Please capitalize where necessary: i installed the plug-in, but i can't find it in my web browser.
A: I installed the plug-in, but I can't find it in my web browser.

Please capitalize where necessary: there were (and still are) three farm leased by king's yeomen and the private owners ground is 29 marks.
A: There were (and still are) three farm leased by King's yeomen and the private owners ground is 29 marks.

Please capitalize where necessary: perfect for occasions. as a headdress - keeping sun or snow, wind, sand and dust - out of eyes, face and neck
A: Perfect for occasions. as a headdress - keeping sun or snow, wind, sand and dust - out of eyes, face and neck

Please capitalize where necessary: il paradiso is a 13 meter long sailing yacht and is available for hire for up to six people available.
A:
Il Paradiso is a 13 Meter long sailing yacht and is available for hire for up to six people available.