Thank you for the suggestion. Etrecheck found a couple of other problems but not that solved the blocked plug in issue. After your question about firewalls, I checked my Mac and realized I did not have it on, so I turned it on now. I do have an adblocker on (for many years).
I have had no new hardware or software for some time, and the problem just started yesterday with this and one other click through button on another email. This blocked item is a pdf, and the other I don't know but probably is a pdf file and is coming from http://s3.amazonaws.com
New research says I can right click on these buttons and open them in a new tab. That works. But not how it is supposed to work. No other sites or buttons have required this.
Here are the results from Etrecheck. Would appreciate any further insights, thank you.
EtreCheck version: 3.2.2 (362)
Report generated 2017-05-02 09:59:21
Download EtreCheck from https://etrecheck.com
Runtime: 1:44
Performance: Excellent
Click the [Lookup] links for more information from Apple Support Communities.
Click the [Details] links for more information about that line.
Problem: Other problem
Description:
retesting
Hardware Information: ⓘ
iMac (21.5-inch, Mid 2011)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac12,1
1 2.5 GHz Intel Core i5 (i5-2400S) CPU: 4-core
20 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
BANK 0/DIMM1
8 GB DDR3 1333 MHz ok
BANK 1/DIMM1
8 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ⓘ
AMD Radeon HD 6750M - VRAM: 512 MB
iMac 1920 x 1080
System Software: ⓘ
OS X El Capitan 10.11.6 (15G1421) - Time since boot: about 11 days
Disk Information: ⓘ
WDC WD20EARX-32PASB0 disk0 : (2 TB) (Rotational)
[Show SMART report]
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) /Volumes/Macintosh HD : 2.00 TB (1.68 TB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Crucial_CT240M500SSD1 disk1 : (240.06 GB) (Solid State - TRIM: No)
[Show SMART report]
EFI (disk1s1) <not mounted> : 210 MB
Macintosh SSD (disk1s2) / [Startup]: 239.20 GB (166.92 GB free)
Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB
OPTIARC DVD RW AD-5680H ()
USB Information: ⓘ
Apple Inc. FaceTime HD Camera (Built-in)
Apple, Inc. Keyboard Hub
Apple Inc. Apple Keyboard
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Card Reader
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/Library/Extensions
[not loaded] org.virtualbox.kext.VBoxDrv (4.1.6 - 2017-03-28) [Lookup]
[not loaded] org.virtualbox.kext.VBoxNetAdp (4.1.6 - 2017-03-28) [Lookup]
[not loaded] org.virtualbox.kext.VBoxNetFlt (4.1.6 - 2017-03-28) [Lookup]
[not loaded] org.virtualbox.kext.VBoxUSB (4.1.6 - 2017-03-28) [Lookup]
/System/Library/Extensions
[not loaded] com.tomtom.driver.UsbEthernetGadget (1.0.0d1 - 2017-03-28) [Lookup]
Startup Items: ⓘ
VirtualBox: Path: /Library/StartupItems/VirtualBox
Startup items no longer function in OS X Yosemite or later
System Launch Agents: ⓘ
[not loaded] 7 Apple tasks
[loaded] 151 Apple tasks
[running] 81 Apple tasks
System Launch Daemons: ⓘ
[not loaded] 44 Apple tasks
[loaded] 149 Apple tasks
[running] 98 Apple tasks
Launch Agents: ⓘ
[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c95072f92651fb65e1bf9c8e43c37a2 3d420d.plist ✔︎ (2017-02-05) [Lookup]
[running] com.brother.LOGINserver.plist (2014-11-26) [Lookup]
[loaded] com.google.keystone.agent.plist ✔︎ (2017-03-28) [Lookup]
[loaded] com.oracle.java.Java-Updater.plist (2017-04-22) [Lookup]
Launch Daemons: ⓘ
[loaded] com.adobe.ARMDC.Communicator.plist ✔︎ (2017-02-05) [Lookup]
[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist ✔︎ (2017-02-05) [Lookup]
[loaded] com.adobe.fpsaud.plist (2017-04-17) [Lookup]
[running] com.fitbit.galileod.plist (2014-01-04) [Lookup]
[loaded] com.google.keystone.daemon.plist ✔︎ (2017-04-17) [Lookup]
[loaded] com.microsoft.autoupdate.helper.plist ✔︎ (2017-04-11) [Lookup]
[loaded] com.microsoft.office.licensingV2.helper.plist ✔︎ (2016-01-09) [Lookup]
