Firefox 135 broke something in the space icons in toolbar button

In my_userChrome.css I use this for reduce space between icon

:root {
--toolbarbutton-inner-padding: 2px !important;
--toolbarbutton-outer-padding: 2px !important;
}

134 spacing


135 spacing


I don't know if it is still current, and if there is already a solution, but in case I point it up.

😊

Reproduce the toolbar spacing from the my_userChrome.css snippet in Firefox 134 and 135, then compare the resulting icon padding. Check whether --toolbarbutton-inner-padding and --toolbarbutton-outer-padding still affect the toolbar in Firefox 135; done means restoring the earlier spacing or documenting the confirmed limitation and workaround.

Written by the indexing model from the issue text.