
Dictionary Glance by kralharlaus
Instantly look up English word definitions in-page or via a toolbar popup.
You'll need Firefox to use this extension
Extension Metadata
Screenshots

About this extension
Dictionary Lookup (Firefox Addon)
Dictionary Lookup is a minimalist dictionary extension for Firefox.
Click any word on a webpage to get its definition instantly via a tooltip.
🔧 Features
📦 Installation
📂 Source Code
https://github.com/kingharlaus24/Dictionary-Addon
This extension is open-source and MIT licensed.
🛠️ Development
To load the extension temporarily in Firefox:
1. Go to
2. Click “This Firefox”
3. Click “Load Temporary Add-on”
4. Select your
✅ License
MIT License – do what you want, just give credit.
Dictionary Lookup is a minimalist dictionary extension for Firefox.
Click any word on a webpage to get its definition instantly via a tooltip.
🔧 Features
- Instant word lookup via context menu or tooltip.
- Clean, classic book-style UI.
- Works across most websites.
- No data collection.
📦 Installation
- Go to Firefox Addons (link once published).
- Click Add to Firefox.
- Done!
📂 Source Code
https://github.com/kingharlaus24/Dictionary-Addon
This extension is open-source and MIT licensed.
🛠️ Development
To load the extension temporarily in Firefox:
1. Go to
about:debugging
2. Click “This Firefox”
3. Click “Load Temporary Add-on”
4. Select your
manifest.json
file✅ License
MIT License – do what you want, just give credit.
Rate your experience
PermissionsLearn more
This add-on needs to:
- Access your data for all web sites
More information
- Add-on Links
- Version
- 4.1
- Size
- 21.91 kB
- Last updated
- 12 days ago (17 May 2025)
- Related Categories
- Licence
- MIT Licence
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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