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Why does my Macbook fan come on watching videos with Firefox but not Chrome?

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The main reason I still use Chrome is to keep my laptop fan from turning on when I watch YouTube videos. This then leads me to use Chrome for other reasons as well. I would prefer to use Firefox, but I don't like it when my fan turns on. My Firefox is up to date according to me preferences page.

I have tried unchecking "Use hardware acceleration when possible" and restarting Firefox, but the fan still comes on.

What's the solution?

The main reason I still use Chrome is to keep my laptop fan from turning on when I watch YouTube videos. This then leads me to use Chrome for other reasons as well. I would prefer to use Firefox, but I don't like it when my fan turns on. My Firefox is up to date according to me preferences page. I have tried unchecking "Use hardware acceleration when possible" and restarting Firefox, but the fan still comes on. What's the solution?

Additional System Details

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FredMcD
  • Top 10 Contributor
4225 solutions 58977 answers

The fan keeps the circuit board from burning up. That means CPU.

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?


https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

The fan keeps the circuit board from burning up. That means CPU. [https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode] {web link} by holding down the '''<Shift> ''(Mac=Options)''''' key, and then starting Firefox. A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Is the problem still there? https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

Question owner

The fan is still coming on. If Firefox uses too much CPU how do I change it?

Is this different from using too much RAM? I thought Chrome used more CPU (or whatever uses up GBs/storage), that's why Firefox was recommended.

The fan is still coming on. If Firefox uses too much CPU how do I change it? Is this different from using too much RAM? I thought Chrome used more CPU (or whatever uses up GBs/storage), that's why Firefox was recommended.
FredMcD
  • Top 10 Contributor
4225 solutions 58977 answers

Let's start with the fan first. In most computers today the fan is controlled by a thermostat inside the case. Too hot = fan on. Okay = fan off.

Sometimes, there is a problem with the fan itself. Sometimes the air vents get clogged. Get a can of compressed air and blow out the vents.

Place your hand over the exhaust vent. Is it blowing out okay?


Geisshardt63 said

The main reason I still use Chrome is to keep my laptop fan from turning on when I watch YouTube videos

Is this the only time the fan gets a workout?

Let's start with the fan first. In most computers today the fan is controlled by a thermostat inside the case. Too hot = fan on. Okay = fan off. Sometimes, there is a problem with the fan itself. Sometimes the air vents get clogged. Get a can of compressed air and blow out the vents. Place your hand over the exhaust vent. Is it blowing out okay? ----------- ''Geisshardt63 [[#question-1220018|said]]'' <blockquote> The main reason I still use Chrome is to keep my laptop fan from turning on when I watch YouTube videos </blockquote> Is this the only time the fan gets a workout?