Mozilla starts enforcing signatures for Add-Ons ( https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox ). In Firefox 43 it's still possible to run unsigned Add-Ons by changing the entry xpinstall.signatures.required in about:config (which probably already stops most users from using unsigned add-ons). However, starting with 44 there will be no way to run unsigned extensions in regular Firefox releases.
Could you please try to get the Add-On signed by Mozilla?
Mozilla starts enforcing signatures for Add-Ons ( https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox ). In Firefox 43 it's still possible to run unsigned Add-Ons by changing the entry
xpinstall.signatures.requiredinabout:config(which probably already stops most users from using unsigned add-ons). However, starting with 44 there will be no way to run unsigned extensions in regular Firefox releases.Could you please try to get the Add-On signed by Mozilla?