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.
Users using 1.4.3 will need to either turn the beta channel on or re-download the launcher + added command line argument support -- examples of note: --disable-tray disables the tray * java 8 u 20 + support avaliable for osx and forge for 1.6.4 1.7.2 and 1.7.10 * Paste uploading now uses the FTB paste site * Enabled force update functionality on libraries from pack.json files * update authlib to the version used in 1.8 MC * Show error message if user has mojang account without minecraft profiles * check profile display names against mojang account to allow use of multiple MC accounts * rewrote of news pane(uses RSS now) and console window for enhanced performance * fixed empty map/texturepack pane bugs * updated chinese, german, italian localizations * various performance enhancements * fixed case sensitivity issues with pack removal * fixed negative width/height bug for some linux users * recoded dialogs for better scaling capability - jarmodding capabilities in Minecraft 1.6+
* Additional debugging for users with authentication issues * Minor gui tweaks
* Fix updater hash checking error * Improve performance of analytics, attempt to resolve issues with certain antivirus software causing packet issues * Adjust c:\users warnings to only show up if unicode characters are detected * Adjust fullscreen height to take start menu and other os bars into account * Add additional debugging code to the authentication system * Adjust osx 32/64 bit detection code to take into account osx allowing some 64 bit apps to run on 32 bit kernels
* Fix for international localizations * add reccomended paths for installation * prevent installing in temporary internet files
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 .