The files should be usable just note that if your setup doesn't work or an update to the launcher has broken Forge's 1.8.9 files you won't receive assistance. Quote This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

First go to the oficial forge website by copying and pasting this link in a new tab: files.minecraftforge.net/maven..

Once you're on the website scroll down to download latest and click installer this will bring you to an add focus page

in the upper right hand corner click skip and the file should download

next go to downloads and drag the forge installer to the desk then open minecraft and create a new profile and save it

next select your new profile and press play. after that's complete press quit game.

next double click the forge installer and open it

after that open minecraft and a new profile called forge should appear select it and then press play

Uninstall wacom driver mac. next a box should appear saying you successfully installed the client click ok and drag the two files to the trash

next open minecraft and select the new profile called forge and press play

now you are able to download awesome mods and texture packs like crazy craft or pixelmon please enjoy and i hope i helped you . :)

Supplies

Optifine is a mod that adds more graphic options to the Minecraft game, thanks to the way you configure your graphic options, to have better performance in the game improving the FPS, so that you will not jerk the game if you have an old PC.
It also has support for installing high-resolution textures in HD, so you do not get any errors when you install Textures Pack HD

Cranium Augmentations. Eye Augmentations. Back Augmentations.

How to download and install Optifine for Minecraft 1.8.9

1- Download and install in the following link: Minecraft Forge 1.8.9
2- Download Optifine 1.8.9
3-Go to the Windows Start button, then Run (if not, press ‘Windows’ + ‘R’) and type %appdata%
4- Open the .minecraft folder and then the mods folder
5- Add the downloaded Optifine file inside the mods folder
6- You will already have installed the Optifine 1.8.9