Bug #66052 "MySQLWorkbench" can't be opened because it is from an unidentified developer.
Submitted: 27 Jul 2012 14:55 Modified: 10 Sep 2012 9:01
Reporter: Pete Walker Email Updates:
Status: Closed Impact on me:
Category:MySQL Workbench Severity:S2 (Serious)
Version:5.2.41 OS:MacOS (10.8)
Assigned to: CPU Architecture:Any

[27 Jul 2012 14:55] Pete Walker
When Gatekeeper has been set to only allow installation of apps from the Mac App Store and identified developers, MySQL Workbench won't be launched.

How to repeat:
1. Set Gatekeeper to allow installation of apps from the Mac App Store and identified developers
2. Download MySQL Workbench
3. Launch MySQL Workbench

Suggested fix:
Sign the app with apple before distributing:


Or, distribute through the App Store.
[29 Aug 2012 18:28] Eric Boggess
Please sign you code MySQL, so that I can run the MySQL Workbench on my Mac running OS X Lion!

[7 Sep 2012 7:48] Philip Olson
Fixed as of the upcoming Workbench 5.2.43, and here's the changelog entry:

 On Mac OS X, code signing was added to MySQL Workbench so it will
 now load when this condition is required. 

Thank you for the report.
[7 Sep 2012 20:28] Kevin Brown
This doesn't help me today!!   Is there a workaround for 5.2.42?
[10 Sep 2012 9:01] Pete Walker

You can get around this fairly simply. Open finder and navigate to your applications folder. If you right-click on Workbench and click open, the warning that pops up will allow you to actually open the software. Once you've opened it once with this method, you should be able to open it as normal. If you upgrade, OS X treats it as a new program, so you'll need to repeat this process again (although, I guess not for 5.2.43).