There is an option to run it using a new profile (see below) or in safe mode, no add-ons, etc. is this the option you tried or did you just disable your add-ons individually.
You could also try creating a new profile and see if that works as the new profile wouldn't have any changes to about:config, add-ons, etc. If that works then you could delete the other profile and use the new one as the default and start from scratch building your add-ons one at a time and test after each add-on..
If the new profile doesn't work, but it works in safe mode then I would suggest a complete uninstall and reinstall adding only essential add-ons (security based) one at a time, NoScript, WOT, Dr Web link checker, etc. If that gives no problem then it would be building your add-ons one at a time and test after each add-on..