Firefox 58.0 crashes at first launch with CCK 2.2.3.5-generated Autoconfig containing Permissions settings

[georgecm12]

With a CCK 2.2.3.5 generated Autoconfig file that contains anything in the Permissions section, Firefox 58.0 crashes the first time the program is launched for each user. Subsequent launches occur without issue.

Taking the same autoconfig file and removing the permissions section, Firefox launches without crashing.

Our JSON file is attached as an example (remove the .txt extension).

cck2.config.json.txt

[TotalMoop]

I have the same issue. When you have anything in the Permissions section, the resultant Autoconfig crashes FF at launch.
Remove them and it launches as expected.