YouTube Summarizer with Gemini
A small Firefox extension for getting the gist of a YouTube video without opening another tab.
Why I made it
YouTube is very good at making everything look worth clicking. Sometimes I just want to know whether a video is actually useful before I give it twenty minutes. Copying links into another tab was annoying enough that it felt worth turning into a button.
What it does
The extension opens Gemini in Firefox's sidebar with the current video ready to summarize. It is not complicated, but it removes a tiny bit of friction from a thing I do often.
Details
- Summarize the video you are currently watching
- Right-click a thumbnail and summarize it before opening the video
- Use the Firefox sidebar so the summary stays next to YouTube
- Optionally mark summarized videos as watched to keep the feed cleaner
- Change the prompt template in the options page
How to Use
- Install the extension from the Firefox Add-ons Store
- Navigate to any YouTube video page or page with video thumbnails
- Summarize using either:
- Click the extension icon in the address bar (on video pages)
- Right-click any video thumbnail and select "Summarize with Gemini"
Try It Out
Install from Firefox Add-ons Store
The extension is completely free. You just need to sign into your Google account to use Gemini.
Source Code
You can find the source code for the YouTube Summarizer with Gemini on my GitHub repository.