Translation of Ohrstöpsel

Can you translate: Are you using the firefox browser? Install this tool in your browser window. The ones I suggested the other day are the most useful ones, because we would use it for generic terms which differ from Spanish.
The snow can be compared with white veil. Here in Davos, there is lots of new snow, so fresh and powdery snow, which is great for skiing. One needs to be careful from unexpected avalanches.
I've chosen a subject but for now I take a lot of art and language courses. Thank you for your tips! They helped me a lot. My uncle is a music teacher, but my father studied economics.