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after automatic updating firefox, a message appear and firefox does not start anymore i got 2 different mesages both starting in same way

can i add a print screen of message? .bmp file?

xml parsing error...

after automatic updating firefox, a message appear and firefox does not start anymore i got 2 different mesages both starting in same way can i add a print screen of message? .bmp file? xml parsing error...

friendxx987 modificouno o

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now for every use of firefox i have to install again the old verion 22.0 after updating automatically with all security issues, at next use of firefox, same message appear and same procedure i have to follow: install version 22.0, work what i have to work; at exit or restart or at next use of pc... same procedure over and over again...