Webkits crashes websites/browser (Safari, Opera, Firefox)

Certain websites will stall, fail to load, and then crash. Sometimes the crashing website will cause the whole app to crash. This happens in Opera, Safari, and Firefox. I am running OS X El Capitan 10.11.6 on a mid 2012 MacBook Pro 2.5 GHz Intel Core i5. Below is an Etrecheck report. I deleted the adware but it still is crashing. Thanks for your help! See below:

EtreCheck version: 4.3.1 (4D024)

Report generated: 2018-05-29 15:09:04

Download EtreCheck from https://etrecheck.com

Runtime: 4:58

Performance: Good

Problem: Apps are crashing

Description:

Webpages are crashing on Opera and Safari, and sometimes crashes the whole app. com.apple.WebKit.WebContent [12404]

Major Issues:

Anything that appears on this list needs immediate attention.

Time Machine backup out-of-date- The last Time Machine backup is over 10 days old.

Battery failure- Your battery is reporting that it needs to be serviced.

Failing hard drive- Disk errors detected.

Adware- Adware detected.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Time Machine auto backup disabled- Time Machine auto backups are disabled.

Upgradeable hard drive- This machine’s hard drive could be replaced with an SSD. This would dramatically improve your machine’s performance.

High battery cycle count- Your battery may be losing capacity.

Corrupt filesystem- This machine shut down due to a corrupt filesystem.

Apps crashing- There have been numerous app crashes.

Clean up- There are orphan files that could be removed.

Unsigned files- There is unsigned software installed. They appear to be legitimate but should be reviewed.

32-bit Apps- This machine has 32-bits apps that may have problems in the future.

Abnormal shutdown- Your machine shut down abnormally.

Hardware Information:

MacBook Pro (13-inch, Mid 2012)

MacBook Pro Model: MacBookPro9,2

1 2.5 GHz Intel Core i5 (i5-3210M) CPU: 2-core

4 GB RAM - Upgradeable

BANK 0/DIMM0 - 2 GB DDR3 1600 ok

BANK 1/DIMM0 - 2 GB DDR3 1600 ok

Battery: Health = Service Battery - Cycle count = 905

Video Information:

Intel HD Graphics 4000 - VRAM: 1536 MB

Color LCD 1280 x 800

Drives:

disk0 - APPLE HDD HTS545050A7E362 500.11 GB (Mechanical)

Internal SATA 3 Gigabit Serial ATA

disk0s1 - EFI [EFI] 210 MB

disk0s2 - Macintosh HD [Core Storage Container] 499.25 GB

disk1 - Macintosh HD (Journaled HFS+) 498.88 GB

disk0s3 - Recovery HD [Recovery] 650 MB

Mounted Volumes:

disk1 - Macintosh HD 498.88 GB (49.57 GB free)

Journaled HFS+

Mount point: /

Errors: 7

Network:

Interface en0: Ethernet

Interface fw0: FireWire

Interface en1: Wi-Fi

802.11 a/b/g/n

One IPv4 address

Interface en4: iPhone

Interface en3: Bluetooth PAN

Interface bridge0: Thunderbolt Bridge

System Software:

OS X El Capitan 10.11.6 (15G1611)

Time since boot: About 12 days

System Load: 1.53 (1 min ago) 1.51 (5 min ago) 2.48 (15 min ago)

Security:

Adware:

Launchd: ~/Library/LaunchAgents/com.onlineapplicationstatus.AppStatus.plist

Reason: Adware name match

Executable: /Users/***/Library/Application Support/AppCommon/AppStatus --protect

Launchd: ~/Library/LaunchAgents/com.appactivity.AppActivity.plist

Reason: Adware pattern match

Executable: /Users/***/Library/Application Support/AppPolicy/AppActivity -i -c 748931 -isn 22F0309A-1597-4C26-8526-DF915E04610B

Unsigned Files:

Launchd: /Library/LaunchDaemons/com.oracle.java.Helper-Tool.plist

Executable: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Helper-Tool

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchAgents/com.oracle.java.Java-Updater.plist

