How To Install Minecraft Mods on Mac: Easiest, fastest and least complicated way.
I FORGOT TO MENTION IN THIS VIDEO TO DELETE META-INF. ITS IN MINECRAFT.JAR. IF YOU DON'T DELETE YOU WILL EITHER BLACK SCREEN OR GET WEIRD TEXTURE GLITCHES.
To install open finder, go to your username on the side bar, go to library, then application support. Find Minecraft on the list. Open it, the go into the bin folder. Open minecraft.jar with archive utility. Save original copy somewhere else. Rename folder that came from minecraft.jar to minecraft.jar. Throw in the files from the mod. DELETE META-INF. Open Minecraft