Movie Meter will show you IMDb movie rating and it's popularity on many movie-related pages. For TV Shows you'll see Next / Previous episode info. Doesn't work on your favorite movie page? Contact me and I will add it - if possible (page must contain movie name in English or IMDb link). Top features:

movie rating and popularity from IMDb
next / previous episode date from TVMAZE.com
additional movie information
notification about new episode just mark TV show as favorite and you will get notification when new episode is available
favorite movies synchronization using Firefox Sync. between devices
auto-hide when video detected
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Recently added features:

The list of changes in last versions is available here

Known issues:

movie not found / wrong movie found - since there is no "official" integration with target pages or IMDb, I cannot guarantee 100% correct results (but in majority of cases it works perfectly)
movie rating is a bit different than on IMDb - the ratings are updated only every few days / weeks, for a brand new movies, ratings tend to change a lot

Permissions:

permission "Access your data for all websites" is used to automatically insert the Movie Meter into movie related pages - the list of pages is ever-growing. Current list is always available on the "Introduction page".
permission "Display notifications to you" is used to show you notification about new episode.

Credits:

Tags: imdb, date, description, episode, gauge, graph, imdb, info, meter, movie, movies, netflix, omdb, rating, series, shows, tv, tv show, video, visual, votes

Developer response