Chrome and Edge don't have this problem -- but I don't like surfing with those
 browsers -- and I like Firefox better.

 When I click on a link, I see this message in the lower left:

     "Connecting to ff.kis.v2.scr.kaspersky-labs.com.."

 Of course, "kaspersky-labs.com" no longer exists, (for Americans).  
 Eventually, after several minutes, it times out and the web page I was
 trying to access appears.

 Kaspersky was trying to protect me by checking to see if the website I clicked 
 was a potential criminal enterprise or not.

 I was a former customer of Kaspersky, but the U.S. Govt. has decided that we
 cannot do business with Russian-based enterprises.

 I tried doing an "Remove Programs"-->"Kaspersky" via Microsoft System, 
 Which removed Kaspersky from my system, but not from Firefox.

 I also tried looking at the Firefox extensions, but there was no Kaspersky
 extension.

I need some help with Firefox -- surfing the web has become excruciatingly slow. Chrome and Edge don't have this problem -- but I don't like surfing with those browsers -- and I like Firefox better. When I click on a link, I see this message in the lower left: '''"Connecting to ff.kis.v2.scr.kaspersky-labs.com.."''' Of course, "kaspersky-labs.com" no longer exists, (for Americans). Eventually, after several minutes, it times out and the web page I was trying to access appears. Kaspersky was trying to protect me by checking to see if the website I clicked was a potential criminal enterprise or not. I was a former customer of Kaspersky, but the U.S. Govt. has decided that we cannot do business with Russian-based enterprises. I tried doing an "Remove Programs"-->"Kaspersky" via Microsoft System, Which removed Kaspersky from my system, but not from Firefox. I also tried looking at the Firefox extensions, but there was no Kaspersky extension.