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Question: New Safari in High Sierra is slow and clunky

I just downloaded High Sierra... Safari seems to struggle to open web pages and I am getting a flickering. Video and audio are not smooth. All other browsers do not have this trouble...ie Chrome, Firefox. Is anyone else having this trouble?

iMac, macOS High Sierra (10.13.1)

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Nov 11, 2017 11:29 AM in response to Disk Utility will not work. In response to Disk Utility will not work.

Then you have a bad installation.


Possible Fixes for High Sierra

You should try each, one at a time, then test to see if the problem is fixed before going on to the next.


Be sure to backup your files before proceeding if possible.


  1. Shutdown the computer, wait 30 seconds, restart the computer.
  2. Resetting your Mac’s PRAM and NVRAM
  3. Reset the System Management Controller (SMC)
  4. Start the computer in Safe Mode, then restart normally. This is slower than a standard startup.
  5. Repair the disk by booting from the Recovery HD. Immediately after the chime hold down the Command and R keys until the Utility Menu appears. Choose Disk Utility and click on the Continue button. Select the indented (usually, Macintosh HD) volume entry from the side list. Click on the First Aid button in the toolbar. Wait for the Done button to appear. Quit Disk Utility and return to the Utility Menu. Restart the computer from the Apple Menu.
  6. Create a New User Account Open Users & Groups preferences. Click on the lock icon and enter your Admin password when prompted. On the left under Current User click on the Add [+] button below Login Options. Setup a new Admin user account. Upon completion log out of your current account then log into the new account. If your problems cease, then consider switching to the new account and transferring your files to it - Transferring files from one User Account to another.
  7. Download and Install 10.13.1 High Sierra Update
  8. Reinstall OS X by booting from the Recovery HD using the Command and R keys. When the Utility Menu appears select Reinstall OS X then click on the Continue button.
  9. Erase and Install OS X Restart the computer. Immediately after the chime hold down the CommandandRkeys until the Apple logo appears. When the Utility Menu appears:
  1. Select Disk Utility from the Utility Menu and click on Continue button.
  2. When Disk Utility loads select the drive (out-dented entry) from the Device list.
  3. Click on the Erase icon in Disk Utility's toolbar. A panel will drop down.
  4. Set the Format type to Mac OS Extended (Journaled.)
  5. Click on the Apply button, then wait for the Done button to activate and click on it.
  6. Quit Disk Utility and return to the Utility Menu.
  7. Select Install OS X and click on the Continue button.

Nov 11, 2017 11:29 AM

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Nov 11, 2017 5:43 PM in response to Disk Utility will not work. In response to Disk Utility will not work.

Safari/Preferences/Advanced - enable the Develop menu, then go there and Empty Caches. Quit/reopen Safari and test. Then try Safari/History/Show History and delete all history items. Quit/reopen Safari and test. You can also try try Safari/Clear History…. The down side is it clears all cookies. Doing this may cause some sites to no longer recognize your computer as one that has visited the web site. Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J. When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder. Select Library/Caches/com.apple.Safari/Cache.db and move it to the trash.


Go to Safari Preferences/Extensions and turn all extensions off. Test. If okay, turn the extensions on one by one until you figure out what extension is causing the problem.


Safari Corruption See post by Linc Davis


Safari Reset


If that doesn't work, try running this program in your normal account , then copy and paste the output in a reply. The program was created by etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read. On the screen with Options, please open Options and check the bottom 2 boxes before running. Click “Share Report” button in the toolbar, select “Copy Report” and then paste into a reply. This will show what is running on your computer. No personal information is shown.

Etrecheck – System Information

Nov 11, 2017 5:43 PM

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Nov 21, 2017 9:33 PM in response to Disk Utility will not work. In response to Disk Utility will not work.

Same thing here but not only on the MBP but in the iMac as well. I blamed the internet connection in the beginning but then I noticed Chrome and Mozilla were doing way better. Safari freezes a lot on most of videos ( YouTube and FB ) and is getting annoying. Also noticed this on iTunes since I have AppleMusic, it takes a lot to play a song and most of the times, don't even continue to play. Spotify runs smoothly.


I don't think is a bad installation, both machines were perfect before the install and the MBP had as a clean installation, brand new SSD, the iMac had it as an update. I did both NVRAM and PRAM memory reset with no fix on the speed or fix on video and music loading. This is getting very annoying since I work on these two in a daily basis. Here's my report from EtreCheck.


EtreCheck version: 3.4.6 (460)

Report generated 2017-11-21 23:19:26

Download EtreCheck from https://etrecheck.com

Runtime: 2:24

Performance: Excellent


Click the [Lookup] links for more information from Apple Support Communities.

Click the [Details] links for more information about that line.