[loaded] com.oracle.java.Helper-Tool.plist § (2017-03-15) [Lookup]
[running] net.exirion.ssdfanctrl.plist (2013-10-31) [Lookup]
User Launch Agents: ⓘ
[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist ✔︎ (2016-04-21) [Lookup]
User Login Items: ⓘ
OneDrive Application
(/Volumes/Macintosh HD/[redacted]/Desktop/OneDrive.app)
Messages Application
(/Applications/Messages.app)
SecureSafe Application
(/Applications/SecureSafe.app)
HP Scheduler Application
(/Library/Application Support/Hewlett-Packard/Software Update/HP Scheduler.app)
Internet Plug-ins: ⓘ
o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-20) [Lookup]
Google Earth Web Plug-in: 7.1 (2017-01-17) [Lookup]
Default Browser: 601 - SDK 10.11 (2016-08-30)
NP_2020Player_WEB: 5.0.94.0 - SDK 10.6 (2011-10-26) [Lookup]
AdobePDFViewerNPAPI: 15.023.20053 - SDK 10.11 (2016-12-23) [Lookup]
FlashPlayer-10.6: 25.0.0.163 - SDK 10.9 (2017-05-02) [Lookup]
Silverlight: 5.1.50901.0 - SDK 10.6 (2017-02-07) [Lookup]
QuickTime Plugin: 7.7.3 (2017-03-28)
Flash Player: 25.0.0.163 - SDK 10.9 (2017-05-02) [Lookup]
googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Lookup]
NP_2020Player_IKEA: 5.0.94.1 - SDK 10.6 (2012-09-28) [Lookup]
AdobePDFViewer: 15.023.20053 - SDK 10.11 (2016-12-23) [Lookup]
iPhotoPhotocast: 7.0 (2010-05-02)
SharePointBrowserPlugin: 14.6.0 - SDK 10.6 (2016-01-21) [Lookup]
JavaAppletPlugin: Java 8 Update 131 build 11 (2017-04-22) Check version
User internet Plug-ins: ⓘ
CitrixOnlineWebDeploymentPlugin: 1.0.105 (2013-04-25) [Lookup]
fbplugin_1_0_3: Unknown (2010-06-12) [Lookup]
Picasa: 1.0 (2010-06-18) [Lookup]
Safari Extensions: ⓘ
Adblock Plus - Eyeo GmbH - https://adblockplus.org/ (2017-04-02)
Stylish - Vladimir Sobolev - http://sobolev.us/stylish (2017-04-02)
3rd Party Preference Panes: ⓘ
Flash Player (2017-04-17) [Lookup]
Java (2017-04-22) [Lookup]
Time Machine: ⓘ
Skip System Files: NO
Mobile backups: OFF
Auto backup: YES
Volumes being backed up:
Macintosh SSD: Disk size: 239.20 GB Disk used: 72.28 GB
Destinations:
Western Digital HD [Local]
Total size: 500.07 GB
Total number of backups: 5
Oldest backup: 11/21/16, 7:31 AM
Last backup: 2/28/17, 7:26 AM
Size of backup disk: Adequate
Backup size 500.07 GB > (Disk used 72.28 GB X 3)
Top Processes by CPU: ⓘ
2% fontd
2% Microsoft PowerPoint
1% WindowServer
1% Microsoft Excel
0% kernel_task
Top Processes by Memory: ⓘ
1.36 GB kernel_task
696 MB Microsoft Excel
471 MB softwareupdated
451 MB Finder
328 MB Skype
Virtual Memory Information: ⓘ
12.36 GB Available RAM
8.46 GB Free RAM
7.64 GB Used RAM
3.90 GB Cached files
214 MB Swap Used
Diagnostics Information: ⓘ
2017-05-01 12:23:22 /Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2017-05-01-122322_[ redacted].cpu_resource.diag [Details]
/System/Library/StagedFrameworks/Safari/WebKit.framework/Versions/A/XPCServices /com.apple.WebKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent
2017-04-30 15:17:48 /Volumes/Macintosh HD/[redacted]/Library/Logs/DiagnosticReports/iTunes_2017-04-30-151748_[redacted ].crash
com.apple.iTunes - /Applications/iTunes.app/Contents/MacOS/iTunes
Files deleted by EtreCheck: ⓘ
2017-05-02 09:50:20 - /Volumes/Macintosh HD/[redacted]/Library/LaunchAgents/com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a 4f123223c9cc56a8fd83a6f7ae.plist
2017-05-02 09:50:20 - /Volumes/Macintosh HD/[redacted]/Library/LaunchAgents/com.apple.SafariBookmarksSyncer.plist
2017-05-02 09:50:20 - /Volumes/Macintosh HD/[redacted]/Library/LaunchAgents/com.google.GoogleContactSyncAgent.plist
2017-05-02 09:50:20 - /Volumes/Macintosh HD/[redacted]/Library/LaunchAgents/org.virtualbox.vboxwebsrv.plist
2017-05-02 09:50:31 - /Library/LaunchAgents/com.lost.smoke.plist
2017-05-02 09:50:31 - /Library/LaunchDaemons/com.sharpcast.xfsmond.plist
2017-05-02 09:52:25 - /Volumes/Macintosh HD/[redacted]/Library/LaunchAgents/com.jdibackup.JustCloud.autostart.plist
2017-05-02 09:52:25 - /Volumes/Macintosh HD/[redacted]/Library/LaunchAgents/com.jdibackup.JustCloud.notify.plist