Error starting Zotero

I just updated to the 2.0b7.6 and now I can't open my zotero panel. There is a yellow caution triangle sign in front of the zotero symbol in firefox. It says that "there was an error starting zotero."

I found the error code to be:

Error: [Exception... "Component returned failure code: 0x80004002 (NS_NOINTERFACE) [nsISupports.QueryInterface]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: chrome://snipit/content/snipitOverlay.js :: anonymous :: line 150" data: no]
Source File: chrome://browser/content/tabbrowser.xml
Line: 442

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