Allow videos to have sound?

Some ins and outs but this add-on works fantastically for me. Does exactly what it intends to do. Doesn't work with some sites, but that's because of the sites, not because of the extension. Sites where it doesn't work can be whitelisted. Some images are not the size you expect, also not the add-on's fault. What more could you ask?

Works better than the other one, more customizable too

a good replacement for the old amazing "thumbnail zoom plus"

Works great on tumblr links, example : geenstijl.nl/mapje/vrijmibo/
can you make an addon which switch tabs when hoover over them? (like in Tabmixplus..)