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The add-on is not what Firefox expected

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I am trying to connect via SonicWall Virtual Office (VPN) and I'm getting the error message: The add-on from <company site> could not be installed because it does not match the add-on Firefox expected.

This is the first time this particular error has come up. I have other users who are currently using this software.

Suggestions?

Thank you, Ed Resleff

I am trying to connect via SonicWall Virtual Office (VPN) and I'm getting the error message: The add-on from <company site> could not be installed because it does not match the add-on Firefox expected. This is the first time this particular error has come up. I have other users who are currently using this software. Suggestions? Thank you, Ed Resleff

ప్రత్యుత్తరాలన్నీ (2)

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I've called the big guys to help you. Good luck.

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Is this about a signed extension (i.e has a META-INF folder in the xpi file)?