Accessibility.disableenumvariant

From MozillaZine Knowledge Base

The title given to this article is incorrect due to technical limitations. The correct title is accessibility.disableenumvariant.

This article describes the preference accessibility.disableenumvariant. To add, delete, or modify this preference, you will need to edit your configuration — do not edit this article.

1 Background
2 Possible values and their effects
- 2.1 True
- 2.2 False
3 First checked in
4 Has an effect in
5 Related preferences
6 Related bugs
7 External links

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Background

In order to allow external applications to track what's happening inside the browser, Mozilla implements an MSAA (Microsoft Active Accessibility) server. This lets outside programs—such as screen readers, voice recognition software, and other accessibility-enhancing applications—track focus changes, listen for events, and read window contents.

IEnumVARIANT is part of the API that allows applications to retrieve a number of accessible objects from the MSAA server at once. It generally improves the performance of communication with external applications.

This preference exists largely for debugging purposes.

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