Had the same problem here. Firefox crashed hours later and would not open even in safe mode after until I deleted the plugin.
Got this message from terminal trying to launch from command line: /Applications/Firefox.app/Contents/MacOS/firefox -safe-mode
dyld: Symbol not found: _fputs$UNIX2003
Referenced from: /Library/Internet Plug-Ins/huludesktop.webplugin/Contents/MacOS/huludesktop
Expected in: /usr/lib/libSystem.B.dylib
here are links to my crash report:
http://crash-stats.mozilla.com/report/index/0c4747b0-126c-4562-8919-6f9842090528
http://crash-stats.mozilla.com/report/index/ab776300-0160-4b95-8d7d-04bbb2090528
hope you guys can sort this out as the app looks good.