Accessibility.disablecache

From MozillaZine Knowledge Base

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

This article describes the preference accessibility.disablecache. 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

[edit]

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.

In its implementation, Mozilla keeps a hash table (cache) of every object it makes available via the MSAA server. This cache can help prevent crashes due to other applications improperly using the MSAA server, and may also speed up certain interactions with other accessibility software.

This preference exists largely for debugging purposes.

[edit]