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Fix: This webpage is using significant memory or energy Safari Browser Error on Mac



Seeing an error message on our computers can sometimes spike up our anxiety level. In most cases, we instantly believe that there is something significantly wrong with the computer that may lead to further problems and complications. In the case of a Mac device, you may encounter the error message on your Safari browser, which says, “This webpage was reloaded because it was using significant memory” or “This webpage is using significant energy. Closing it may improve the responsiveness of your Mac.”


Many MacBook and iMac users panicked upon seeing the error notification message as it implies that there is a hugely vital issue going on in their Safari browser. But, such a problem only points out a warning from your browser that websites are using a great amount of memory or energy resources. It may not always result in serious damage or more problems in your Mac laptop or desktop computer.

Safari warns users of excessive memory or energy usage issues when a website starts using more of the system’s RAM. In turn, it uses up more energy. While your Safari browser on macOS manages your system’s memory to optimize your online browsing experience, some websites may be using too much of it, causing your system to gradually slow down that might even cause a crash.

In the case of significant energy error, your Safari browser notifies you that the website you are on uses more of your Mac’s battery life.

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How to Troubleshoot & Fix “This webpage is using significant memory or energy” Error Message on Safari Browser for Mac

Fortunately, you can easily fix and remove or turn off the error message banner on your Safari browser on macOS with a few simple solutions. Follow each method below one at a time and check if it resolves the browser notification issue or not. You can also use these methods for affected M1 Mac devices.

Method #1 – Clear the Cache and Cookies on your Safari Browser

Screenshot credit: Windows Dispatch
  • On your Safari browser, click the Safari name on the top of the screen.
  • Go to Preferences.
  • Select Advanced.
  • Click Show Develop.
  • Go to the Develop menu.
  • Select Empty Caches.

Method #2 – Disable Safari Extensions Temporarily

Some extensions on your Safari browser may be the cause of the error message. You may try to disable several of your browser extensions and check if it eliminates the issue.

  • Click Safari on your browser and go to Preferences.
  • Select Extensions.
  • Look for the extension that you think might be using up your memory or energy. Disable it.

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Method #3 – Force Quit your Safari Browser

Screenshot credit: Windows Dispatch
  • On the top left corner, click the Apple logo.
  • Select Force Quit.
  • Choose Safari.
  • Click Force Quit again.
  • Wait for a few moments.
  • Relaunch your Safari browser.

Method #4 – Turn Off Internet Plugins

  • Navigate to Preferences on your Safari browser.
  • Select Advanced.
  • Look for Internet Plugins and uncheck the box.

Method #5 – Update your Safari Browser

  • To update your Safari browser, you also need to upgrade your macOS.
  • Click the Apple logo on the upper left corner of your Mac.
  • Select System Preferences.
  • Go to Software Update.
  • Click Update Now or Upgrade Now.

Which of the methods above helped you resolve and fix the Safari error on excessive usage of energy and RAM resource issue? We would love to know what works, so please write down your comments below.

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