We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Black text on all sites with dark themes in Firefox 105

more options

As of today, I'm seeing black text on the black background of every site with a dark theme, including Google Search and Github

I'm running Firefox Developer Edition 105.0b8 on macOS 12.5.1. My macOS Appearance is set to Dark

Switching the Website Appearance config setting between Firefox Theme, System Theme, Dark, or even Light does not change the colour of the text

As of today, I'm seeing black text on the black background of every site with a dark theme, including Google Search and Github I'm running Firefox Developer Edition 105.0b8 on macOS 12.5.1. My macOS Appearance is set to Dark Switching the Website Appearance config setting between Firefox Theme, System Theme, Dark, or even Light does not change the colour of the text
Attached screenshots

Chosen solution

The settings didn't change the black text. However, it looks like it's the fault of Mozilla's Facebook Container extension. There already is an issue for this on GitHub (#866).

The fix: either uninstall and then reinstall the extension or use the 'check for updates' button to update the extension to a patched version.

Read this answer in context 👍 1

All Replies (5)

more options

Can confirm, I have the problem since today with Firefox 104.0.1 on Windows 11.

more options

As a starting point, could you check whether these two settings are relevant (on the Settings/Preferences page):

  • "Use system colors" -- this is on by default, so you can test with this on and off
  • "Override the colors specified by the page with your selections above" -- this is set to "Only with High Contrast themes" by default, so could test with that or with "Never"
more options

The settings didn't change the black text. However, it looks like it's the fault of Mozilla's Facebook Container extension. There already is an issue for this on GitHub (#867).

The fix: either uninstall and then reinstall the extension or use the 'check for updates' button to update the extension to a patched version (see GitHub)

more options

Chosen Solution

The settings didn't change the black text. However, it looks like it's the fault of Mozilla's Facebook Container extension. There already is an issue for this on GitHub (#866).

The fix: either uninstall and then reinstall the extension or use the 'check for updates' button to update the extension to a patched version.

more options

Hi Tristan, your later posts contained links to non-Mozilla sites, so they are in the spam moderation queue and should appear after review.

But to steal your thunder:

There is a bug in version 2.3.3 of the Facebook Container extension that causes font color problems. An update (version 2.3.4) was released a few hours ago which should fix it. Firefox should find it on a routine check at some point, but to speed that up:

Open the Add-ons page. Either:

  • Ctrl+Shift+a (Mac: Command+Shift+a)
  • "3-bar" menu button (or Tools menu) > Add-ons
  • type or paste about:addons in the address bar and press Enter/Return

In the right side, below the search box, there is a gear/wheel icon. Click that icon to drop the menu and then click "Check for Updates" to trigger an update.

Alternately, click Facebook Container to show its Details panel, scroll down below the description, and click "Check for Updates".