Snap Links just stopped working on my FF63. Found I'm running version 3.1.1.3. Now I can see v3.1.4 released in Nov.2018. Does anyone know how to install new version? Snap Links addon page just installs v 3.1.1.3 and no way to update. What the fk???

Updated review: Manually installed v3.1.3 and now it works again. Fantastic!!