Trying again it worked now. Please disregard my previous post.

After trying again, it somehow worked now. Please disregard this bug report. I have no idea why it didn't work the first time.

I understand that you have to install the modpack, but it doesn't appear to work on Steam on OS X.

I extract the mod pack into

/Users/leonhardprintz/Library/Application Support/factorio/mods

And then I run the game, but none of the mods load.

Has anyone else had this experience?

Steps to reproduce the bug:
1) Clean installation of Factorio on OS X through Steam.
2) Place place .zip mod files in the mod folder (I unzipped the SeaBlockModPack into the mod folder)
3) Run the game

Result:
No mods are loaded. The game is still vanilla.

Detailed Description:
I've recently ...