com.apple.WebKit.WebContent error on Safari, AppStore and Mail

Hello Dominic,

I've also been having similar issues. First the "web content quits" were in general with random pages and only happened every once in a while. Now, it specifically seems to only happen with my Yahoo mail, yahoo homepage or reading articles from said homepage., and not with any other pages, etc. They can happen again within seconds after reloading too. Even EtreCheck kept quitting unexpectedly within about a minute so I had work fast. Not sure if thats related.

My EtreCheck report is pasted below.

Please let me know if you see an obvious issue and anything that I may be able to do to fix it. I've rebooted, emptied caches and cleared history and cookies. I haven't been able to find the "Library Caches" from the 'Go' menu in Finder. Besides that last, the other thing I haven't tried is enabling guest and signing in to check, followed by a reboot - those last two are the only other help options I've found in these forums.

Thank you!!

This is it:

EtreCheck version: 3.4 (420)

Report generated 2017-06-29 17:20:28

Download EtreCheck from https://etrecheck.com

Runtime: 2:58

Performance: Excellent

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

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

Click the [Clean up] link to delete unused files.

Problem: Apps are crashing

Description:

Safari webkit errors

Hardware Information:ⓘ

MacBook Pro (13-inch, Early 2011)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro8,1

1 2.3 GHz Intel Core i5 (i5-2415M) CPU: 2-core

8 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1333 MHz ok

BANK 1/DIMM0

4 GB DDR3 1333 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

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

Battery: Health = Normal - Cycle count = 467

Video Information:ⓘ

Intel HD Graphics 3000 - VRAM: 512 MB

Color LCD 1280 x 800

Disk Information:ⓘ

Hitachi HTS545032B9A302 disk0: (320.07 GB) (Rotational)

[Show SMART report]

(disk0s1) <not mounted> [EFI]: 210 MB

Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 319.21 GB (38.45 GB free)

(disk0s3) <not mounted> [Recovery]: 650 MB

MATSHITADVD-R UJ-8A8 ()

USB Information:ⓘ

EHCI Root Hub Simulation

hub_device

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Inc. BRCM2070 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

EHCI Root Hub Simulation

hub_device

Apple Computer, Inc. IR Receiver

Thunderbolt Information:ⓘ

Apple Inc. thunderbolt_bus

System Software:ⓘ

OS X Mavericks 10.9.5 (13F1911) - Time since boot: about one day

Gatekeeper:ⓘ

Mac App Store and identified developers

Clean up:ⓘ

com.adobe.ARM.[...].plist

/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper

Executable not found!

One orphan file found. [Clean up]

System Launch Agents:ⓘ

[not loaded] 5 Apple tasks

[loaded] 144 Apple tasks

[running] 35 Apple tasks

System Launch Daemons:ⓘ

[not loaded] 51 Apple tasks

[loaded] 139 Apple tasks

[running] 59 Apple tasks

Launch Agents:ⓘ

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist (Adobe Systems, Inc. - installed 2017-01-13) [Lookup]

[loaded] com.oracle.java.Java-Updater.plist (? 53b5746e be93c7fb - installed 2017-02-26) [Lookup]

[running] com.pharos.notify.plist (Pharos Systems International - installed 2013-10-02) [Lookup]

[running] com.pharos.popup.plist (Pharos Systems International - installed 2013-10-02) [Lookup]

Launch Daemons:ⓘ

[loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-01-13) [Lookup]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-01-13) [Lookup]

[loaded] com.adobe.fpsaud.plist (? 2afb3af7 a0305b84 - installed 2017-06-14) [Lookup]

[running] com.fitbit.galileod.plist (Fitbit, Inc. - installed 2017-03-23) [Lookup]

[loaded] com.microsoft.office.licensing.helper.plist (? 6d8cb30e 442fdde9 - installed 2011-03-10) [Lookup]

[loaded] com.oracle.java.Helper-Tool.plist (Shell Script e3fefdd2 - installed 2016-12-12) [Lookup]

User Launch Agents:ⓘ

[failed] com.adobe.ARM.[...].plist (? c8cc50de 0 - installed 2015-04-13) [Lookup] - /Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper: Executable not found!