Problem: No problem - just checking


Hardware Information:

MacBook Pro (13-inch, Mid 2012)

[Technical Specifications] - [User Guide] -

MacBook Pro - model: MacBookPro9,2

1 2.9 GHz Intel Core i7 (i7-3520M) CPU: 2-core

16 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

8 GB DDR3 1600 MHz ok

BANK 1/DIMM0

8 GB DDR3 1600 MHz ok

Handoff/Airdrop2: supported

Wireless: en1: 802.11 a/b/g/n

Battery: Health = Normal - Cycle count = 4


Video Information:

Intel HD Graphics 4000 - VRAM: 1536 MB

Color LCD 1280 x 800


Disk Information:

Crucial_CT512MX100SSD1 disk0: (512.11 GB) (Solid State - TRIM: No)

[Show SMART report]

EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

(disk0s2) <not mounted> [APFS Container]: 511.90 GB


HL-DT-ST DVDRW GS31N ()


USB Information:

USB20Bus

hub_device

hub_device

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

USB20Bus

hub_device

Apple Inc. FaceTime HD Camera (Built-in)

USB30Bus


Thunderbolt Information:

Apple Inc. thunderbolt_bus


Virtual disks:

Macintosh SSD (disk1s1 - APFS) / [Startup]: 511.90 GB (421.32 GB free)

Physical disk: disk0s2 511.90 GB (421.32 GB free)

(disk1s2) <not mounted> [Preboot]: 511.90 GB

Physical disk: disk0s2 511.90 GB

(disk1s3) <not mounted> [Recovery]: 511.90 GB

Physical disk: disk0s2 511.90 GB

(disk1s4) /private/var/vm [VM]: 511.90 GB

Physical disk: disk0s2 511.90 GB


System Software:

macOS High Sierra 10.13.1 (17B48) - Time since boot: less than an hour


Gatekeeper:

Mac App Store and identified developers


Kernel Extensions:

/Applications/VMware Fusion.app

[not loaded] com.vmware.kext.vmci (10.0.0) [Lookup]

[not loaded] com.vmware.kext.vmioplug.17.1.2 (10.0.0) [Lookup]

[not loaded] com.vmware.kext.vmnet (10.0.0) [Lookup]

[not loaded] com.vmware.kext.vmx86 (10.0.0) [Lookup]


System Launch Agents:

[not loaded] 8 Apple tasks

[loaded] 176 Apple tasks

[running] 104 Apple tasks


System Launch Daemons:

[not loaded] 37 Apple tasks

[loaded] 185 Apple tasks

[running] 107 Apple tasks


Launch Agents:

[not loaded] com.adobe.AAM.Updater-1.0.plist (Adobe Systems, Inc. - installed 2017-11-04) [Lookup]

[not loaded] com.teamviewer.teamviewer.plist (TeamViewer GmbH - installed 2017-11-03) [Lookup]

[not loaded] com.teamviewer.teamviewer_desktop.plist (TeamViewer GmbH - installed 2017-08-24) [Lookup]


Launch Daemons:

[loaded] com.adobe.SwitchBoard.plist (? 68cad67 0 - installed 2017-11-04) [Lookup]

[not loaded] com.apple.installer.cleanupinstaller.plist (? 1963bf56 0 - installed 2017-11-13)

[loaded] com.microsoft.office.licensingV2.helper.plist (Microsoft Corporation - installed 2015-08-15) [Lookup]

[loaded] com.teamviewer.Helper.plist (TeamViewer GmbH - installed 2017-08-24) [Lookup]

[not loaded] com.teamviewer.teamviewer_service.plist (TeamViewer GmbH - installed 2017-11-03) [Lookup]


User Launch Agents:

[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-11-13) [Lookup]

[loaded] com.skype.skype.shareagent.plist (Skype Communications S.a.r.l - installed 2017-11-12) [Lookup]

[running] com.spotify.webhelper.plist (Spotify - installed 2017-11-21) [Lookup]


User Login Items:

iTunesHelper Application (Apple, Inc. - installed 2017-11-03)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

SpeechSynthesisServer Application

(/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks /SpeechSynthesis.framework/Versions/A/SpeechSynthesisServer.app)


Internet Plug-ins:

QuickTime Plugin: 7.7.3 (installed 2017-10-25)


3rd Party Preference Panes:

None


Time Machine:

Time Machine not configured!


Top Processes by CPU:

5% com.apple.WebKit.WebContent

4% WindowServer

3% Safari

2% kernel_task

1% hidd


Top Processes by Memory:

988 MB kernel_task

279 MB Spotify Helper

221 MB com.apple.WebKit.WebContent

216 MB com.apple.WebKit.WebContent

205 MB Microsoft Excel


Top Processes by Network Use:

Input Output Process name

78 MB 495 KB Spotify

187 KB 8 KB mDNSResponder

21 KB 29 KB com.apple.WebKit.Networking

17 KB 14 KB apsd

7 KB 2 KB cloudd


Top Processes by Energy Use:

61.72 com.apple.WebKit.WebContent

21.34 WindowServer

17.96 com.apple.WebKit.Networking

5.98 Safari


Virtual Memory Information:

10.09 GB Available RAM

5.76 GB Free RAM

5.91 GB Used RAM

4.33 GB Cached files

0 B Swap Used


Software installs (last 30 days):

Microsoft Office 2016 for Mac: (installed 2017-11-03)

TeamViewer: 12.0.82953 (installed 2017-11-03)

Free Ringtone Maker: 1.7.1 (installed 2017-11-11)


Install information may not be complete.


Diagnostics Events (last 3 days for minor events):

2017-11-21 22:28:26 Microsoft AutoUpdate.app Crash [Open]

2017-11-20 15:11:44 com.apple.WebKit.WebContent High CPU use [Open] [Details]

2017-11-15 17:12:25 Kernel Panic [Open] [Details]

3rd Party Kernel Extensions:

com.vmware.kext.vmnet 0666.50.85

com.vmware.kext.vmx86 0666.50.85

com.vmware.kext.vmci 90.8.1

com.vmware.kext.vmioplug.17.1.2 17.1.2

Nov 21, 2017 9:33 PM

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Question: New Safari in High Sierra is slow and clunky