SpamBlocker for Chrome
More About SpamBlocker
While Gmail is extremely good at catching viruses and phishing attempts, it is not as effective in blocking messages from senders to which we have signed up and no longer wish to hear from.
Unsubscribing can be tedious, annoying and often almost impossible. In just one click, SpamBlocker automatically filters out unwanted messages and saves them in a separate, still accessible, folder.