Breakpoints! The easiest way in Fiddler for Windows to manage breakpoints is to use the AutoResponders to do a *bpu or *bpafter action - per https://www.telerik.com/blogs/breakpoints-in-fiddler. I don't care if it's done via AutoResponders but a powerful breakpointing mechanism is a must for debugging / intercepting & modifying sessions.

Thank you guys for your input. HTTPS is already in the works and will be shipped pretty soon. Please keep this feedback coming!

@Matt note taken on AutoResponders. Since you are a Mac user, what else you would find valuable?

Totally agree, I unfortunately can't really use Fiddler Everywhere without HTTPS. Pretty much every network call we make in the product uses SSL these days and our company uses only Mac, so there are very few options for HTTP debuggers and all of them are inferior to Fiddler on Windows. I'm really excited to see what the Fiddler team can develop, features like AutoResponders should really impress OSX users that are used to paying $30 for a lower quality tool.

HTTPS is the most important thing for me!