When I right click on a film file the Subtitles 1.3 option doesn't appear. What's wrong? I run a 64bit, Windows 10 laptop.
I've tested the extension and it works quite well. It searches based on the file name and the headers of the file, but it doesn't download it automatically, instead a new browser window with search results will open from where you have to click next to the corresponding file name and download the zipped archive. You have to extract the archive and place the subtitle in the same folder where movie is located.
Download the latest version from the following link: http://www.subtitles4free.net/auto-search.htm