![Firefox logo](https://assets-prod.sumo.prod.webservices.mozgcp.net/media/uploads/products/2020-04-14-08-36-13-8dda6f.png)
Broadband Speed
while checking a Broadband speed error Broad band speed dropped from 140mbps to 7mbps I eventually realised it was only on one of my devices And only on Firefox. I cleared the winsock to try to stop throttling, speed went up a bit to 20mbps
I assume this is some sort of hack. I did notice an advert coming up when on Yourube saying You are now using a ??? browsec browser
Strangely Microsoft Edge works fine & full speed.
Opaite Mbohovái (1)
WiFi or Lan? Did you try Firefox in Safe Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#search Who are you using for DNS? Check this out. https://www.grc.com/dns/benchmark.htm