>In Firefox, use about:config to change the following: Don't those settings have any adverse effect on any web services you use, such as say Gmail or any finan

>In Firefox, use about:config to change the following: Don't those settings have any adverse effect on any web services you use, such as say Gmail or any finance-related site you use, such as say Amazon? Everything works the same as before (except for now not getting ads and wasting bandwidth)? Pretty good if so. Not familiar with this area, hence asking.