Firefox is a web browser, not an email client. If you use Firefox to access your webmail, check for spam filter options on your email provider's web site. Or use a decent email client like Thunderbird.

Are you talking about in Firefox, or your e-mail? Go here and register for protection for your e-mail and phones; '''[https://www.donotcall.gov/ The National Do Not Call Registry]''' ---------------------------- '''[https://addons.mozilla.org/en-US/firefox/addon/adblock-plus/ Adblock Plus]''' {web link} Blocks annoying video ads on YouTube, Facebook ads, banners and much more. Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable). '''[https://addons.mozilla.org/en-US/firefox/addon/adblock-plus-pop-up-addon/ Adblock Plus Pop-up Addon]''' {web link} Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions. Forum; '''[https://adblockplus.org/forum/ Adblock Plus Homepage]''' {web link}