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Siphon very useful but also doubtful Rated 3 out of 5 stars
A very useful und well working extension or add-on, nice!
But installation asks for your email address and password.
In fact only a username and login is required to create an account on http://siphon-fx.com/
Real email address may be useful for recovery of lost password.
So only use one way or other email account. NEVER your main.