Script to enable extension in Safari 10.X

Pre-Sierra you can do some of this with AppleScript GUI automation, but this broke in Sierra due to SIP protection of the TCC.db file.
I had a case open with Apple for this and currently they are not providing options for this on purpose (security considerations), but they did put a feature request in for this.

If you're looking to do this pre-Sierra, I can share some of my scripts with you if you'd like.

Thanks! We definitely have a need on the Sierra platform but I would like to see the scripts you used for previous OS revs. We do still have El Cap and Yosemite machines in our environment.

I've opened a case with Apple on this. Maybe if enough people complain they will bump up the priority of the feature request. I appreciate the info!

Here you go, edited it some to remove some of the custom stuff we do here, but it should get you in the right direction:

#!/bin/bash
extName="ublock.safariextz"
extPath="/Users/$currentUser/Library/Safari/Extensions/"
packageExtLocation="/tmp/"
tccPath="/Library/Application Support/com.apple.TCC/TCC.db"

sqlite3 "$tccPath" "INSERT or REPLACE INTO access VALUES('kTCCServiceAccessibility','com.apple.Terminal',0,1,1,NULL,NULL)"          
sqlite3 "$tccPath" "INSERT or REPLACE INTO access VALUES('kTCCServiceAccessibility','/usr/bin/osascript',1,1,1,NULL,NULL)"
sqlite3 "$tccPath" "INSERT or REPLACE INTO access VALUES('kTCCServiceAccessibility','com.apple.loginwindow',0,1,1,NULL,NULL)"

# Give it some time to process..
sleep 1

# Now we're going to mess with UI elements. First we open the Extension, which initiates copy to ~/Library/Safari/Extensions/
# Then we're going to tell Safari to hit the Trust button, which creates the encryped keychain entry
# Then we close the Preferences Window by using Command + W.

osascript <<END
tell application "Safari" to activate
delay 1
tell application "System Events"
tell application process "Safari"
set frontmost to true
tell application "Safari" to open location "$packageExtLocation$extName"
delay 1
click button 1 of sheet 1 of window 1
keystroke "w" using command down
end tell
end tell
END

Thanks a bunch! Much appreciated.

I submitted a case to Apple and they instructed me to file a bug report/feature requests which was just closed with the rank of "no value" and a note that they have not plans to do this because of past issues with malware. Guess I won't get my hopes up for a change in the future.

Sorry about this... (someone at Apple reads my blog it seems)...

Why I oughta... ;)