The FTB Launcher was first released in November 2012, it was released on a livestream to over 9000 people. The launcher has since taken on new updates, and developers have come and gone. There is currently a brand new launcher in development, scheduled to be released with the 1.6 FTB packs.
* update Mojang's authentication library
* fix bug with 1710ls forge versions not launching
* fixed: pack download resume code * fixed: Launcher can be not used with mods which are unzipped into mods folder * fixed: error dialog at pack startup if user has too old java * fixed: minor cosmetic error in modpack edit dialog * fixed: authentication when user has multiple profiles in one account. Feedback? * updated polish translation * fixed: changelog link * added more logging for debugging network slowdowns etc * fixed: authlib: use unique client IDs * fixed: fixed FML classpath => mods can be unzipped if require
1- download file into your computer
2-enter any nickname and password and login .
3-chose your mod pack ….
Ps: don’t forget to use “chmod+x app” before you run linux app .