Gemini History Manager by Invictus Navarchus

Automatically captures and locally stores your Gemini chat history. Equipped with search and visualization tools.

5 (1 reviews)

19 Users

You'll need Firefox to use this extension

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About this extension

Tired of losing track of your valuable Google Gemini conversations or struggling to find past interactions? This extension automatically captures key details about the start of every new Gemini chat and securely stores them locally on your computer.

Key Features:

Captures Comprehensive Chat Data: Automatically captures model details (e.g., "2.5 Pro," "Veo 2"), initial prompts, chat URL, account name, account email, current Gemini plan, custom Gem info, and attached file names.
Powerful Dashboard Interface: Dive into your chat history with an intuitive dashboard. Easily view all conversations, search by title or prompt content, filter by model or date range, and sort your history to find exactly what you need in seconds.
Insightful Visualizations & Statistics: Understand your Gemini usage patterns with clear charts for model distribution and conversation activity over time. Get key stats like total conversations and most-used models at a glance.
User-Friendly Experience: Enjoy a quick-access popup for an immediate overview and essential actions, plus choose between Light and Dark themes for optimal viewing comfort.
Complete Data Control: You own your data. Export your chat history to JSON for backup or migration. Import from previous exports seamlessly—new entries are merged, and duplicates (identified by existing chat URLs) are automatically skipped. Clear your data whenever you choose.

Developer comments

I built this extension back when Gemini didn’t yet have a search feature. All I wanted was a simple way to revisit past chats so I wouldn’t have to start a new one if it already existed. Especially for Deep Research, which can take up to 30 minutes to complete. When the search feature finally rolled out on May 19, 2025, the extension had already evolved into something much more than a basic chat history archive. I’m publishing it here in case it proves useful to others as well.

Limitations:

Currently, Gemini History Manager focuses on capturing the initial prompt and associated metadata for each new chat. It does not capture the full back-and-forth conversation, such as Gemini's responses or your follow-up prompts. This feature may be considered in future updates.

Rated 5 by 1 reviewer

Release notes for 0.18.8

🚀 What's new in v0.18.8

🐛 Bug Fixes

Fixed the outdated account plan detection algorithm

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