Do I lose my saved passwords if I update to 4.0?

I want to switch to Firefox 4.0, but I don't want to lose the passwords that saved my current version (3.0.13). It will be a problem if I upgraded, or 4.0 will keep my previously saved passwords?

You shouldn't lose your passwords when upgrading to Firefox 4.0, but you 're "ignoring" 3.5 and 3.6, so you must back up your Firefox Profile just-in-case set. Version for the next updates of version present any number of problems, but jump on two main versions can sometimes cause data loss.

http://support.Mozilla.com/en-us/KB/backing+up+your+information

Tags: Firefox

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