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Firefox slow on speedtest

  • 5 replies
  • 0 have this problem
  • 2 views
  • Last reply by MarkRH

sotackd
sotackd
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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.
Attached screenshots

All Replies (5)

TyDraniu
TyDraniu
  • Top 25 Contributor
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Can you install the UserAgent Switcher and test it again with Chrome UA set for that website? Thanks.

sotackd
sotackd Question owner
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Hi,

UserAgent Switcher didn't make a difference.

Thanks.

TyDraniu
TyDraniu
  • Top 25 Contributor
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This issue has been reported previously, but devs can't spot a significant difference.

See bug 1636904.

sotackd
sotackd Question owner
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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

MarkRH
MarkRH
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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.