Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

Learn More

Why does Firefox cause much slower up/download speed results using speedtest.net versus Explorer?

  • 3 个回答
  • 1 人有此问题
  • 8 次查看
  • 最后回复者为 cor-el

more options

I pay for 300mps download and 20mps upload speeds from my internet service provider. When I test internet speeds via www.speedtest.net on Explorer, the results are consistently in line with these. When the same speed test is run on Firefox, the results are much much slower on the download (>50mps) and about the same on download (20mps). Why??

Also, I find that Firefox crashes from time to time and is slow to load pages.

I've disabled hardware acceleration, emptied cache and my plug-ins are up to date.

What do I have to do to stop this?! I'd like to continue to use Firefox as my default browser but this is becoming a real challenge.

I pay for 300mps download and 20mps upload speeds from my internet service provider. When I test internet speeds via www.speedtest.net on Explorer, the results are consistently in line with these. When the same speed test is run on Firefox, the results are much much slower on the download (>50mps) and about the same on download (20mps). Why?? Also, I find that Firefox crashes from time to time and is slow to load pages. I've disabled hardware acceleration, emptied cache and my plug-ins are up to date. What do I have to do to stop this?! I'd like to continue to use Firefox as my default browser but this is becoming a real challenge.

所有回复 (3)

more options

hello, when you are using speedtest.net or a similar flash-based site to measure your connection speed, it might be an issue with the protected mode that adobe has introduced for its flash plugin for firefox. some old versions of f-secure or trusteer rapport are known to cause such slowdowns together with flash, or it might be something similar on your system that is interfering (maybe security software that is blocking/sandboxing the container used for the protected mode, etc...).

as a workaround you could try disabling protected mode & see if this makes a difference...

more options

Hi Philipp Thanks for your feedback. I have the latest version of Adobe Flash - adobe 16,0,0,305 as well as the latest version of Firefox and Norton 360.

I checked the link http://forums.adobe.com/thread/1018071#TemporaryWorkaround to disable protected mode but I don't feel comfortable with changing the mms.cfg file.