# Accessibility Internals

## Global accessibility mode:

Native accessibility API support
Allows Chrome to be controlled via native accessibility APIs specific to this platform.
Web accessibility
Accessibility support is enabled for web content.
Text metrics
Enables support for querying line breaks and the bounding box of arbitrary character ranges.
Screen reader support
Exposes accessibility APIs typically needed only by screen readers.
HTML
Exposes HTML tag names and attributes via accessibility APIs.

## Options:

Internal
Show internal accessibility tree instead of native

Accessibility features in Chrome are off by default and enabled automatically on-demand. Changes to this page only take effect until the next time Chrome is restarted.

To force accessibility to be enabled at launch, run Chrome with this command-line flag:

    --force-renderer-accessibility

To disable accessibility, run Chrome with this flag:

    --disable-renderer-accessibility

## Pages: