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!

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

Firefox causes 100% CPU usage when opening couple tabs at the same time!!!

  • 21 majibu
  • 1 ana tatizo hili
  • 17 views
  • Last reply by empleat

more options

I Am on desktop:

i5 9600KF (high performance mode) 16GB 3200mhz ram NVME... Windows 10 Pro x64 Firefox last stable

When I open Firefox tabs aren't loaded all at the same time, but they are suspended. So after that: when I switch between 6 tabs quickly - they start to open at the same time. And CPU usage skyrockets to 100% LOL! Given I Am on high end PC - this is joke! I was using chrome and had hundreds of tabs and Chrome doesn't even suspend them by default. They open all at the same time I think!

So there is something wrong! I tried troubleshooting mode and it was the same problem!

Thanks for help!

I Am on desktop: i5 9600KF (high performance mode) 16GB 3200mhz ram NVME... Windows 10 Pro x64 Firefox last stable When I open Firefox tabs aren't loaded all at the same time, but they are suspended. So after that: when I switch between 6 tabs quickly - they start to open at the same time. And CPU usage skyrockets to 100% LOL! Given I Am on high end PC - this is joke! I was using chrome and had hundreds of tabs and Chrome doesn't even suspend them by default. They open all at the same time I think! So there is something wrong! I tried troubleshooting mode and it was the same problem! Thanks for help!

All Replies (1)

more options
My apologies for attempting to help. It won't happen any more. Have a great day and good luck.

LOL you are crazy. I merely said that is not problem. OK I will lie and talk to you next hour about imaginary problem. What Am I supposed to say???

Today people are so sensitive, we are just talking facts... I don't understand what is going oN?

Modified by empleat

  1. 1
  2. 2