One thing that has really been bugging me is that the buttons in webpages are crazily large, breaking the layout of sites that expect buttons to have more normal dimensions. Selection lists, input fields, checkboxes, and radio buttons are also enough larger to be annoying.
In 49.0-4: button: 31x18; padding: 0 6px; border-width: 2px select: 15x17; padding: 0; border-width: 2px 19px 2px 2px input: 180x16; padding: 1px; border-width: 2px checkbox: 13x13; padding: 0; border-width: 3px 3px 3px 4px radio: 13x13; padding: 0; border-width: 3px 3px 0 5px textarea: 156x44; padding: 0 1px; border-width: 2px In 49.0-5: button: 31x18; padding: 0 6px; border-width: 4px 16px select: 15x17; padding: 0; border-width: 5px 24px 5px 9px input: 180x16; padding: 1px; border-width: 0px 8px checkbox: 16x16; padding: 0; border-width: 3px 3px 3px 4px radio: 16x16; padding: 0; border-width: 3px 3px 0 5px textarea: 156x44; padding: 0 1px; border-width: 1px As far as I can tell it's using the default Adwaita:light theme. If this won't be fixed or able to be disabled in Firefox, is there at least a packaged theme available that I could specify with the GTK_THEME environment variable to have normal-sized form widgets instead? Also, in the browser itself, I find that the indicator for submenus inside menus is sometimes (but not always) white-on-white so it's invisible until the menu item is moused over. This happens with the default browser theme.