SEP+ by Andrew Shen
Improve the Stanford Encyclopedia of Philosophy reading experience
Available on Firefox for Android™Available on Firefox for Android™
Scan the QR code to open this extension in Firefox for Android
Extension Metadata
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About this extension
SEP+ is a browser extension that gives the Stanford Encyclopedia of Philosophy a modern, distraction-free reading experience.
Your highlights and notes are stored locally in your browser. Export a backup before uninstalling.
SEP+ only has access to plato.stanford.edu and will never serve ads or collect user data.
- Redesigned typography, layout, header, homepage, and search for better readability
- Light, dark, and system themes
- Persistent sidebar with the entry's table of contents and site navigation
- Command palette to instantly search and jump to any entry
- Footnotes and bibliography citations appear in hover previews, so you never lose your place
- Highlight passages or add notes, and export them anytime as JSON or Markdown.
- Print-optimized articles
Your highlights and notes are stored locally in your browser. Export a backup before uninstalling.
SEP+ only has access to plato.stanford.edu and will never serve ads or collect user data.
Rated 5 by 1 reviewer
Permissions and data
Required permissions:
- Access your data for plato.stanford.edu
Optional permissions:
- Access your data for plato.stanford.edu
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 2.0.1
- Size
- 277.78 KB
- Last updated
- 11 days ago (Nov 1, 2026)
- Related Categories
- License
- MIT License
- Version History
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