1789822 - Dark mode broken on element and potentially other websites

Status: VERIFIED FIXED

(Firefox :: General, defect)

Description

[Sylvestre Ledru [:Sylvestre]]

Attachment: image.png

With the most recent version of nightly, the dark mode seems broken on element.

According to https://twitter.com/ptit_fred/status/1567837396225368065, it seems to happen on github and tweetdeck.
See the screenshot

Comment 1

[Sylvestre Ledru [:Sylvestre]]

[Tracking Requested - why for this release]:

Seems that twitch is impacted too

https://twitter.com/NoNameM9/status/1567836454419845120

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

The bug is marked as tracked for firefox106 (nightly). We have limited time to fix this, the soft freeze is in 7 days. However, the bug still isn't assigned.

:yshash, could you please find an assignee for this tracked bug? If you disagree with the tracking decision, please talk with the release managers.

For more information, please visit auto_nag documentation.

Comment 3

[Tom S. (please needinfo tschuster)]

This is caused by the Facebook Container extension: https://github.com/mozilla/contain-facebook/issues/857

Comment 4

[Paragoumba]

I can replicate this bug. I do not have the Facebook Container extension installed and it happens even in troubleshoot mode. GitHub appears with a white theme even if it is configured to follow system theme, I tried both with the Dark theme and the System Theme of Firefox and the system is in dark mode.

Comment 5

[Sylvestre Ledru [:Sylvestre]]

We are working on a few fix now.

Comment 6

[Kelimutu [:kiki]]

This impact Element and Slack too.

Comment 7

[Andrea Marchesini [:baku]]

Version 2.3.3 was buggy and, as a temporary fix, we just released a v2.3.4 as a v2.3.2 repackaged.

Comment 12

[Timea Zsoldos [:tzsoldos], Desktop QA]

I can confirm this issue is fixed, I verified using Firefox 104.0.2, Firefox 105.0 and Firefox 106.0a1 (2022-09-14) Ubuntu 22.04 x64 and Windows 10 x64 the version of Facebook Container extension is v2.3.4. No graphic impact on websites.