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&brandShortName; includes many features to make the browser and web content accessible to all users, including those who have low vision, no vision, or limited ability to use a keyboard or mouse.
A list of common keyboard shortcuts is available in &brandShortName; Keyboard Shortcuts. Online, you can find a comparison chart of keyboard shortcuts implemented in &brandShortName;, Microsoft Internet Explorer, and Opera.
Always use the cursor keys to navigate within webpages allows you to move through web content as if you were inside a read-only editor. You can use the keyboard to select web content and copy it to the clipboard. You can enable this feature by selecting &pref.menuPath;, opening the General tab in the Advanced panel, and ticking the Always use the cursor keys to navigate within webpages &pref.singular;.
You can press F7 at any time to turn this feature on or off. When you press F7, &brandShortName; will ask if you really want to turn on this feature. You can disable this prompt by selecting Don't show this dialogue again.
Search for text when I start typing allows you to quickly navigate to text or hyperlinks in a web page. This feature has two modes. Press / and start typing to search all text on the current page, or press ' before your string to search hyperlinks only. &brandShortName; will highlight matching text or hyperlinks as you type.
The following keyboard shortcuts control this feature:
You can change the default behaviour of this feature by selecting &pref.menuPath;, opening the General tab of the Advanced panel, and ticking the Search for text when I start typing &pref.singular;. If this option is ticked, you can start typing at any time to auto-start an inline search. By default auto-started searches look for all text on the page. You can still explicitly press ' or / to start finding in one mode or the other.
You can use this feature to get to buttons, text boxes and other form controls. Search for the text immediately before the form control you want and press Tab. Pressing Tab automatically exits the search and sets focus to the next form field or button after the highlighted text.
A list of common mouse shortcuts is available in &brandShortName; Mouse Shortcuts.
Some web sites may display text in fonts that are difficult to read, and other sites may rely on the browser's default fonts. You can set your default fonts by going to &pref.menuPath;, selecting the Content panel, and selecting a default font and size in the Fonts & Colours section.
You can specify default fonts for different styles, including serif, sans-serif, and monospace by clicking the Advanced button. However, many web pages specify their own fonts, so your choices will have no effect on such pages. To override the fonts defined by such pages, untick the Allow pages to choose their own fonts, instead of my selections above &pref.singular;.
Note that some web pages may display incorrectly depending on your choice of a default font.
Some web sites may display text which is too small to read comfortably. To make such pages easier to read, you can set a minimum font size. On web pages that try to display text smaller than this size, &brandShortName; will enlarge the text to your chosen size.
To set a minimum font size, go to &pref.menuPath;, select the Content panel, and click the Advanced button in the Fonts & Colours section. You can specify a minimum font size from the dropdown menu.
Note that some web pages may display incorrectly depending on your choice of a minimum font size.
You can temporarily change the size of text on any web page in the
menu. The new size will remain in effect until you close your browser window or tab, even if you navigate to a different web site.The following keyboard shortcuts control text size:
Note that some web pages may display incorrectly if you increase or decrease the text size.
Some web sites may display text and background colours that are difficult to read, and other sites may rely on the browser's default colours. You can set your default colours by going to &pref.menuPath;, selecting the Content panel, and clicking the Colours button in the Fonts & Colours section. You can set default text and background colours, as well as default colours for visited and unvisited hyperlinks. You can also specify whether hyperlinks should be underlined.
However, many web pages set their own colours, so your choices will have no effect. To override the colours defined by web pages, untick the Allow pages to choose their own colours, instead of my selections above &pref.singular;.
&brandShortName; automatically detects if you are using a High Contrast theme and displays everything in your high contrast colour scheme. This overrides all other other browser or web page settings, and it affects the &brandShortName; interface itself (all menus, windows, and dialogue boxes) and the content of any web page you visit.
To use a High Contrast theme, go to
and tick the Use High Contrast &pref.singular;.See Controlling Popups for information on blocking popup windows.
Some web pages provide a rich interactive experience with Java™
applets. However, some users that rely on keyboard navigation may
experience problems with some Java applets that automatically set
focus and do not provide a way to break out
of the applet and
navigate to the rest of the web page. If this is a problem for you,
you can disable Java by going to &pref.menuPath;, selecting the
Content and unticking the Enable Java
&pref.singular;.
You can turn off JavaScript entirely by going to &pref.menuPath;, selecting the Content panel, and unticking Enable JavaScript. Some web pages rely on JavaScript and may not work properly if JavaScript is disabled.
If you do not wish to disable JavaScript entirely, there are also a number of advanced JavaScript settings to restrict the behaviour of scripts. Immediately after the Enable JavaScript tickbox, click the Advanced button to open the Advanced JavaScript Settings window. You can control whether scripts are allowed to move or resize existing windows, raise or lower windows, disable or replace context menus, hide the status bar, or change status bar text.
The latest information about compatibility with third-party assistive technologies is online at Access Mozilla: Compatibility with assistive technologies.
Freedom Scientific maintains a number of mailing lists for JAWS users.
GW Micro maintains a number of mailing lists for Window Eyes users.
You may also post accessibility questions to the &brandShortName; Support forum.
Copyright © 2003-2006 Contributors to the Mozilla Help Viewer Project.