Firefox - Anyway to save all username/passwords for websites to a file?

[photoshop]

Firefox - Anyway to save all username/passwords for websites to a file?

Just in the process of sorting things out and getting ready for Win7 so would like to have a file with all usernames/passwords for webpages firefox has saved for me.

Possible?

 

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and then is it just a simple case of putting that back in the same folder after format and win7 install?

 

[photoshop]

cheers fella