1763355 - Active tab contrast too low in dark mode

Status: RESOLVED DUPLICATE of bug 1757506

(Core :: Widget: Gtk, defect)

Description

[Will]

Attachment: Screenshot_20220406_192158.png

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:99.0) Gecko/20100101 Firefox/99.0

Steps to reproduce:

Open firefox with the UI in dark mode (I'm on Arch Linux + KDE, other desktops work too). Open a few tabs. Observe that the active tab is extremely difficult to pick out of a lineup.

Actual results:

Starting in Firefox 99.0, the active tab has almost zero contrast to surrounding inactive tabs when in dark mode. I don't see any theme/UI changes listed in the release notes, and the contrast is so low that I can only assume it's an accident.

Expected results:

The contrast should be enough to tell active and inactive tabs apart.

Comment 1

[Will]

I've just checked, the problem does NOT happen in macOS dark mode - the active tab there retains the much lighter shade of grey from version 98.

Comment 3

[Will]

For the original report, Arch Linux and Firefox 99. I also checked macOS 12.3.1 and Firefox 99 when I made the comment.

Comment 6

[Will]

I've already specified that I used Arch Linux and attached a screenshot. There are no log files to include since it's a visual issue. Arch Linux does not have version numbers, it's a rolling release.

Comment 8

[Will]

That information was included in the initial report.

Comment 10

[Will]

(After checking out this profile, I've concluded it's a troll and I'm auto-deleting emails from it. )

Comment 13

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Comment 15

[:Gijs (he/him)]

(In reply to Will from comment #10)

(After checking out this profile, I've concluded it's a troll and I'm auto-deleting emails from it. )

Yes, I think that assessment is correct - I've disabled the user's account and hidden most of the comments. Apologies for the waste of your time.

It sounds like this is a regression as compared with Firefox 98 for you, could you confirm this?

Emilio, do you have any idea what would have caused this?

Comment 16

[Will]

Yes, I think that assessment is correct - I've disabled the user's account and hidden most of the comments. Apologies for the waste of your time.

Thanks - no worries, it happens.

It sounds like this is a regression as compared with Firefox 98 for you, could you confirm this?

Yes, that's right.

Comment 17

[Emilio Cobos Álvarez [:emilio]]

Yes this was caused by bug 1741293. There's a patch waiting for review for a month in bug 1757506...

Comment 18

[Will]

Great, thanks for quick triage + response. I really appreciate it.

Comment 19

[Emilio Cobos Álvarez [:emilio]]

Will, fyi, this should be fixed in Nightly and Beta, so FF 100 should have the fix.

Comment 20

[Will]

Thanks Emilio!