Problem 2.0rc3

What should I do ?

ticket number : 693706877

Failed to load XPCOM component: /Users/USERNAME/Library/Application Support/Firefox/Profiles/czthkpu2.default/extensions/pythonext@mozdev.org/components/pyXPCOMExtensionHelper.pyo

Failed to load XPCOM component: /Users/USERNAME/Library/Application Support/Firefox/Profiles/czthkpu2.default/extensions/zoteroMacWordIntegration@zotero.org/components/zoteroIntegrationApplication.pyo
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