Why are Speedtest.net results so different on different browsers? Vivaldi shows downloads at 20 Mbps. Firefox shows 40 Mbps.
No significant differences here.
Hi, first test on Firefox was 50% of Vivaldi performance, second test was the same.
Are not very reliable online speed tests, also depend on their respective servers. For reliable test is better to install a desktop application, such as NetWorks https://www.softperfect.com/products/networx/