Why is Internet Explorer always faster than FireFox?
I have tested both Internet Explorer and FireFox many times to the same server (using the Xfinity speed test) and Internet Explorer is always 20 to 30 MBPS faster. How can I speed up FireFox?
Opaite Mbohovái (1)
It is possible that other software if restricting Firefox and causes this issue.
Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.