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# About Welcome
## What is about:welcome
A full-page multistep onboarding experience on `about:welcome` that appears to all new Firefox users after Firefox has successfully been installed.
Onboarding experience on `about:welcome` shows screens following below precedence order:
- Has AMO attribution
- Return to AMO custom onboarding screens
- Experiments
- Return `MR_ABOUT_WELCOME_DEFAULT` [screens](https://searchfox.org/mozilla-central/rev/3b707c8fd7e978eebf24279ee51ccf07895cfbcb/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm#523) after applying dynamic rules inside [prepareContentForReact](https://searchfox.org/mozilla-central/rev/3b707c8fd7e978eebf24279ee51ccf07895cfbcb/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm#577) method. Each screen can additionally be dynamically configured to show/hide via [screen level targeting](https://searchfox.org/mozilla-central/rev/3b707c8fd7e978eebf24279ee51ccf07895cfbcb/browser/components/newtab/aboutwelcome/lib/AboutWelcomeDefaults.jsm#90).
Spotlight messaging surface shows `about:welcome` screens content with the appearance of a spotlight modal by using exposed window.AW* interfaces. This [Unified Onboarding](https://docs.google.com/document/d/1o8W-gEkgw2GC7KFSfQRkKfWzNJg1-6fpkVPrYmmot4Y/edit) approach enables reusing `about:welcome` as rendering engine for multiple messaging surfaces such as Spotlight and Feature Callout.
## Testing about:welcome screens
### Via Screens Pref:
1. Go to `about:config`, search for `browser.aboutwelcome.screens` and set it to the array of screens value to be used in JSON recipe
2. Go to about:welcome and you should see the about:welcome screen(s)
**Note:** If you are enrolled in a nimbus experiment, about.welcome.screens will not show up
### Via Experiments
You can test custom `about:welcome` UI by creating an experiment. [Messaging Journey](https://experimenter.info/messaging/desktop-messaging-journey) captures creating and testing experiments via Nimbus.
### Example JSON screens property
```
[
{
"id": "TEST_SCREEN_1",
"content": {
"position": "split",
"split_narrow_bkg_position": "-155px",
"progress_bar": "true",
"background": "url('chrome://activity-stream/content/data/content/assets/mr-pintaskbar.svg') var(--mr-secondary-position) no-repeat #F8F6F4",
"logo": {},
"title": "Welcome to Firefox",
"subtitle": "Launch a healthier internet from anywhere with a single click.",
"primary_button": {
"label": {
"string_id": "mr2022-onboarding-pin-primary-button-label"
},
"action": {
"navigate": true,
"type": "PIN_FIREFOX_TO_TASKBAR"
}
},
"checkbox": {
"label": "Also add private browsing",
"defaultValue": true,
"action": {
"type": "MULTI_ACTION",
"navigate": true,
"data": {
"actions": [
{
"type": "PIN_FIREFOX_TO_TASKBAR",
"data": {
"privatePin": true
}
},
{
"type": "PIN_FIREFOX_TO_TASKBAR"
}
]
}
}
},
"secondary_button": {
"label": "Next Screen",
"action": {
"navigate": true
},
"has_arrow_icon": true
}
}
},
{
"id": "TEST_SCREEN_2",
"content": {
"position": "split",
"progress_bar": "true",
"split_narrow_bkg_position": "-228px",
"background": "url('chrome://activity-stream/content/data/content/assets/mr-gratitude.svg') var(--mr-secondary-position) no-repeat #F8F6F4",
"logo": {},
"title": "You’re helping us build a better web",
"subtitle": "With your support, we’re working to make the internet more open, accessible, and better for everyone.",
"primary_button": {
"label": "Start browsing",
"action": {
"navigate": true
}
}
}
}
]
```
### Example about:welcome screens
### Browser View
### Responsive View
|
