We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

ابحث في الدعم

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.

Firefox is brutally slow on speedtest.net

  • 2 (ردّان اثنان)
  • 1 has this problem
  • 1 view
  • آخر ردّ كتبه cor-el

user323844975844107516627690814986091018347
user323844975844107516627690814986091018347
more options

Hello,

When using Firefox, my network speeds are brutally slow (~35 Mbps), while Edge is (~300 Mbps, which is my service speed). I am hardwired through my router, but it is the same wired or wireless.

I have literally tried every single step through Firefox's troubleshooting and have even completed what I thought to be an entire uninstall and deletion of every single Firefox file on my laptop. Upon uninstall and deleting of EVERYTHING, I reinstalled only to be greeted with "Hey, it looks like you reinstalled Firefox, want to refresh everything?". I did (another) refresh and still, same speeds.

Is there a way to 100% remove Firefox and reinstall? I want my laptop/Firefox to treat each other as never have met, in hopes that I can install and get the speeds I should be getting.

Interesting note, Firefox for Android gets ~300 Mbps no problem on my phone.

Thanks in advance!

Hello, When using Firefox, my network speeds are brutally slow (~35 Mbps), while Edge is (~300 Mbps, which is my service speed). I am hardwired through my router, but it is the same wired or wireless. I have literally tried every single step through Firefox's troubleshooting and have even completed what I thought to be an entire uninstall and deletion of every single Firefox file on my laptop. Upon uninstall and deleting of EVERYTHING, I reinstalled only to be greeted with "Hey, it looks like you reinstalled Firefox, want to refresh everything?". I did (another) refresh and still, same speeds. Is there a way to 100% remove Firefox and reinstall? I want my laptop/Firefox to treat each other as never have met, in hopes that I can install and get the speeds I should be getting. Interesting note, Firefox for Android gets ~300 Mbps no problem on my phone. Thanks in advance!

All Replies (2)

user104147805413306348376805769878442569366
user104147805413306348376805769878442569366
more options

Hi noble.s , Try one of these to clean Firefox: Norton Utilities 16 (Direct Download Link) http://norton.com/nu16 or BC Uninstaller https://www.bcuninstaller.com

After you re-install Firefox, I suggest using: DSL Reports http://www.dslreports.com/speedtest to test your internet connectivity speed.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can create a new profile to test if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

Did you make sure that security software isn't causing this issue?

It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.