I want to use fiddler to monitor api calls made by my browser when it visits some pages.
The technology - Fiddler 4.6x, Chrome 56, Firefox 51, Windo
Firefox has its own certificate store so I assume you just installed the DO_NOT_TRUST... Fiddler root cert there and everything worked. Pretty much you should do the same with Windows certificate store in order for Chrome to work. So make sure you remove all the fiddler certificates you previously generated and regenerate.