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

Firefox Theme Resetting Upon Mozilla Account Login

more options

Dear Mozilla Support Team,

I am writing to report an issue I have consistently encountered while using the Firefox browser. Whenever I log into my Mozilla account, the custom theme I have selected for Firefox is reset to the default theme. This necessitates manually re-selecting my preferred theme each time I log in.

This issue is a minor inconvenience, but it disrupts my user experience. I would appreciate it if you could investigate this behavior. I am using the latest version of Firefox on Windows 11 Pro.

Thank you for your time and attention to this matter. I look forward to a resolution.

Sincerely,

Clóvis Lauriano [edited email from public]

Dear Mozilla Support Team, I am writing to report an issue I have consistently encountered while using the Firefox browser. Whenever I log into my Mozilla account, the custom theme I have selected for Firefox is reset to the default theme. This necessitates manually re-selecting my preferred theme each time I log in. This issue is a minor inconvenience, but it disrupts my user experience. I would appreciate it if you could investigate this behavior. I am using the latest version of Firefox on Windows 11 Pro. Thank you for your time and attention to this matter. I look forward to a resolution. Sincerely, Clóvis Lauriano [edited email from public]

Modified by James (doing minimal support dowdays)

All Replies (2)

more options

I have a similar issue.

Everytime I relaunch browser, it defaults from gruvbox to something else, which looks like a catpuccino. Now, I deleted all the custom themes I had install except one, so I really don't get it why it keeps picking up something random.

Win11, v142

Edit: nvm It was conflicting with Firefox Colors addon, so fixed it by disabling said addon

Modified by favnira

Helpful?

more options

So for future reference, you can opt your toolbar theme out of sync by changing a hidden setting. Here's how:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button accepting the risk.

More info on about:config: Configuration Editor for Firefox. The moderators would like us to remind you that changes made through this back door aren't fully supported and aren't guaranteed to continue working in the future.

(2) In the search box in the page, type or paste activeThemeID and pause while the list is filtered. Firefox should show two different preferences.

(3) Double-click the services.sync.prefs.sync.extensions.activeThemeID preference to switch the value from true to false

Now when you update the theme on one installation of Firefox connected to your account, the change shouldn't affect any other installations of Firefox connected to your account.

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.