Disable Import wizard at first launch Mozilla Firefox 50 - Mac Sierra

Try EnableProfileMigrator=0.

/Applications/Firefox.app/Contents/Resources/browser is the right spot.

@app2pack Have you been able to get this to work. We are also trying to suppress the import wizard during initial startup on Firefox. I've tried using this method, which didn't work. Also tried adding EnableProfileMigrator=false to our custom .cfg file we have created within the Resources directory. Still no luck. Any help would be greatly appreciated!

Just solved it. Need to create an ini file called override.ini then include the following:

[XRE]
EnableProfileMigrator=0

I first tried saving the .ini file within Text Edit, did not work. I had to create it within Text Wrangler. Once the file has been created, add it to /Applications/Firefox.app/Contents/Resources/browser

This can be tested multiple times by logging into the machine as a new user, without the need to rebuild.

This was tested successfully on Firefox 52.

This, and many other things, can also be accomplished with the CCK:
https://mike.kaply.com/cck2/

To create an installer that installs Firefox and also installs the CCK, use autopkg and Greg Neagle's recipe:
https://github.com/autopkg/gregneagle-recipes/tree/master/Mozilla