1901272 - Add a configuration option to make about:welcome full screen

Status: VERIFIED FIXED

(Firefox :: Messaging System, enhancement, P1)

Description

[Meg Viar [:mviar]]

We want to support future experimentation by adding a configuration option to show about:welcome as full screen, instead of the current modal format.

Currently, we support split and center screen positions. We also have an additional attribute for the split layout, reverse-split (see here). One approach would be to add a similar attribute like full-screen-split.

Comment 1

[Jason Prickett]

Attachment: Bug 1901272 - Add fullscreen toggle and styles to about:welcome r?mviar

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5496ddc65516
Add fullscreen toggle and styles to about:welcome r=mviar,omc-reviewers,frontend-codestyle-reviewers

Comment 3

[Cosmin Sabou [:CosminS]]

https://hg.mozilla.org/mozilla-central/rev/5496ddc65516

Comment 4

[Marius Coman [:mcoman], Ecosystem QA]

I have verified this enhancement and can confirm that after adding the gist from here to the browser.aboutwelcome.screens pref the content of the "about:welcome" page is displayed as a full screen instead of the modal format.

Verified using the latest Firefox Beta 129.0b5 (Build ID: 20240717091810) and the latest Firefox Nightly 130.0a1 (Build ID: 20240718092755) installed on Windows 10 x64, macOS 14.1.1, and Ubuntu 22.04 x64.