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Safari is running extremely slow and lagging.

Safari is running extremely slow and lagging. I've cleared my cache, history and extensions but I cant seem to fix it. I have also run a virus scan. Any help would be appreciated. I am begrudgingly using my backup search engine.

MacBook Pro, OS X Yosemite 10.10.5

Posted on Jan 20, 2016 6:37 AM

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7 replies

Jan 20, 2016 6:53 AM in response to bodonovan76

Try to reset Safari settings:

1.Open Safari

2. Click on Safari menu at the top(to the right from the Apple logo)

3. Select preferences/privacy tab

4. Click on Remove all website data

5. Close Safari.

Delete Safari cache files:

1. Click on finder

2. Look for GO menu at the top

3. click on GO and hold down the option key. This will show user library folder.

4. Click on Library and look for Caches folder

5. In caches folder open com.apple.Safari folder

6. Move to trash Cache.db file.

This should solve the issue. If it will not help try to turn off Safari extentions

1.Open Safari

2. Click on Safari menu at the top(to the right from the Apple logo)

3. Select preferences

4. Find extentions tab

5. Turn off all the extentions

6. Relauch Safari

Jan 20, 2016 4:58 PM in response to bodonovan76

There are many possible causes for problems with web browsing. Below are some simple steps that may either solve the problem or point the way to a solution.

Please back up all data before making any changes.

1. Restart your router and also your broadband device, if they're separate.

2. If you connect to the the router with Wi-Fi, turn Wi-Fi off and then back on.

3. If you connect with Wi-Fi and you can also connect with Ethernet, do that and turn off Wi-Fi.

4. Take the steps recommended in this support article.

5. If the Downloads button (with the icon of a downward-pointing arrow) is showing in the toolbar, click it and then click Clear in the box that appears. The download history will be removed.

6. In the Security tab of the preferences window, uncheck the box marked

Warn when visiting a fraudulent website

if it's checked.

7. If you're running OS X 10.10 or later, select the Search tab. Uncheck the box marked

Enable Quick Website Search

if it's checked.

8. If you're running OS X 10.9 or later, select the Advanced tab and uncheck the box marked

Stop plug-ins to save power

Quit and relaunch the browser.

9. Select the Security tab and uncheck the box marked

Allow WebGL

if it's checked. If it's not checked, check it.

10. If you're running OS X 10.10 or later, open the General pane in System Preferences and uncheck the box marked

Allow Handoff between this Mac and your iCloud devices

if it's checked.

11. Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”

While logged in as Guest, you won’t have access to any of your documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.

Test while logged in as Guest.

After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.

*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.

12. Are any other web browsers installed, and are they the same? What about other Internet applications, such as iTunes and the App Store?

13. If other browsers and Internet applications are also affected, follow these instructions and test.

14. Open the iCloud preference pane and uncheck the boxes marked Safari and Photos, if they're checked.

15. Are there any other devices on the same network that can browse the Web, and if so, are they affected?

16. If you can, test Safari on another network.

17. If you know that you've modified the hosts file to block access to certain servers, undo that modification.

18. Start up in Recovery mode. In the OS X Utilities screen, select Get Help Online. A clean copy of Safari will launch. No plugins, such as Flash, will be available. While in Recovery, you'll have no access to your saved bookmarks or passwords, so make a note of those before you begin, if they're needed for the test.

After testing, restart as usual.

Feb 2, 2016 8:37 PM in response to bodonovan76

I have the same problem. I noticed that if I use other web browsers like firefox, the internet is smooth and working normally. With Safari, since around mid January 2016, has been quite slow and sometimes fails to even load pages altogether. Hopefully apple fixes this issue in the next update


I've also tried the solutions suggested by thunderzzz, and unfortunately has not worked.

Safari is running extremely slow and lagging.

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