TRANSLATION ONLY ------------------------------------- I do not know how to put a picture on the background I do not know where to find in the settings function to put a picture on the background _________________________________________________________________________ Hi, you can also ask your question here : https://mozilla-russia.org There are many places and ways to make a picture as Background. If you are talking about wallpaper for your desktop you find the picture and right click and Set as Desktop background. There are Themes for Firefox : https://addons.mozilla.org/en-US/firefox/themes/ and for New Tab Page : https://addons.mozilla.org/en-US/firefox/addon/new-tab-tools/ You can use CSS to do images : https://www.howtogeek.com/334716/how-to-customize-firefoxs-user-interface-with-userchrome.css/ https://developer.mozilla.org/en-US/docs/Web/CSS/background-image *http://techdows.com/2017/09/classic-theme-restorer-userchrome-css-modify-firefox-57-photon-ui.html *https://github.com/Aris-t2/CustomCSSforFx/issues/1 *https://www.accessfirefox.org/Theme-Font-Size-Changer.php *https://www.userchrome.org/ *https://www.accessfirefox.org/Firefox_Accessibility_Themes.php *https://www.userchrome.org/what-is-userchrome-css.html *http://kb.mozillazine.org/UserChrome.css *https://github.com/axydavid/FirefoxUI/blob/master/README.md *https://github.com/wilfredwee/photon-australis *https://www.reddit.com/r/FirefoxCSS/ Note not all code in one place. If this is not what you are looking for please expand on your issue. Please let us know if this solved your issue or if need further assistance.

Is that about a lightweight theme to style the background of the user interface or about a background picture on a page like the about:newtab page or the home page? *New Tab Tools: https://addons.mozilla.org/firefox/addon/new-tab-tools/