Youtube Comment Cloud Firefox Add-On

Martin Brinkmann
Apr 11, 2009
Updated • Mar 22, 2012
Firefox, Firefox add-ons, Youtube

Comments can be very useful wherever they are allowed. To many comments on the other hand make it complicated to get a good overview of the opinions in the comments especially if comments are listed on multiple pages.

Comments at the popular video portal Youtube can get out of hand in both ways. It is not uncommon to find videos with hundreds or even thousands of comments on the video portal.

Opinion Cloud tries to bring order into chaos by creating a cloud of positive and negative opinions about the individual video. The cloud resembles a tag cloud known from web 2.0 websites and is basically the same deal. The tool will extract words from comments and display them in the cloud sorting them by positive and negative comments. A summary is shown at the top displaying the percentage of positive and negative opinions.


Words that have been used more frequently will be shown in a bigger font size to make it easier to weight the opinions. Each word that is listed in the cloud is at the same time a link to all comments that contain it. A click will display the comments on the same page with virtually no loading time.

This add-on implements opinion summarization for Web comments on YouTube and Flickr. Popular videos/photos often get up to thousands of comments and in order to get an idea about the crowd's overall opinion one has to read all of them, which is of course impractical. The OpinionCloud summarization helps to retrieve this important piece of information by generating an opinion word cloud for a given set of comments.

Opinion Cloud is an add-on for the web browser Firefox that helps users, video creators and marketers on the Youtube video platform.

Update: Opinion Cloud has been last updated in 2010, which indicates that the project has either been abandoned completely by its developer, or that it has been put on ice. It is likely that users of the add-on will run into compatibility issues eventually.


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  1. hhjkh said on November 9, 2009 at 12:18 am

    Youtube comments are crap. The more frequent words would be “lol” “xd” “wtf ” and profanities, regardless what the video is about.

  2. Keule said on April 13, 2009 at 6:24 pm

    This is extremly useful for many video artists around the tube. But I cannot agree on the non-existent loading times. Some videos need around 2-3 seconds to display the whole page.

    1. hhjkh said on November 9, 2009 at 12:19 am

      No… No, it is not.

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