1607944 - About Firefox window strange size

Status: VERIFIED DUPLICATE of bug 1607557

(Firefox :: General, defect)

Description

[Patrick (he/him)]

Attachment: AboutFF.JPG

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0

Steps to reproduce:

I can reproduce by following these steps:

1. Start Firefox

2. Open Help menu

3. Click About Nightly

Actual results:

About Firefox Nightly window is very large with strange text wrapping and line spacing

Expected results:

About Firefox Nightly window is normal size with normal text wrapping and normal line spacing

Comment 1

[Patrick (he/him)]

This bug appears to be a regression, last good build 2020-01-07, first broken build 2020-01-08. From mozregression:
2020-01-09T09:14:56: INFO : Narrowed inbound regression window from [f6a1b2dc, 23d86286] (4 builds) to [29584a35, 23d86286] (2 builds) (~1 steps left)
2020-01-09T09:14:56: DEBUG : Starting merge handling...
2020-01-09T09:14:56: DEBUG : Using url: https://hg.mozilla.org/integration/autoland/json-pushes?changeset=23d862866f3a55716b89230e5440213ae56df178&full=1
2020-01-09T09:14:57: DEBUG : Found commit message:
Bug 1606130 - Make display: -moz-box more similar to other display types for block layout. r=jfkthame,surkov

It is unexpected (see bug) that a -moz-box is affected by baseline alignment.
Make -moz-box be block-outside, and -moz-inline-box be inline-outside, instead
of the bespoke thing we have now.

This is more similar to everything else, and fixes the bug.

Differential Revision: https://phabricator.services.mozilla.com/D58726

Comment 2

[Emilio Cobos Álvarez (:emilio)]

Fixed already, but thanks for the report!