コメント増量 is a Firefox extension designed to enhance user interaction on Niconico Douga by increasing the number of displayed comments. This tool allows users to view all comments in a browser interface, making it easier to engage with content. Additionally, it supports saving loaded comments as JSON files, enabling users to keep a record of their viewing experience. This functionality is particularly useful for those who want to analyze or revisit discussions surrounding their favorite videos.

The extension is subscription-based and falls under the multimedia category, specifically graphic and design. Users should be mindful that processing a large volume of comments may lead to performance issues depending on their computer's specifications. The extension utilizes a comment rendering library, ensuring a smoother experience when navigating through comments. Overall, コメント増量 serves as a valuable tool for avid Niconico users looking to enrich their viewing experience.