browser2kodi от Hugo Coto Florez

Play what you're looking at on Kodi.

• Right-click a picture, video, song or link: Send to Kodi or Queue on Kodi.
• Toolbar button: send the current page, e.g. a YouTube video.

Setup: enter Kodi's address in the options, and in Kodi enable Settings › Services › Control › Allow remote control via HTTP. YouTube needs Kodi's YouTube add-on; other video sites need SendToKodi.

Pictures without a file extension go through the wsrv.nl image proxy. You can turn this off in the options.

Source: https://github.com/hugoocoto/browser2kodi