Executable: /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java Updater.app/Contents/MacOS/Java Updater -bgcheck

Details: Exact match found in the whitelist - probably OK

Launchd: ~/Library/LaunchAgents/com.bittorrent.uTorrent.plist

Executable: /Applications/uTorrent.app -n /Applications/uTorrent.app

32-bit Applications:

37 32-bit apps

Kernel Extensions:

/Library/Extensions

[Loaded] Soundflower.kext (MATT INGALLS, 2.0b2 - SDK 10.10)

[Not Loaded] NIUSBAudioDriver.kext (Native Instruments GmbH, 2.6.0 (R82) - SDK 10.8)

System Launch Agents:

System Launch Daemons:

Launch Agents:

Launch Daemons:

User Launch Agents:

User Login Items:

Flux Application (Michael Herf - installed 2018-05-05)

(/Users/***/Applications/Flux.app)

iTunesHelper Application (Apple - installed 2018-04-01)

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

Internet Plug-ins:

o1dbrowserplugin: 5.41.3.0 (installed 2017-11-09)

nplastpass: 4.1.2 (installed 2016-11-10)

Default Browser: 601 (installed 2016-12-11)

AdobePDFViewerNPAPI: 17.012.20098 (installed 2017-09-01)

FlashPlayer-10.6: 29.0.0.171 (installed 2018-05-10)

Silverlight: 5.1.41212.0 (installed 2016-03-06)

QuickTime Plugin: 7.7.3 (installed 2017-09-20)

Flash Player: 29.0.0.171 (installed 2018-05-10)

googletalkbrowserplugin: 5.41.3.0 (installed 2015-12-11)

PepperFlashPlayer: 29.0.0.171 (installed 2018-05-10)

AdobePDFViewer: 17.012.20098 (installed 2017-09-01)

JavaAppletPlugin: Java 8 Update 151 build 12 (installed 2017-10-30)

User Internet Plug-ins:

CitrixOnlineWebDeploymentPlugin: 1.0.105 (installed 2013-04-25)

ZoomUsPlugIn: 4.0.36452.0616 (installed 2017-06-28)

Stamps.com: 1.1.13 (installed 2015-02-24)

3rd Party Preference Panes:

Flash Player (installed 2018-04-29)

Java (installed 2017-10-30)

Native Instruments USB Audio (installed 2013-10-16)

Time Machine:

Skip System Files: No

Mobile backups: No

Auto backup: No

Volumes being backed up:

Macintosh HD: Disk size: 498.88 GB - Disk used: 449.30 GB

Destinations:

T******************s [Local] (Last used)

Total size: 1.50 TB

Total number of backups: 4

Oldest backup: 2016-08-03 01:28:36

Last backup: 2018-04-16 12:47:32

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Energy Use:

Virtual Memory Information:

Software Installs (past 30 days):

Clean up:

~/Library/LaunchAgents/com.rogueamoeba.loopbackd.plist

/Users/***/Downloads/Loopback.app/Contents/Library/LoginItems/loopbackd.app/Cont ents/MacOS/loopbackd

Executable not found

~/Library/LaunchAgents/com.pia.pia_manager.plist

/Applications/Private Internet Access.app

Executable not found

~/Library/LaunchAgents/com.tidal.desktop.plist

/Applications/TIDAL.app/Contents/MacOS/TIDAL

Executable not found

~/Library/LaunchAgents/com.avast.home.userinit.plist

/Users/***/Library/Application Support/Avast/hub/userinit.sh

Executable not found

Diagnostics Information (past 7 days):

2018-05-29 15:00:17 OnyX.app Hang

/Applications/OnyX.app

2018-05-29 14:45:15 com.apple.WebKit.WebContent Crash (2 times)

/System/Library/StagedFrameworks/Safari/WebKit.framework/Versions/A/XPCServices/ com.apple.WebKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent

2018-05-29 14:39:15 MullvadVPN.app Crash (33 times)

/Applications/MullvadVPN.app

2018-05-17 17:43:47 Last Shutdown Cause: -60 - Corrupt filesystem

End of report