Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Speedtest.net is "jerky" now on the download meter, but not on IE9; I have donated $100 to the Mozilla Foundation and would like some help please

  • 1 reply
  • 4 have this problem
  • 5 views
  • Last reply by philipp

Allan2013
Allan2013
more options

If people are familiar with speedtest.net, there is an analogue-like "speedometer" which should move relatively smoothly during both the download and upload tests. For several years it always did; now the download test does not. The needle starts and stops in fits/jerks. It runs properly in IE9 though. Not sure when this peculiarity began; possibly with Firefox 17. Any thoughts? Many thanks.

If people are familiar with speedtest.net, there is an analogue-like "speedometer" which should move relatively smoothly during both the download and upload tests. For several years it always did; now the download test does not. The needle starts and stops in fits/jerks. It runs properly in IE9 though. Not sure when this peculiarity began; possibly with Firefox 17. Any thoughts? Many thanks.

All Replies (1)

philipp
philipp
  • Moderator
more options

hello allen, speedtest uses flash for speed measurements & adobe has introduced a special protected mode for its flash plugin only for firefox, which might cause slowdowns (so you might not observe it on IE or other browsers).

if there's a possibility to whitelist certain processes in your av-program from sandboxing/deep-scanning/etc. please add firefox.exe, plugin-container.exe & FlashPlayerPlugin_11*.exe.

alternatively you can also try disabling the protected mode for adobe flash or downgrade to flash 10.3 (it is still supported by adobe) & see if this is making a difference...