Our favourite bookmark-syncing extension for Firefox, Foxmarks, is venturing into syncing your passwords as well as your bookmarks between browsers over the internet. Coupled with Foxmarks' new profile support, you can selectively sync what passwords go where and keep your banking passwords at home and your IT passwords at work. You have to opt into the password sync beta to enable it in your Foxmarks account. Of course, trusting your important passwords to a feature in beta—no matter how secure it appears to be—should make anyone concerned about security and privacy antsy, so do proceed with caution, and maybe only use this feature for your low-security passwords. Do you sync your passwords to the cloud, or do you wish you could? Let us know in the comments.