i see no errors in the console log, the window isn't hidden.. it's just not displaying i did a downgrade to WebKit-SVN-r105587 and it works. i cleared out all preferences, did a full uninstall with appzapper.. tried setting as split screen and separate window before upgrading from r105587, made no difference. snippet and extension builder still popup. is there any error log i can take a look at, i realize this will probably not be enough to determine what's wrong.. sorry using r106466
*** This bug has been marked as a duplicate of bug 77424 ***