Glasp Web Highlighter: PDF & Web Highlight Firefox

Glasp Web Highlighter: PDF & Web Highlight

By: Glasp Add-on
AI-powered Web Highlighter for Websites, PDF, and YouTube videos. YouTube Summary with ChatGPT, Claude, and Gemini.

Features & Capabilities

AI-powered Web Highlighter for Websites, PDF, and YouTube videos. YouTube Summary with ChatGPT, Claude, and Gemini.

Highlight PDF and Websites, save it for later, and share it with everyone.

Glasp is a PDF & Web highlighter that helps you collect and organize your favorite quotes and thoughts from the web. You can also access other like-minded people’s learning and build your AI clone from your highlights and notes.

"Glasp Web Highlighter: PDF & Web Highlight" is a free Firefox add-on that lets you quickly highlight websites and PDF files with colored highlighting options, which are then automatically curated to your Glasp homepage. These highlights can then be tagged, searched for, linked to, and shared on a variety of other platforms, including Twitter, Teams, and Slack. YouTube, web article, and PDF summarization functions are powered by AI models such as ChatGPT (OpenAI), Claude (Anthropic), Mistral AI and Gemini.

You can see all the highlights and notes in the sidebar on the web and PDF, and clicking each highlight takes you to the highlighted place in the web page or inside the PDF. Also, you can tag the web page and PDF and see what other people highlighted in the website or PDF from the sidebar. With one click, the content you’ve collected appears across all your devices!

Check out your highlights on your Glasp page or in the original source, where they remain highlighted. Discover more content on the Glasp website and connect with other like-minded readers who share your interests. By following your friends or like-minded people, you will discover insightful and thought-provoking content that deepen your knowledge and understanding.

Highlight. Annotate. Save. Share. Repeat. Make an impact, become a knowledge curator.

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Key Features: ✅ Web & PDF highlight with multiple colors: 🔴 🟡 🟢 🔵 ✅ Highlight & annotate on YouTube videos: 🎥 ✅ AI-powered summary based on annotations: 💎 ✅ Highlight & annotate on PDF files: ✍ ✅ Highlight & annotate on Images: 🖼 ✅ Make notes on the highlights: ✍ ✅ Tag and link-to your highlights: 🏷 🔗 ✅ Copy-and-paste all the highlights and notes with meta data into your note-taking app in one click 📝 ✅ Discover more useful content from other curators: 🤝 ✅ Sync all your highlights and notes from Kindle eBooks: 📚 ✅ YouTube Summary with ChatGPT and Claude: ❤ ✅ Summarize YouTube videos, web articles, and PDF: ❤ ✅ Generate stunning quoteshots from webpages 🎨

User Growth & Download Statistics

Manifest V3 Add-on
By:
Glasp
Daily users:
1
Rating:
5.00
(1)
Version:
2.1.1 Last updated: 2026-08-02
Version code:
6383957
Creation date:
2026-07-30
Risk:
Very high risk impact High risk likelihood
Permissions:
Host permissions:
  • *://*/*
Content scripts matches:
  • glasp.co
  • glasp.ai
  • chat.openai.com
  • chatgpt.com
  • chat.com
  • claude.ai
  • chat.mistral.ai
  • gemini.google.com
  • aistudio.google.com
  • grok.com
  • See more
Size:
1.68MB
Email:
*****@glasp.co
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-08-04
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Glasp
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/glasp-web-highlighter/
Email:
*****@glasp.co
Website:
https://glasp.co

User Reviews

Great Firefox Add-on!
by Ka*****, 2026-08-02
View all user reviews ›

Is Glasp Web Highlighter: PDF & Web Highlight 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.

Glasp Web Highlighter: PDF & Web Highlight 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.
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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.

Glasp Web Highlighter: PDF & Web Highlight is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
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