Hi I am sorry, but not sure what you mean. This has not changed in the recent update.

In Firefox 91+ you can no longer disable Proton via "browser.proton.enabled = false" on the <b>about:config</b> page. Best is to leave browser.proton.enabled at its default value true as this pref still has effect. In Firefox 91+ you will have to use code in userChrome.css to override changes coming with the Proton design. *https://www.userchrome.org/what-is-userchrome-css.html *https://www.userchrome.org/firefox-89-styling-proton-ui.html