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Why does CPU temperature jump up 15+ degrees when opening a Kickstarter webpage using Firefox. It doesn't happen on other browsers.

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  • 1 has this problem
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  • Last reply by FredMcD

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My CPU sits at just below 30 degrees when idle. It stays at 30 degrees with endless amounts of tabs open on Firefox. However, when I open a page on kickstarter, the temperature rises to 50 degrees and all the fans come onto full. If I close the kickstarter tab, it reverts to normal. I have not seen this happen on any other webpage I visit. When I open the kickstarter page on IE or Chrome, it does not raise the temperature the same way. So in other words, Firefox suddenly has a tremendous load on the CPU when opening kickstarter webpages, but other web browsers don't. Any ideas why or how to prevent it?

CPU: Intel Core i7 6700K @ 4.00GHz. 32 GB of Ram Windows 10 Home 64 bit

My CPU sits at just below 30 degrees when idle. It stays at 30 degrees with endless amounts of tabs open on Firefox. However, when I open a page on kickstarter, the temperature rises to 50 degrees and all the fans come onto full. If I close the kickstarter tab, it reverts to normal. I have not seen this happen on any other webpage I visit. When I open the kickstarter page on IE or Chrome, it does not raise the temperature the same way. So in other words, Firefox suddenly has a tremendous load on the CPU when opening kickstarter webpages, but other web browsers don't. Any ideas why or how to prevent it? CPU: Intel Core i7 6700K @ 4.00GHz. 32 GB of Ram Windows 10 Home 64 bit

All Replies (3)

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Is there anything different about that page when compared to others? For example; players, ads, gifs . . . . . . . . .

Please provide public links (no passwords) that we can check out.


Many site issues can be caused by corrupt cookies or cache.

  • Clear the Cache and
  • Remove Cookies
    Warning ! ! This will log you out of sites you're logged in to.

Type about:preferences<Enter> in the address bar.

  • Cookies; Select Privacy. Under History, select Firefox will Use Custom Settings. Press the button on the right side called Show Cookies. Use the search bar to look for the site. Note; There may be more than one entry. Remove All of them.
  • Cache; Select Advanced > Network. Across from Cached Web Content, Press Clear Now.

If there is still a problem, Start Firefox in Safe Mode {web link} A small dialog should appear. Click Start In Safe Mode (not Refresh). While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe websites. Are there any problems?

Then restart.

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Thanks for the suggestions. I'd already tried a few of them prior to asking here.

Any page from Kickstarter does this, an example page: https://www.kickstarter.com/projects/playtonic/yooka-laylee-a-3d-platformer-rare-vival

I have tried clearing cookies. On task manager. Firefox runs, with for example multiple tabs, youtube videos running etc, with between 0.1 and 1.0% CPU usage. As soon as I open a single Kickstarter tab, it shoots up and remains at around 13% CPU usage, obviously kicking up the temperature.

This is just the same, with or without hardware accelaration. I had already tested it in safe mode and it remains the same usage.

Other web browsers (Chrome/IE) I have tried do not cause this CPU load - just Firefox.

i7 6700K with 32GB Ram. It is a clean build of Windows 10 Home 64 bit.

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I opened the web page. While my CPU did increase, it was otherwise normal.

I called for more help.