Safari and MacBook Pro are slow after website

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Safari and MacBook Pro are slow after website

Using Safari as main browser as always. This morning, one of the websites I navigated to likely installed something on my MacBook Pro 16 inch (2019), Sequoia v. 15.2. All of sudden, everything got slow as heck. Trying to empty cache but instructions on emptying Safari browser cacher seems outdated. Tried the "Advanced" setting, but under "Developer" there is no longer an "Empty Cache" option. Suggestions? If there is a specific cache file under "Library" I can safely delete, that would likely resolve this.

I did the usual "Clear History" & "Manage Website Data" maneuvers too as well as restarting the computer.

Help.

Posted on Nov 18, 2025 5:22 AM

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Answer 1

Nov 18, 2025 9:11 AM in response to K1cup

K1cup wrote:

Using Safari as main browser as always. This morning, one of the websites I navigated to likely installed something on my MacBook Pro 16 inch (2019), Sequoia v. 15.2. All of sudden, everything got slow as heck. Trying to empty cache but instructions on emptying Safari browser cacher seems outdated. Tried the "Advanced" setting, but under "Developer" there is no longer an "Empty Cache" option. Suggestions? If there is a specific cache file under "Library" I can safely delete, that would likely resolve this.

I did the usual "Clear History" & "Manage Website Data" maneuvers too as well as restarting the computer.

Help.

The current Sequoia is macOS 15.7.2 — I would start there...

Keep your Mac up to date - Apple Support

ref: If Safari doesn't open a page or work as expected on Mac

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