[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist (Citrix Online LLC - installed 2015-05-05) [Lookup]

User Login Items:ⓘ

AdobeResourceSynchronizer Application - Hidden

(/Applications/Adobe Acrobat Reader DC.app/Contents/Helpers/AdobeResourceSynchronizer.app)

Internet Plug-ins:ⓘ

FlashPlayer-10.6: 26.0.0.131 (installed 2017-06-16) [Lookup]

QuickTime Plugin: 7.7.3 (installed 2016-07-23)

AdobePDFViewerNPAPI: 17.009.20044 (installed 2017-04-13) [Lookup]

AdobePDFViewer: 17.009.20044 (installed 2017-04-13) [Lookup]

Flash Player: 26.0.0.131 (installed 2017-06-16) [Lookup]

Default Browser: 537 (installed 2014-09-19)

SharePointBrowserPlugin: 14.7.3 (installed 2017-06-10) [Lookup]

Silverlight: 5.1.50901.0 (installed 2016-11-03) [Lookup]

DirectorShockwave: 11.6.3r633 (installed 2011-10-28) [Lookup]

JavaAppletPlugin: Java 8 Update 121 build 13 (installed 2017-02-26) Check version

User internet Plug-ins:ⓘ

CitrixOnlineWebDeploymentPlugin: 1.0.105 (installed 2013-04-25) [Lookup]

3rd Party Preference Panes:ⓘ

Flash Player (installed 2017-06-14) [Lookup]

Java (installed 2017-02-26) [Lookup]

Time Machine:ⓘ

Time Machine not configured!

Top Processes by CPU:ⓘ

4% WindowServer

2% kernel_task

1% Fitbit Connect Menubar Helper

1% mdworker

1% mdworker

Top Processes by Memory:ⓘ

602 MB kernel_task

458 MB com.apple.WebKit.WebContent

326 MB com.apple.WebKit.WebContent

211 MB com.apple.WebKit.WebContent

168 MB com.apple.WebKit.WebContent

Top Processes by Energy Use:ⓘ

6.34 WindowServer

1.12 Fitbit Connect Menubar Helper

0.94 com.apple.WebKit.Networking

0.70 com.apple.WebKit.WebContent

Virtual Memory Information:ⓘ

4.68 GB Available RAM

2.93 GB Free RAM

3.32 GB Used RAM

1.75 GB Cached files

0 B Swap Used

Software installs:ⓘ

Office 2011 14.7.3 Update: (installed 2017-06-10)

Adobe Flash Player: (installed 2017-06-14)

Fitbit Connect: (installed 2017-06-14)

Adobe Flash Player: (installed 2017-06-16)

Install information may not be complete.

Diagnostics Information:ⓘ

2017-06-29 17:17:15 EtreCheck.app Crash [Open]

Cause: objc_msgSend() selector name: objectForKey:

2017-06-29 17:09:20 com.apple.WebKit.WebContent Crash [Open]

Cause: Bundle controller class:

BrowserBundleController

Please let me know if you see an obvious issue and anything that I may be able to do to fix it. I've rebooted, emptied caches and cleared history and cookies. I haven't been able to find the "Library Caches" from the 'Go' menu in Finder. Besides that last, the other thing I haven't tried is enabling guest and signing in to check, followed by a reboot - those last two are the only other help options I've found in these forums.

Thank you!!

Deselect Proxies if selected.

System Preference > Network > Advanced > Proxies Tab

Unlock the lock if you have to.

Under "Select Protocol", uncheck any box if check marked.

Click "OK" then "Apply”.

If this doesn’t help, please run EtreCheck and post the report here.

http://etresoft.com/etrecheck

Download it, open Downloads folder, click on it to open and select ”Open”.

“Choose a problem” from the popup menu box and then “Start EtreCheck” in the dialog.

Click “Share Report” button in the toolbar, select “Copy to Clipboard”

and then paste it when you reply.

I don't quite understand how an issue so grave and totally blocking gets so little attention - is everybody on holiday?

same answer/issue using iTunes, app store and safari - and similar, I use other programs for browsing and my email - but still need a fix!

thanks and speak soon - anybody!

Dustin

Webkit engine is underlying technology behind Safari, Mail, App Store, iTunes,etc

webkit

"WebKit is the web browser engine used by Safari, App Store, and many other OS X, iOS, and Linux applications."

Credit: https://webkit.org

"WebKit is used as the rendering engine within Safari and was formerly used by Google's Chrome web browser on Windows, OS X, iOS and Android before version 4.4 KitKat (Chrome only used WebCore, and also incorporated its own JavaScript engine called V8 and a multi-process system).^[39] Other applications on OS X make use of WebKit, such as Apple's e-mail client Mail and the 2008 version of Microsoft's Entourage personal information manager, both of which make use of WebKit to render e-mail messages with HTML content."

Credit: https://en.wikipedia.org/wiki/WebKit

I am participating here for the love of it.

For most of us here, this is an activity before, in between and after the main thing in life.

Apple releases updates with bug fixes and asks us to keep the macOS updated.

