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Firefox 78.0.2 64-bit showing signficantly speeds accessing sites vs. other browsers

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  • Last reply by TyDraniu

rinderbitzen
rinderbitzen
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Hello. I'm using Firefox 78.0.2 on a 64-bit PC. I have Cox an an ISP, with a fiber install for 500 down/up. When I use speedtest.net and Fast.com, I only see speeds of 40 down, .8 up; very slow. I've also monitored the traffic up/down on my router, and Firefox seems to be acting like it's limiting through-put to speeds not even close to what is being offered by the ISP. When I use speedtest.net or Fast.com on Edge, Chrome, or other browsers, I see speeds consistently over 400 Mbps down/up. Can anyone think of reasons why I can't get these same results on Firefox which has been my preferred browser? Thanks! Bob

Additional info: I've pursued a fresh install of Firefox, with no change. Proxy setting uses system settings (same as other browsers on the PC).

Hello. I'm using Firefox 78.0.2 on a 64-bit PC. I have Cox an an ISP, with a fiber install for 500 down/up. When I use speedtest.net and Fast.com, I only see speeds of 40 down, .8 up; very slow. I've also monitored the traffic up/down on my router, and Firefox seems to be acting like it's limiting through-put to speeds not even close to what is being offered by the ISP. When I use speedtest.net or Fast.com on Edge, Chrome, or other browsers, I see speeds consistently over 400 Mbps down/up. Can anyone think of reasons why I can't get these same results on Firefox which has been my preferred browser? Thanks! Bob Additional info: I've pursued a fresh install of Firefox, with no change. Proxy setting uses system settings (same as other browsers on the PC).

All Replies (1)

TyDraniu
TyDraniu
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Please read this bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1636904