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: 21

Experiment

Rollout

Firefox

Dates		Surface	Metrics	Visuals
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
2025/9/25 - 2025/10/30	Taskbar Tabs Discovery Rollout (EN, DE, FR, IT) taskbar-tabs-discovery-en-rollout
	delivery delivery	1st of Multiple Messages	Dashboard
2025/9/24 - 2025/11/13	Windows 10 EoS Sync Messaging (Background Message) Rollout 1 windows-10-eos-sync-messaging-background-message-rollout-1
	Background message treatment-a	Toast Notification
2025/9/24 - 2025/11/13	Windows 10 EoS Sync Messaging Rollout 1 windows-10-eos-sync-messaging-rollout-1
	Six message series treatment-a	1st of Multiple Messages	Dashboard
2025/9/23 - 2025/10/21	ETP Strict Message Nightly etp-strict-message-nightly
	Global Infobar control	InfoBar	Dashboard
2025/9/19 - 2026/9/19	Pin Frequently Used Websites - 143 - Promo Rollout, All Locales pin-frequently-used-websites-143-promo-rollout-all-locales
	Pin sites you visit the most - NO image (Treatment B) rollout-branch	Feature Callout (1st screen)	Dashboard
2025/9/16 - 2026/9/16	Pin Frequently Used Websites - EN-* Promo Rollout, no min version pin-frequently-used-websites-en-promo-rollout-no-min-version
	Pin sites you visit the most - NO image rollout-branch	Feature Callout (1st screen)	Dashboard
2025/9/15 - 2025/10/13	Account Adoption PXI Menu - Fx141-Fx142 account-adoption-pxi-menu-fx141-fx142
	Sync focused value proposition treatment-a	menu_message		Screenshots
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
2025/8/21 - 2026/8/21	AI Chatbot Page Summarization MVP - treatment-a-callout-badge Rollout ai-chatbot-page-summarization-mvp-treatment-a-callout-badge-rollout
	Callout page summarization with badging treatment-a-callout-badge	1st of Multiple Messages	Dashboard
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
2025/7/10 - 2026/1/6	Multiple Profile Switching Rollout multiple-profile-switching-feature-v1-rollout
	Multi-profile feature enabled and callouts treatment-a-multi-profiles	1st of Multiple Messages	Dashboard
2025/6/26 - 2025/7/24	1-Callout Contextual Chatbot Suggestion Treatment A: Tab Switching Copy Rollout 1-callout-contextual-chatbot-suggestion-treatment-a-tab-switching-copy-rollout
	Use an AI chatbot without switching tabs treatment-a-tab-switching-copy	Feature Callout (1st screen)	Dashboard
2025/6/18 - 2026/6/18	Vertical tabs feature callout experiment v2.0 - Treatment A Rollout vertical-tabs-feature-callout-experiment-v20-treatment-a-rollout
	Overwhelmed by too many tabs value prop treatment-a	Feature Callout (1st screen)	Dashboard
2025/4/29 - 2026/4/29	Upgraded sidebar - 138 broad rollout upgraded-sidebar-138-broad-rollout
	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
2025/4/11 - 2025/5/9	Login Status Advisory Callout - Rollout login-status-advisory-callout-rollout
	Message variant A treatment-a	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
2025/2/4 - 2025/3/4	PDF Annotations - Highlight - Treatment B Rollout pdf-annotations-highlight-treatment-b-rollout
	Both variants - already default and not default treatment-b	1st of Multiple Messages	Dashboard
2025/1/28 - 2025/3/4	Fox Doodle Multi-Action CTA 2025 - Rollout fox-doodle-multi-action-cta-2025-rollout
	Checkbox Multi CTA variant & Fox Doodle/Tail Fox treatment-a	1st of Multiple Messages	Dashboard
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: 16

