1. Open your profile folder
    (Easy access: go to about:support and scroll down to “Profile Directory”, click “Open Directory”)
  2. Create a folder inside of it called chrome (all-lowercase)
  3. Create a [blank, empty, text] file inside of that called userContent.css (uppercase C, and, yes, that's Content, not Chrome!)
    (Windows users: don't forget to show file extensions!)
  4. paste this into it:
    /* Remove advertisements for Mozilla VPN */
    @-moz-document url(about:privatebrowsing) {
    	.promo {
    		display: none;
  5. Go to about:config and set toolkit.legacyUserProfileCustomizations.stylesheets to true
  6. Restart Firefox

Leave a Reply

Your email address will not be published. Required fields are marked *

Warning: This site uses Akismet to filter spam. Until or unless I can find a suitable replacement anti-spam solution, this means that (per their indemnification document) all commenters' IP addresses will be sent to Automattic, Inc., who may choose to share such with 3rd parties.
If this is unacceptable to you, I highly recommend using an anonymous proxy or public Wi-Fi connection when commenting.