By: Nguyên Lê
Summarize everything in 1 click. Extension helps you summarize for YouTube, Udemy, Coursera, any websites, no paywall, no tracking. Crafted with superior UI/UX design.
Features & Capabilities
User Growth & Download Statistics
- By:
- Nguyên Lê
- Daily users:
- 85
- Rating:
- 4.58 (12)
- Version:
- 2.12.2 Last updated: 2026-05-08
- Version code:
- 6252407
- Creation date:
- 2025-06-01
- Risk:
- Very high risk impact Moderate risk likelihood
- Permissions:
- Content scripts matches:
- m.youtube.com
- www.youtube.com
- chat.openai.com
- chatgpt.com
- *.coursera.org
- *.reddit.com
- *.udemy.com
- *.wikipedia.org
- *.youtube.com
- gemini.google.com
- m.youtube.com
- Size:
- 4.29MB
- Email:
- tr*****@gmail.com
- URLs:
- Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-17
- Compare stats and ranking:
- Summarizerrrr vs Youtube Summary with AI
- Summarizerrrr vs SummYT - Summarize YouTube Videos
- Summarizerrrr vs Youtube Summarizer extension
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
2026-01-10: Version 2.9.3 → 2.10.0
Remove Optional permissions: *://oauth.summarizerrrr.com/*
2026-01-05: Version 2.8.1 → 2.9.1
Remove Permissions: *://oauth.summarizerrrr.com/*
Add Optional permissions: *://oauth.summarizerrrr.com/*
2025-12-31: Version 2.7.8 → 2.8.0
Add Permissions: alarms *://oauth.summarizerrrr.com/*
2025-12-24: Version 2.7.7 → 2.7.8
Add Permissions: identity
2025-11-30: Version 2.5.0 → 2.5.1
Add Permissions: *://*.wikipedia.org/* https://www.wikipedia.org/*
2025-11-23: Version 2.4.3 → 2.5.0
Add Optional permissions: <all_urls>
Remove Optional permissions: https://*/*
2025-11-07: Version 2.3.4 → 2.3.5
Add Permissions: scripting
2025-10-20: Version 2.2.8 → 2.2.9
Remove Permissions: scripting declarativeNetRequest
2025-10-14: Version 2.2.0 → 2.2.7
Add Permissions: activeTab *://api.openai.com/* *://api.groq.com/* *://generativelanguage.googleapis.com/* *://api.anthropic.com/* *://openrouter.ai/* *://api.cerebras.ai/* *://api.deepseek.com/*
2025-10-07: Version 2.1.6 → 2.2.0
Add Permissions: http://127.0.0.1:11434/* http://localhost:11434/* http://localhost:1234/* *://*.youtube.com/* *://*.udemy.com/* *://*.coursera.org/* *://*.reddit.com/* *://*.iconify.design/*
Remove Permissions: <all_urls>
Add Optional permissions: https://*/*
2025-09-12: Version 2.0.0 → 2.0.2
Add Permissions: declarativeNetRequest
2025-09-10: Version 1.6.5 → 2.0.0
Add Permissions: scripting
User Reviews
I just tried this again after noticing that there was an update regarding permission management. Unfortunately, the result is disappointing—maybe even concerning for me.
Steps I took:
Firefox Add-on Page > Permissions & Data > “Access your data for all websites” → Unchecked, but it automatically re-checks after refreshing.
Summarizerrrr > Settings > FAB Domain Control → Set to Allowed Sites Only → youtube.com.
Summarizerrrr > Settings > General > “Access your data for all websites” → Unchecked. It stays unchecked for about 5 seconds, then automatically re-enables after refreshing.
I also tried unchecking both at almost the same time, but both permissions reactivate after a refresh.
As someone who was a victim of a previous add-on on the Firefox Add-on Store that requested “access to all sites” and was open-source, I cannot safely use this add-on. It’s really unfortunate because I genuinely love Summarizerrrr.
I know other trusted add-ons (MAL-Sync comes to mind for now; I’ll update this review with more intrusive ones after I check them) that are actually more functionally invasive than Summarizerrrr. However, they don’t list “Access to all data” under Required Permissions on their add-on page. Instead, they offer an optional “Access to all data” permission, which only activates if you explicitly grant it—and if granted, they can indeed access data on all websites. Why can’t Summarizerrrr adopt the same approach?
by Jo*****, 2025-11-20
Error
can't access property "executeScript", (intermediate value).scripting is undefined
by Kr*****, 2025-11-07
Tried all add-ons with similar functionality and this is clearly the best. Works with common providers through an API and the whole add-on is even open-source!
by so*****, 2025-10-27
Is Summarizerrrr 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.
Summarizerrrr requires a lot of sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- Critical ******* ****** ** *** ********* ******** **** ********** ************ ********** ************* *********** ************** *************** *********** ********* *************** ************** ************** ************ ************* ************ *********** ********* *************
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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.
Summarizerrrr is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Extension Guard
Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard
Secure Your Browser Upgrade to see full risk analysis details
Best Summarizerrrr Alternatives
Here are some Firefox add-ons that are similar to Summarizerrrr:
Youtube Summary with AI
trungpv
SummYT - Summarize YouTube Videos
Jarle Mathiesen
Youtube Summarizer extension
Sanotogi
ZsIRAF's SUMMARIZER
zsiraf
Video Summarizer for YouTube
Jarle Mathiesen
Text Summary Tool
Mcd Menu
SummarIze
AI Labs
Kreators - Page Summarizer
Kreators
YouTube Transcript & Summary
SeardnaSchmid
A Youtube AI Summarizer
Saurabh
Auto Text Summarizer
Ninfa
Summarize On Select
Belagum