An Option to Force sequential session downloading, ie max one session active at a time via menu 'rules'/'performance' - is this currently possible? If so, how could it be implemented? If not, could it be added please? This would be very useful to me for both the examining/optimising of the download order of a sites scripts and other resources, as well as for allowing all sessions to complete without stalling on low bandwidth/unreliable connections, like mine. Currently an incomplete stalled session download (ie with a green download icon) will sit there indefinitltely, without ever timing-out, without any error, and never retrying. A retry/continue downloading of stalled sessions [x number of times] Option would be very helpful for this, as well as being handy for low bandwidth/unreliable connections, as mine sadly is. <tiny violins playing...> While this isn't really Fiddlers fault, just one example is this 1+MB file which almost always fails to complete on my network connection: http://crl.comodoca.com/COMODORSADomainValidationSecureServerCA.crl The same downloads stalling problem also applies to sites with many large .JS, .CSS & large image files loading simultaneously, for example. Using Fiddlers Autoresponder *Delay:xxxx doesn't seem to help much unfortunately. Limiting TCP connections both per server & globally via registry mods seem to be getting ignored in my Windows 10 Home. If anyone knows of any methods to accomplish this it is appreciated. Thankyou. PS: I love Fiddler :)