-Controls treatment-a	Toast Notification
	Tab-groups-vertical-tabs treatment-b	Toast Notification
2026/3/5 - 2026/3/19	Onboarding Animate First-Run Illustrations onboarding-animate-first-run-illustrations
	Onboarding rollout Feb 2026 - brand refresh control	none
	Purple background (no animated Kits) treatment-a	About:Welcome Page (1st screen)	Dashboard
	Animated background & Kits treatment-b	About:Welcome Page (1st screen)	Dashboard
2026/3/3 - 2026/4/7	Introduce search on new tab page Copy ( In countries with no content) re-run introduce-search-on-new-tab-page-copy-in-countries-with-no-content-re-run
	Control control	none
	New Tab with Search bar + Shortcuts + Customize message + Expanded customize button variant-a	newtab_message
2026/3/3 - 2026/4/7	Recommend customization on new tab page re-run recommend-customization-on-new-tab-page-re-run
	Control control	none
	New Tab with Search bar + Shortcuts + Expanded customize button variant-a	none
	New Tab with Search bar + Shortcuts + Customize message + Expanded customize button variant-b	newtab_message
2026/3/2 - 2026/3/30	Set to default guidance notification V2 set-to-default-guidance-notification-v2
	existing (old) message control	Toast Notification		Screenshots
	treatment a - title, body and new image treatment-a	Toast Notification		Screenshots
	treatment b - title and new image treatment-b	Toast Notification		Screenshots
2026/2/26 - 2026/3/19	Week 1 Privacy-Focused Nudges for Resurrected Users week-1-privacy-focused-nudges-for-resurrected-users
	Default experience, no callouts control	1st of Multiple Messages
	Privacy-fact callouts ("set to default") treatment-a	1st of Multiple Messages	Dashboard
	Privacy-fact callouts ("open all links with Firefox") treatment-b	1st of Multiple Messages	Dashboard
2026/1/16 - 2026/2/13	New Tab Automated Personalization - v4 new-tab-automated-personalization-v4
	No content personalization control	none
	Personalization enabled with local top stories re-ranking personalized-stories	newtab_message
2025/12/22 - 2026/1/26	TOU Experience 0 non-US holdback experiment tou-experience-0-non-us-holdback-experiment
	No messages control	1st of Multiple Messages
	White infobar for 2 wks, blue infobar for 2 wks, modal for up to 5 days / 5 times without interaction treatment-a	1st of Multiple Messages
2025/12/22 - 2026/1/26	TOU Experience 0 US holdback experiment tou-experience-0-us-holdback-experiment
	No messages control	1st of Multiple Messages
	White infobar for 2 wks, blue infobar for 2 wks, modal for up to 5 days / 5 times without interaction treatment-a	1st of Multiple Messages
2025/10/3 - 2026/4/4	Firefox VPN for Windows 10 Users - Alpha firefox-vpn-for-windows-10-users
	Firefox VPN (Alpha variant) is available. alpha	1st of Multiple Messages	Dashboard
	Firefox VPN is not available. control	none