Try xHeader →
Latest Version:
1.0.3 Updated:
2 days ago
Ready to install?
Sonoyo is available to install from Firefox Add-ons Store and for download from this page.
1
Daily users
No ratings yet
0
Total downloads
Available versions
You can find the current and older versions of Sonoyo here. You can download the archived versions or inspect their source codes.
As a free user, you can download up to 3 latest versions.
Upgrade to download older versions
| Version | Download | Size | Download count | Timestamp |
|---|---|---|---|---|
| 1.0.3 | XPI · ZIP · Source code | 1.88MB | 0 | 2026-08-19 |
| 1.0.0 | XPI · ZIP · Source code | 1.87MB | 0 | 2026-08-14 |
1.0.3 1.88MB
1.0.0 1.87MB
Install XPI file
An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.
- Simply drag-and-drop the XPI into Firefox to install the add-on.
Install ZIP file
- Download the Sonoyo ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File

- Select the Sonoyo ZIP file from step 1. Sonoyo is now installed on your browser.
Best Sonoyo Alternatives
Here are some Firefox add-ons that are similar to Sonoyo:
AI Article Summarizer by Bonn
Andrea Bonacci
gyoza — AI companion for the browser
gyoza
Chat GPT for Google
Chat GPT for Google
Lumen for Gemini
Christian Smmc
Gemini for Google
tudoujun
Page Summarizer
konoplev
AI Web Summarizer
gggentii
ToS Summarizer AI
Geralt4
ChatGPT in Google Search
KenamDev
chatGPT for search
Game Engine
Summarize and Translate with Gemini
Sadao Hiratsuka
AI Text Summarizer for Notes
Rene