As I stated earlier webkit engine is the underlying technology behind Safari, Mail, App Store, iTunes, etc.

These applications are interconnected and are part of OS X.

There are various reasons behind this “WebContent quit unexpectedly” issue.

In my first post here, I did ask for an EtreCheck report.

That report will show the version of macOS and Safari.

It will also show third party extensions, plug-ins and other third party applications that can interfere

with Safari.

After seeing the report, one can suggest solutions,if possible.

dear dominic23, I was not wanting to offend you or anybody, but this seems to be a funny little bugger of a problem - here my ethercheck report and -

- I really appreciate all your help -

EtreCheck version: 3.1.5 (343)

Report generated 2016-12-26 20:39:42

Download EtreCheck from https://etrecheck.com

Runtime 2:17

Performance: Excellent

Click the [Support] links for help with non-Apple products.

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

Problem: Apps are crashing

Description:

safari, iTunes, App Store !

Hardware Information: ⓘ

MacBook Pro (Retina, 13-inch, Early 2015)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro12,1

1 2,9 GHz Intel Core i5 (i5-5287U) CPU: 2-core

8 GB RAM Not upgradeable

BANK 0/DIMM0

4 GB DDR3 1867 MHz ok

BANK 1/DIMM0

4 GB DDR3 1867 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

Wireless: en0: 802.11 a/b/g/n/ac

Battery: Health = Normal - Cycle count = 32

Video Information: ⓘ

Intel Iris Graphics 6100

Color LCD 2560 x 1600

System Software: ⓘ

macOS Sierra 10.12.2 (16C67) - Time since boot: less than an hour

Disk Information: ⓘ

APPLE SSD SM0512G disk0 : (500,28 GB) (Solid State - TRIM: Yes)

[Show SMART report]

EFI (disk0s1) <not mounted> : 210 MB

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

Macintosh HD (disk1) / [Startup]: 499.06 GB (224.58 GB free)

Core Storage: disk0s2 499.42 GB Online

USB Information: ⓘ

Broadcom Corp. Bluetooth USB Host Controller

Logitech USB Receiver

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus

Configuration files: ⓘ

/etc/hosts - Count: 152

Gatekeeper: ⓘ

Mac App Store and identified developers

Kernel Extensions: ⓘ

/Library/Application Support/Avast/components/fileshield/unsigned

[loaded] com.avast.AvastFileShield (3.0.0 - SDK 10.9 - 2016-11-22) [Support]

/Library/Application Support/Avast/components/proxy/unsigned

[loaded] com.avast.PacketForwarder (2.1 - SDK 10.11 - 2016-11-22) [Support]

/System/Library/Extensions

[not loaded] com.devguru.driver.SamsungComposite (1.4.32 - SDK 10.6 - 2016-12-21) [Support]

/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns

[not loaded] com.devguru.driver.SamsungACMControl (1.4.32 - SDK 10.6 - 2015-06-16) [Support]

[not loaded] com.devguru.driver.SamsungACMData (1.4.32 - SDK 10.6 - 2015-06-16) [Support]

[not loaded] com.devguru.driver.SamsungMTP (1.4.32 - SDK 10.5 - 2015-06-16) [Support]

[not loaded] com.devguru.driver.SamsungSerial (1.4.32 - SDK 10.6 - 2015-06-16) [Support]

System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 183 Apple tasks

[running] 90 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 40 Apple tasks

[loaded] 167 Apple tasks

[running] 104 Apple tasks

Launch Agents: ⓘ

[not loaded] com.adobe.AAM.Updater-1.0.plist (2016-02-01) [Support]

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a 23d420d.plist (2016-10-13) [Support]

[running] com.avast.secureline.update-agent.plist (2016-12-12) [Support]

[loaded] com.avast.secureline.userinit.plist (2016-12-12) [Support]

[running] com.avast.update-agent.plist (2016-11-22) [Support]

[loaded] com.avast.userinit.plist (2016-11-22) [Support]

[loaded] com.google.keystone.agent.plist (2016-08-24) [Support]

[running] com.trusteer.rapport.rapportd.plist (2016-12-22) [Support]

[running] jp.co.canon.CUPSiPF.BackGrounder.plist (2016-02-08) [Support]

[running] jp.co.canon.CUPSiPF.PreviewDaemon.plist (2016-02-08) [Support]

Launch Daemons: ⓘ

[loaded] com.adobe.ARMDC.Communicator.plist (2016-10-13) [Support]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (2016-10-13) [Support]

[loaded] com.adobe.SwitchBoard.plist (2016-08-08) [Support]

