By: Sadao Hiratsuka
Summarize and translate web pages using Gemini or OpenAI-compatible APIs.
Features & Capabilities
User Growth & Download Statistics
- By:
- Sadao Hiratsuka
- Daily users:
- 1,741
- Rating:
- 4.62 (45)
- Version:
- 1.8.9 Last updated: 2026-06-28
- Version code:
- 6327962
- Creation date:
- 2024-09-27
- Risk:
- Very low risk impact Moderate risk likelihood
- Permissions:
- Size:
- 126.05KB
- Email:
- sh*****@pop01.odn.ne.jp
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-07-06
- Compare stats and ranking:
- Summarize and Translate with Gemini vs Gemini Summarizer & Q&A
- Summarize and Translate with Gemini vs Summarize with Gemini
- Summarize and Translate with Gemini vs Gemini Web Summarizer
Ranking
Other platforms
For Developers
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Permission Change History
2026-05-02: Version 1.7.9 → 1.8.0
Add Optional host permissions: https://*/* http://*/*
2025-02-24: Version 1.5.11 → 1.6.0
Add Permissions: contextMenus
User Reviews
Pros
- High-quality summarization and translation.
- Supports summarizing pages and YouTube transcripts/subtitles.
- Rich customization via custom prompts and prompt options.
- Fast, context-aware summaries on the current page.
Cons
- Requires Gemini API key; setup can be confusing and key sources/instructions are inconsistent.
- Custom actions/prompts do not always work reliably and documentation is lacking.
- Mobile UI issues such as content overflow with large fonts and hard-to-read input in dark mode.
- Post-update reliability issues (e.g., video summarization can break; occasional 403/API problems) and guidance gaps.
Recent reviews
I love this extension! You have to use Google AI Studio to get your free API key, but once you have that set up, you're good to go. The extension will summarize web pages *and* YouTube videos that have transcripts ready. Huge time-saver.
by Bi*****, 2026-02-20
by p1*****, 2026-02-14
Summarization is great and so is translation. With the right prompt this extension is so so much better. The free tier of Gemini 2.5 Thinking on is good enough for concise and understandable summarization and translation.
Feature Requests:
1. Adding the option to read aloud the summarization in the extension pop out would be great.
2. Adding the ability to ask follow up questions in the extension pop out would be so much more convenient than having to open the summary in a new window.
3. Allowing the summary to save in cache so that it doesn't go away when the user clicks away from the tab for a prolonged period of time, causing the user to have to regenerate the summary.
My customized prompt, that is great in my opinion, for those who want a better summarization:
Role: Act as a professional editor and expert translator.
Task: > 1. Translate: If the provided text is not in English, translate the core meaning accurately into English, maintaining a professional tone.
2. Summarize: Create a comprehensive summary that captures the main thesis, supporting arguments, and the author's intent.
3. Structure: > * Executive Overview: A 2-3 sentence paragraph explaining the "big picture."
Key Themes: Use 3-4 subheadings to break down the primary sections or arguments of the text.
TL;DR: At the very bottom, provide a section titled "Critical Bullet Points" containing the 5 most essential takeaways.
Constraints: > * Avoid corporate jargon or "filler" phrases.
Ensure the translation feels natural, not literal.
Maintain the original sentiment and urgency of the text.
by vo*****, 2026-01-12
Is Summarize and Translate with Gemini Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
Summarize and Translate with Gemini does not require any sensitive permissions.
Risk impact analysis details
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
Summarize and Translate with Gemini is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- High This extension was recently updated in the past month. New updates may not be stable or safe.
- High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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