Make folder path selectable in FireFox

Make the folder name and the folder path selectable in FireFox, as discussed here: https://pulse-forum.ind.ie/t/how-can-the-folder-path-be-changed/1153/6

Add the assets to the commit
Add me to the contributors
Add me to the contributors in the index.html
Merge branch 'pr/875'

* pr/875:
  Make folder path selectable in FireFox