[loaded] com.adobe.fpsaud.plist (2016-12-11) [Support]

[loaded] com.avast.init.plist (2016-11-22) [Support]

[loaded] com.avast.secureline.init.plist (2016-12-12) [Support]

[loaded] com.avast.secureline.uninstall.plist (2016-12-12) [Support]

[loaded] com.avast.secureline.update.plist (2016-12-12) [Support]

[loaded] com.avast.uninstall.plist (2016-11-22) [Support]

[loaded] com.avast.update.plist (2016-11-22) [Support]

[loaded] com.google.keystone.daemon.plist (2016-09-03) [Support]

[loaded] com.teamviewer.Helper.plist (2016-11-28) [Support]

[not loaded] com.teamviewer.teamviewer_service.plist (2016-11-28) [Support] - /Applications/TeamViewer.app/Contents/MacOS/TeamViewer_Service: Executable not found!

[running] com.trusteer.rooks.rooksd.plist (2016-12-15) [Support]

User Launch Agents: ⓘ

[loaded] com.avast.home.userinit.plist (2016-11-22) [Support]

[loaded] com.avast.secureline.home.userinit.plist (2016-12-12) [Support]

User Login Items: ⓘ

iTunesHelper Application (2016-12-14)

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

A360 Desktop Application

(/Applications/Autodesk/A360 Desktop.app)

fuspredownloader Application Hidden

(~/Library/Application Support/.FUS/fuspredownloader.app)

com.adobe.SwitchBoard.monitor.plist MachInit

(/etc/mach_init_per_user.d/com.adobe.SwitchBoard.monitor.plist)

Mach Init items are deprecated

Internet Plug-ins: ⓘ

FlashPlayer-10.6: 24.0.0.186 - SDK 10.9 (2016-12-15) [Support]

QuickTime Plugin: 7.7.3 (2016-12-21)

AdobePDFViewerNPAPI: 15.020.20042 - SDK 10.11 (2016-11-04) [Support]

AdobePDFViewer: 15.020.20042 - SDK 10.11 (2016-11-04) [Support]

Flash Player: 24.0.0.186 - SDK 10.9 (2016-12-15) [Support]

Google Earth Web Plug-in: 7.1 (2016-08-08) [Support]

Silverlight: 5.1.41105.0 - SDK 10.6 (2016-08-08) [Support]

3rd Party Preference Panes: ⓘ

Flash Player (2016-12-11) [Support]

Trusteer Endpoint Protection (2016-12-22) [Support]

Time Machine: ⓘ

Time Machine not configured!

Top Processes by CPU: ⓘ

53% firefox

11% WindowServer

10% plugin-container

6% kernel_task

3% hidd

Top Processes by Memory: ⓘ

745 MB firefox

702 MB kernel_task

532 MB thunderbird

303 MB mdworker(10)

238 MB soagent

Virtual Memory Information: ⓘ

2.76 GB Available RAM

40 MB Free RAM

5.24 GB Used RAM

2.72 GB Cached files

0 B Swap Used

Diagnostics Information: ⓘ

Dec 26, 2016, 08:29:09 PM Self test - passed

Dec 26, 2016, 08:12:08 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-201208_ [redacted].crash

/System/Library/Frameworks/WebKit.framework/Versions/A/XPCServices/com.apple.We bKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent

Dec 26, 2016, 08:06:25 PM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-200625_ [redacted].crash

Dec 26, 2016, 11:52:18 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-115218_ [redacted].crash

Dec 26, 2016, 11:43:24 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-114324_ [redacted].crash

Dec 26, 2016, 11:42:42 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-114242_ [redacted].crash

Dec 26, 2016, 11:42:37 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-114237_ [redacted].crash

Dec 26, 2016, 11:16:12 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-111612_ [redacted].crash

Dec 26, 2016, 11:16:01 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-111601_ [redacted].crash

Dec 26, 2016, 11:15:59 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-111559_ [redacted].crash

Dec 26, 2016, 11:15:55 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-111555_ [redacted].crash

Dec 26, 2016, 11:15:50 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-111550_ [redacted].crash

Dec 26, 2016, 10:54:54 AM ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-12-26-105454_ [redacted].crash

Dec 25, 2016, 08:46:31 AM /Library/Logs/DiagnosticReports/firefox_2016-12-25-084631_[redacted].cpu_resour ce.diag [Details]

/Applications/Firefox.app/Contents/MacOS/firefox

Files deleted by EtreCheck: ⓘ

Dec 26, 2016, 11:38:25 AM - ~/Library/LaunchAgents/com.bittorrent.uTorrent.plist