Just read the Linux Magazine tweet about Weave 1.0 for Firefox and Fennec. Don't remember when I last tried weave firefox addon. So I quickly installed the addon and found the connect and sync weave menu options were disabled. Figured out this its not a bug but the weave is just not yet configured. Looks like there is usability bug here.
You can configure weave from Edit Menu > Preferences > Sync. Click on Create Mozilla Weave Account and provide new login information. The dialog warns about NoScript plugin but you can safely ignore that. Then you have CAPTHCA challenge and give a secret pass phrase. For now you can choose to sync everything or give custom settings.
Enjoy the joy of weave and leave a comment to share your experiences about weave.