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Firefox doesn't load some speed test sites

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cork1958    1,717
Posted (edited)

I have a few speed test sites in my bookmarks that a while ago simply won't load in Firefox. Only extension I use is ublock origin. Actually, no browser that uses the same engine as Firefox will load the sites, but browsers based on Chrome's engine will. Any and all browsers I use are set up the same as far as ublock is concerned. Have tried disabling ublock in Firefox and changed the privacy settings from strict to standard and nothing, but sites still won't load.

 

Here are a few of those test sites:

https://www.spectrum.com/internet/speed-test

http://speedtest.it.umich.edu/

http://speedtest.frontier.com/speedtest.html

https://www.speakeasy.net/speedtest/

 

As you can see, there are a couple secure and a couple non secure sites listed, so that's not the issue either. Anyone else have this issue or have a suggestion as to why those sites won't load the actual test? That second link is the only site that doesn't load anything at all, but the other sites do load the page, just not the test. FWIW, doesn't matter if I use Windows or Linux either.

 

Thank you

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+jnelsoninjax    12,183

Strange, but I successfully visited and ran the test on all 4 of the links, and I'm running Firefox 66.0.2 with uBlock installed, and not whitelisting those sites...

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cork1958    1,717
18 minutes ago, exotoxic said:

Make sure you can access http://speedtestcustom.com

I guess I have to ask why as I can run test from speedtest.net with no problem?

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cork1958    1,717
Posted (edited)
59 minutes ago, jnelsoninjax said:

Strange, but I successfully visited and ran the test on all 4 of the links, and I'm running Firefox 66.0.2 with uBlock installed, and not whitelisting those sites...

My Linux setup is still on Firefox 66.0.1 but my Windows have 66.0.2 and those sites don't work on any of 8 machines! 3 Windows 10, 1 Windows 7 and 4 Linux setups! No matter what I've done, there are still a no go. Do you have an account at http://speedtestcustom.com/

Edited by cork1958

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exotoxic    684
26 minutes ago, cork1958 said:

I guess I have to ask why as I can run test from speedtest.net with no problem?

The testers are just iframes with a *.speedtestcustom.com source so if you cannot access/are blocking that domain then it wont work.

 

speedtest.net does not use the same setup.

 

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cork1958    1,717
21 hours ago, exotoxic said:

The testers are just iframes with a *.speedtestcustom.com source so if you cannot access/are blocking that domain then it wont work.

 

speedtest.net does not use the same setup.

 

I can't even click on the "Free Plan Selected" option to register!

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exotoxic    684
3 hours ago, cork1958 said:

I can't even click on the "Free Plan Selected" option to register!

You don't need to register it's just a service all the links you posted use.

 

Check my screenshots, you can see it works when when i allow the speedtestcustom.com domain in NoScript.

 

 

 

allowed.jpg

notallowed.jpg

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Brandon H    3,175

when you say "won't load" is an error page showing instead? If so what does the page state?

 

It's sounding like they're blocked either at router level or perhaps by your ISP directly; I would recommend troubleshooting with your ISP since none of your devices on the network seem to be able to access the sites in question.

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cork1958    1,717
Posted (edited)
1 hour ago, Brandon H said:

when you say "won't load" is an error page showing instead? If so what does the page state?

 

It's sounding like they're blocked either at router level or perhaps by your ISP directly; I would recommend troubleshooting with your ISP since none of your devices on the network seem to be able to access the sites in question.

This is what I see on the Frontier test site. I see everything but the actual test. Only happens in Gecko based browsers.

Screenshot_2019-04-01 Frontier Internet Speed Test Tool.png

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cork1958    1,717

Figured out the problem. I had over tweaked Firefox's setting in about:config by changing the default integer from 2 to 0 here, network.http.sendRefererHeader

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