Getting Started

An introduction to using AInspector WCAG for web accessibility evaluation

How does AInspector WCAG work?

When AInspector WCAG is loaded into the sidebar panel of Firefox, it automatically evaluates the current page and each subsequent page that you load into the content area of the browser. This applies to the current tab only.

When you open new tabs, by default the sidebar stays open and will evaluate the new page (note: this is different from AInspector Sidebar). 

When AInspector WCAG is closed, it becomes inactive, and no evaluations are performed.

Launching the sidebar

There are three methods for opening and closing AInspector Sidebar in the current browser tab:

  • Click the ‘AI’ button in the Firefox toolbar
  • Use the Toggle sidebar keyboard shortcut: Win: CTRL+SHIFT+U / Mac: CMD+SHIFT+U
  • From the Firefox main menu, choose View : Sidebar : AInspector WCAG

Note: When you first install AInspector WCAG, the ‘AI’ toolbar button is placed in the navigation toolbar of Firefox. If you have many buttons there already, it may not be immediately apparent or even visible.

To reposition or remove the button from the toolbar, choose View : Toolbars : Customize...

Preferences dialog

The Preferences dialog contains important settings for evaluation parameters and how results are displayed. It contains two panels:

In the General section, you can:

  • Customize the Views menu
  • Choose how the Rerun Evaluation button functions


In the Evaluation panel, you can:

  • Choose the Ruleset
  • Choose whether Pass and N/A results are displayed

Screen reader support

AInspector WCAG has built-in support for the interactive data tables using ARIA grid roles.  

For more information on screen reader support, see the Screen Reader Users guide.

Keyboard shortcuts

Toggle sidebar
Open Views menu
Win: ALT+A / Mac: CTRL+A
Back one level
Back to Summary view
Open Preferences dialog
Win: CTRL+. / Mac: CMD+.