Firefox is one of the most popular browsers on the market today. According to most users, it is the third most popular browser, behind only Google Chrome and Safari.
Unfortunately, there are always problems when using the Firefox browser. One of them is an error where the proxy server refuses to connect.
The result of this error is that you cannot access the Internet at all. This is often assumed to be an Internet connection problem. However, there are common solutions to this proxy connection problem, if you know where to look.