User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0 (Beta/Release) Build ID: 20131208030204 Steps to reproduce: Updated to latest Nightly (2013-12-09), tried to start Nightly. Actual results: Windows error message pops up, notifying me that XPCOM failed to start. Another Windows error message box pops up, telling me "pgort100.dll" is missing. Expected results: Nightly should have started
Same happening here, except system is XP SP3, fully updated. Used Help > About Firefox to update Firefox (Australis) 28.0a1 this morning. Message: The application has failed to start because pgort100.dll was not found. Reinstalling the application may fix the problem. What I tried: 1 Uninstalled 12-09-2013 update to Firefox 28.0a1 leaving profile 2 Download and reinstalled 12-09-2013 full installer 3 Same problem. 4 Downloaded 12-08-2013 full installer, installed over the top of 12-09-2013 5 Started Firefox and 12-08-2013 update worked 6 Ran update (to 12-09-2013) using Help > About Firefox and same error message on startup of Firefox 7 Ran full installer of 12-08-2013 over the top of 12-09-2013 and restart worked. Problem appears to be with something in 12-09-2013 update/installer for Firefox (Australis) 28.0a1.