Experiment

Rollout

Firefox

Dates		Surface	Metrics	Visuals
2025/9/29 - 2025/11/3	Set to Default - Hamburger Menu Mac (Relaunch) set-to-default-hamburger-menu-mac-relaunch
	Default experience, no message in hamburger menu control	menu_message
	Add “set to default” illustration layout to the hamburger menu treatment-b	menu_message		Screenshots
	Add “set to default” logo layout to the hamburger menu treatment-c	menu_message		Screenshots
2025/9/29 - 2025/11/3	Set to Default - Hamburger Menu Windows (relaunch) set-to-default-hamburger-menu-windows-relaunch
	Default experience, no message in hamburger menu control	menu_message
	Add “set to default” simple layout to the hamburger menu treatment-a	menu_message		Screenshots
	Add “set to default” illustration layout to the hamburger menu treatment-b	menu_message		Screenshots
	Add “set to default” logo layout to the hamburger menu treatment-c	menu_message		Screenshots
2025/9/26 - 2025/10/31	Recommend Privacy and Security Features - All Segments (Existing Users) Rerun recommend-privacy-and-security-features-all-segments-existing-users-rerun
	Default experience, no callouts control	1st of Multiple Messages
	Recently released feature recommendation callouts (4 in total) with 24 hours check (cfr group) treatment-b	1st of Multiple Messages	Dashboard
2025/9/25 - 2025/10/23	Address-Bar-Tips-V1 address-bar-tips
	Users don’t see any new messaging on the New Tab page. control	none
	When users with Google set as their default search engine open a New Tab, we’ll display a “Tip: Search here” message newtab-tip-save-step	Feature Callout (1st screen)	Dashboard
	When users with Google set as their default search engine open a New Tab, we’ll display a “Try a new way..” message newtab-try-new-way	Feature Callout (1st screen)	Dashboard
2025/9/25 - 2025/10/23	Address-Bar-Tips-V2 address-bar-tips-v2
	Users don’t see any new messaging after navigating to google.com control	none
	When users navigate to google.com, we’ll display a “Try a faster way” message newtab-tip-save-step	Feature Callout (1st screen)	Dashboard
	When users navigate to google.com, we’ll display a “Want to search your history.” message newtab-try-new-way	Feature Callout (1st screen)	Dashboard
2025/9/25 - 2025/10/16	Onboarding - Show Import Screen Copy v2 onboarding-show-import-screen-copy-v2
	Import screen not present, import callout on newtab control	none
	Import screen present in onboarding, no import callout treatment-branch	About:Welcome Page (1st screen)	Dashboard
2025/9/22 - 2025/10/20	New Tab Automated Personalization new-tab-inferred-content-personalization
	No content personalization control	none
	Personalization enabled recommended-topics	newtab_message		Screenshots
2025/9/22 - 2025/11/3	ToU Existing Users Modal 1 EN tou-existing-users-modal-1-en
	No modal control	Spotlight Modal Dialog	Dashboard
	Modal treatment-a	Spotlight Modal Dialog	Dashboard
2025/9/17 - 2025/10/22	Account adoption callout - Bookmarks account-adoption-callout-bookmarks
	No-message control control	none
	Backup value prop treatment-a	Feature Callout (1st screen)	Dashboard
	Sync value prop treatment-b	Feature Callout (1st screen)	Dashboard
2025/9/3 - 2025/10/8	Taskbar Tabs Discovery V2 - Use Cases taskbar-tabs-discovery-v2-use-cases
	no-message control control	none
	Social sites treatment-a	Feature Callout (1st screen)	Dashboard
	Chat apps treatment-b	Feature Callout (1st screen)	Dashboard
	Email treatment-c	Feature Callout (1st screen)	Dashboard
	Media treatment-d	Feature Callout (1st screen)	Dashboard
	Gaming treatment-e	Feature Callout (1st screen)	Dashboard
	Files treatment-f	Feature Callout (1st screen)	Dashboard
	Calendar treatment-g	Feature Callout (1st screen)	Dashboard
2025/8/26 - 2025/9/30	Taskbar Tabs Discovery taskbar-tabs-discovery
	no-message control control	none
	taskbar value prop treatment-a	Feature Callout (1st screen)	Dashboard
	App value prop treatment-b	Feature Callout (1st screen)	Dashboard
	privacy value prop treatment-c	Feature Callout (1st screen)	Dashboard
2025/8/13 - 2025/10/2	Windows 10 EoS Sync Messaging windows-10-eos-sync-messaging
	No message control (dummy) control	1st of Multiple Messages
	Six message series treatment-a	1st of Multiple Messages	Dashboard
2025/8/13 - 2025/10/2	Windows 10 EoS Sync Messaging (Background Message) windows-10-eos-sync-messaging-background-message
	Six message series treatment-a	Toast Notification
2025/8/6 - 2025/9/3	ToS Existing Users - LatAm Infobar Test v2 tos-existing-users-latam-infobar-test-v2
	No infobar control	none
	White infobar treatment-a	InfoBar	Dashboard
	Blue infobar treatment-b	InfoBar	Dashboard
2025/4/29 - 2026/2/24	Multiple profile switching feature v1 multiple-profile-switching-feature-v1
	No Multi-profile feature control	1st of Multiple Messages
	Multi-profile feature enabled and callouts treatment-a-multi-profiles	1st of Multiple Messages	Dashboard
2025/4/7 - 2026/2/2	Multiple profile switching feature multiple-profile-switching-feature
	No Multi-profile feature control	1st of Multiple Messages
	Multi-profile feature enabled and callouts treatment-a-multi-profiles	1st of Multiple Messages	Dashboard