Open an onion page

Hello i am using: firefox v17.0.6, vidali 0.2.21, tor 0.2.3.25 (git-17c24b3118224d65)

I am testing opening an .onion page and gives me this error:

XML Parsing Error: unexpected parser state Location: jar:file:///home/ovnicraft/Downloads/tor-browser_en-US/App/Firefox/omni.ja!/chrome/toolkit/content/global/netError.xhtml Line Number 308, Column 50:

&netReset.longDesc;

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Trac:
Username: ovnicraft