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firefox is doing this when i open something in facebook marketplace

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crystalmoon47
crystalmoon47
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The address wasn’t understood

Firefox doesn’t know how to open this address, because one of the following protocols (fb) isn’t associated with any program or is not allowed in this context. 

   You might need to install other software to open this address.

How can i fix this?

The address wasn’t understood Firefox doesn’t know how to open this address, because one of the following protocols (fb) isn’t associated with any program or is not allowed in this context. You might need to install other software to open this address. How can i fix this?