It works fine, but only if using English as language in IMDB. The locale defined in the extension is so you are sent to that locale Justwatch. It would be even greater if it could ignore the IMDB locale (in mi case, Spanish ES-ES), because I need to switch to English in IMDB to make it work.

please add option to open in a new tab

Great idea, but pretty useless if you live some where other than the UK. I have to use the US region to get info on where it's streaming here and at that point I have to go to the site in another way. wish there was a way to select your region or maybe just another add on all together.

EDIT: dev has updated the add-on to support different regions. Go to the options of the add on and select your region. I did this by going to IMDB for a certain movie, right-clicking the justwatch icon in the address bar, and selecting "manage extensions".

Thanks for the update, developer!