pxDropdown left padding is available in IE but not in Firefox
Drop-down options do not have left padding in Firefox that are present in Internet Explorer. Refer the figure given below for an example.
Steps to Reproduce
Compare drop-down options in Internet Explorer and Firefox.
This is not a Pega defect, but rather browser inconsistencies with standard markup.
Mozilla development community has published articles describing this inconsistent behavior especially with <SELECT> and <OPTION> elements, which is the standard HTML Pega generates for pxDropdowns.
Refer the Mozilla documents given below.
Set the <OPTION> padding in CSS explicitly if required.
/* Tune this to your needs (match your select padding) */