Mozilla is planning to require developers to submit their Firefox extensions to the company’s main distribution channel. The move will give users more confidence in the extensions and add-ons they re installing. Mozilla officials said they didn t want to take that approach. The company plans to begin displaying warnings about unsigned extensions in Firefox 39 in the next three months. The change will mean that after a transition period of about three months, users won’t be able to install any unsigned extensions on either the Release or Beta versions of Firefox.
Source: https://threatpost.com/mozilla-to-enforce-signing-for-firefox-extensions-soon/110995/