To zoom pages by default in Firefox, open the about:config page via the location/address bar, and change the value of layout.css.devPixelsPerPx to fx 1.2, to zoom in 120% on all pages by default. This will also increase the size of icons and tabs, but this way you don't need an add-on for larger text on all web pages by default.
Here are my notes on copying the content of an old storage hard drive over to a new. The label of the old hard drive is "archive" and the label of the new hard drive is "archive_2017". It is assumed that your old hard drive will be mounted at "/archive".
Since you can't change mp3 "Open with" "Default application" from Audacious to fx VLC under Properties in Ubuntu 16.04, and it is annoying to get your playlist deleted every time you open a single mp3-file, here is a work-around.
Go to File > Settings > Playlist and uncheck "Clear the playlist when opening files".