Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox slow on speedtest

  • 5 balasan
  • 0 ada masalah ini
  • 2 paparan
  • Balasan terakhir oleh MarkRH

more options

Firefox doesn't run Speedtest program at same speed as Chrome. I noticed that recently Speedtest is not reporting accurately when run on Firefox but reports correctly on Chrome or Edge or my phone for that matter. I have tried in troubleshooting mode and have refreshed Firefox. I have a 200 Mbps connection. I am connected to my router via Intel(R) Wi-Fi 6E AX210 160MHz.

Please see attached screen shots.

Firefox doesn't run Speedtest program at same speed as Chrome. I noticed that recently Speedtest is not reporting accurately when run on Firefox but reports correctly on Chrome or Edge or my phone for that matter. I have tried in troubleshooting mode and have refreshed Firefox. I have a 200 Mbps connection. I am connected to my router via Intel(R) Wi-Fi 6E AX210 160MHz. Please see attached screen shots.
Lampirkan skrinsyot

All Replies (5)

more options

Can you install the UserAgent Switcher and test it again with Chrome UA set for that website? Thanks.

more options

Hi,

UserAgent Switcher didn't make a difference.

Thanks.

more options

This issue has been reported previously, but devs can't spot a significant difference.

See bug 1636904.

more options

I've used Firefox for years and never really had an issue with this until after the 109 update on the 18th of January. That's at least when I noticed it. When I cleared my cache and cookies during reset of Firefox I lost my history from Ookla but I do remember checking before the new year and it was fine.

Thanks, D

more options

I have no issue here with Firefox 109. It maxes out my download and upload speeds. Granted, my current ISP is only 20 Mbps down and 2 Mbps up so hard for me to test with higher speeds.