User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0.1) Gecko/20100101 Firefox/9.0.1 Build ID: 20111220165912 Steps to reproduce: I am attempting to access my router at home using an HTTPS address such as https://192.168.x.x Actual results: I received an error saying the connection has been reset. Expected results: I should receive an authentication prompt for my router. If I install any version of Firefox 9.1 or older, I receive the authentication prompt.

Please try this: close Firefox, open a commandline prompt (windows: start/run/cmd), use the command "set NSS_SSL_CBC_RANDOM_IV=0" (without the quotes), change to the firefox directory from within this commandline prompt and start Firefox -> "cd \Program Files\Mozilla Firefox" , "firefox.exe". Now test from again with this opened Firefox. It's bug 702111 if it works and the router must be fixed.

This fixed my error, I will read the bug report you referenced in greater detail. Thanks!

James, what brand, model, firmware version of router do you have?