Fulfills need to save snippets of text for pasting. Particularly useful for pasting € sign not available at all in Firefox and TBird using a Surface Pro tablet (i.e. Alt0128 doesn't work). Small complaint that addon doesn't work for the search bar.
The Mozilla team is rolling out a fix for Firefox which should resolve the certificate issue affecting all add-ons. See their Twitter feed for details: https://twitter.com/mozamo/status/1124627930301255680