I edit documents across multiple platforms (Mac, Windows and Linux). I do therfor use Libreoffice on my Mac because it's a free cross-platform product. Libreoffice fresh (and still) worked perfectly fine on El Capitan. Sierra is a diffrent story. The program will install, but will only work the first three to four first startups. Then it will crash every time you launch it. I have also tried to install "Libreoffice still" with no luck Here is a part of the error message: Spoiler: Error message Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY Termination Signal: Segmentation fault: 11 Termination Reason: Namespace SIGNAL, Code 0xb Terminating Process: exc handler  I belive the issue might be releated to gatekeeper, but I have no idea where to start troubleshooting. Reinstalling makes it work for a few more launches. Anyone else that have experienced this?