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IRA — Interface for Responsive Access

IRA is a lightweight Firefox add-on that lets you adapt how a web page is presented based on your current goal.

Instead of guessing intent or modifying content, IRA gives you explicit control over how information is emphasized, using simple, transparent CSS adjustments.

Reading modes

Skim
Highlights structure and headings while reducing visual noise. Useful for quickly understanding the shape of a page or scanning documentation.

Debug
Emphasizes code blocks, technical signals, and errors. Designed for reading developer documentation or troubleshooting.

Learn
Improves readability through spacing, line length, and gentle hierarchy. Supports slower, low-fatigue reading.

You can switch modes at any time using the toolbar menu, or turn IRA off instantly.

Design principles

No machine learning

No tracking or analytics

No content rewriting or summarization

CSS-only presentation changes

User-declared intent, not automated assumptions

IRA adapts presentation, not meaning.

Privacy

IRA does not collect, transmit, or store any personal data.
All behavior happens locally in your browser.