Speedtest.net results using Google Chrome are consistently 700+ Mbps, but no matter what I do I can’t get Firefox to go over 300 Mbps (connecting to the same server).

I get the same results with Waterfox and Pale Moon and get the same results when I run Firefox in Safe Mode. Does anyone know why this is happening?

I don't have a Firewall or Anti-Virus software enabled.

  • What other factors have you controlled for (e.g., tested all in safe mode)? – fixer1234 Dec 14 '18 at 11:05
  • My experience with FireFox is really bad related to the overall performance. But in this specific case... What plugins do you have installed? – Fis Dec 14 '18 at 11:46
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    Looks like no one answered your question. I have same problem, gigabit (fiber) internet, and mozilla is < 300 , chrome > 700. – john Sep 21 '19 at 2:22
  • I have the same problem. Not sure what is causing it. Chrome I can get 950 Mbps. Firefox does not get more than 300 in average. Same results in Pale Moon. Using Windows 7. – Loreno Heer Jan 9 at 1:13

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