Chat AI — Add Emotion Images by js

A Firefox extension that lets you display characters alongside conversations with ChatGPT, Gemini, DeepSeek, and other AI services.


Display character images next to AI conversations.

Enjoy your AI conversations together with your favorite character.


Register character images of your choice and display them alongside your AI conversations.

Registered characters can be selected and used from the settings.

You can choose a different character for ChatGPT, Gemini, and DeepSeek.


You can change the displayed expression image based on emotion tags included in AI responses.

The extension supports 11 standard emotion tags by default.

You can also add your own custom emotions and detection tags separately from the standard emotion tags.

For example, you can register a custom tag such as [emotion: jealous] and display the image registered for that custom emotion when the tag appears in an AI response.

Emotion tags are output by the AI. You can instruct the AI to output emotion tags through custom instructions or similar settings, but the AI may not always follow the instructions exactly.

• Supports ChatGPT / Gemini / DeepSeek
• Enable / disable each AI service individually
• Select a different character for each AI service
• Add and edit characters
• Register multiple characters and switch between them from the settings
• Supports 11 standard emotion tags
• Supports custom emotions and custom detection tags
• Supports PNG / JPEG / WebP images
• Adjust the avatar size from 64 to 256px
• Perform the first emotion tag check 3 seconds after the response
• Enable / disable the second emotion tag check
• Set the delay for the second emotion tag check
• Supports scrolling conversations in DeepSeek

• ChatGPT
• Gemini
• DeepSeek

※ This extension is for Firefox.