Mozilla ok;s Extensions submitted by the Developers to be used with Firefox. They ok them only and give the Developer a web page to distribute their Extension from. This in no means that Firefox Support does the Developers Support when their page https://addons.mozilla.org/en-US/firefox/addon/video-downloadhelper/ has a Support link and a contact Link. And in this case Themes. There are a few below. https://addons.mozilla.org/en-US/firefox/themes/seasonal/

You can make your own. With info : https://www.howtogeek.com/203803/HOW-TO-CREATE-YOUR-OWN-FIREFOX-BROWSER-THEME/

Please let us know if this solved your issue or if need further assistance.

thank you for your answer . thank i just wanted to know if the makers from firefox made a firefox theme. thank you for your help. this question is solved for me :)

You can look the Add-ons website for a theme that you like.

• https://addons.mozilla.org/en-US/firefox/search/?q=christmas

cor-el said

You can look the Add-ons website for a theme that you like.

• https://addons.mozilla.org/en-US/firefox/search/?q=christmas

thank you verry much for your reply!

Robat said

cor-el said

You can look the Add-ons website for a theme that you like.

• https://addons.mozilla.org/en-US/firefox/search/?q=christmas

thank you verry much for your reply!

thank you verry much for your help i mean greetings

Robat said

thank you for your answer . thank i just wanted to know if the makers from firefox made a firefox theme. thank you for your help. this question is solved for me :)

The vast majority of Extensions and Themes whether complete or image backgrounds at addons.mozilla.org are made by a third-party author or company.

The Mozilla account there does have a number image themes but are mostly flags or such. https://addons.mozilla.org/firefox/user/mozilla/