mirror of
https://github.com/rn10950/RetroZilla.git
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278 lines
12 KiB
HTML
278 lines
12 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"[
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<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" >
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%brandDTD;
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<!ENTITY % platformDTD SYSTEM
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"chrome://browser/locale/help/platformStrings.dtd" >
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%platformDTD;
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]>
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<!--
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Contributors:
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Mark Pilgrim <pilgrim@gmail.com> (original author)
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-->
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>Accessibility Features of &brandFullName;</title>
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<link rel="stylesheet" type="text/css"
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href="chrome://help/skin/helpFileLayout.css"/>
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</head>
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<body>
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<h1>Accessibility Features of &brandFullName;</h1>
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<p>&brandShortName; includes many features to make the browser and web
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content accessible to all users, including those who have low vision, no
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vision, or limited ability to use a keyboard or mouse.</p>
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<div class="contentsBox">In this section:
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<ul>
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<li><a href="#using_a_keyboard">Using a Keyboard</a></li>
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<li><a href="#using_a_mouse">Using a Mouse</a></li>
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<li><a href="#fonts_and_colors">Fonts and Colors</a></li>
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<li><a href="#controlling_web_content">Controlling Web Content</a></li>
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<li><a href="#compatibility_with_assistive_technologies">Compatibility
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with Assistive Technologies</a></li>
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<li><a href="#finding_help_online">Finding Help Online</a></li>
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</ul>
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</div>
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<h2 id="using_a_keyboard">Using a Keyboard</h2>
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<h3 id="keyboard_shortcuts">Keyboard Shortcuts</h3>
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<p>A list of common keyboard shortcuts is available in
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<a href="shortcuts.xhtml">&brandShortName; Keyboard Shortcuts</a>.
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Online, you can find <a target="_blank"
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href="http://www.mozilla.org/support/firefox/keyboard">a comparison
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chart of keyboard shortcuts</a> implemented in &brandShortName;,
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Microsoft Internet Explorer, and Opera.</p>
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<h3 id="always_use_cursor_keys">Always use the cursor keys to navigate within
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webpages</h3>
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<p><a href="prefs.xhtml#accessibility">Always use the cursor keys to navigate
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within webpages</a> allows you to move through web content as if
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you were inside a read-only editor.
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You can use the keyboard to select web content and copy it to the
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clipboard. You can enable this feature by selecting &pref.menuPath;,
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opening the <em>General</em> tab in the <em>Advanced</em> panel,
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and checking the <em>Always use the cursor keys to navigate within webpages
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</em> &pref.singular;.</p>
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<p>You can press <kbd>F7</kbd> at any time to turn this feature on or
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off. When you press <kbd>F7</kbd>, &brandShortName; will
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ask if you really want to turn on this feature. You can disable
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this prompt by selecting <em>Don't show this dialog again.</em></p>
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<h3 id="find_as_you_type">Search for text when I start typing</h3>
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<p><a href="prefs.xhtml#accessibility">Search for text when I start typing</a>
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allows you to quickly navigate to text or hyperlinks in a web page. This
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feature has two modes. Press <abbr title="forward slash"><kbd>/</kbd></abbr>
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and start typing to search all text on the current page, or press
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<abbr title="apostrophe"><kbd>'</kbd></abbr> before your string to search
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hyperlinks only. &brandShortName; will highlight matching text or hyperlinks
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as you type.</p>
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<p>The following keyboard shortcuts control this feature:</p>
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<ul>
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<li>Type more characters to narrow your search. &brandShortName;
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will highlight the next matching hyperlink or text or alert you
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that nothing matched.</li>
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<li>Press &accelKey;+<kbd>G</kbd> or <kbd>F3</kbd> to find the next
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occurrence of your current search string.</li>
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<li>Press &accelKey;+&shiftKey;+<kbd>G</kbd> or &shiftKey;+<kbd>F3</kbd>
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to find the previous occurrence of your current search string.</li>
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<li>Press <kbd>Backspace</kbd> to undo the last character you typed.
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&brandShortName; will back up to the previously highlighted text.</li>
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<li>Press <kbd>Esc</kbd> to cancel a search. You can also cancel
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a search by changing focus, scrolling the page with the mouse or
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keyboard, or simply waiting for the timeout.</li>
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</ul>
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<p>You can change the default behavior of this feature by selecting
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&pref.menuPath;, opening the <em>General</em> tab of the <em>Advanced</em>
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panel, and checking the <em>Search for text when I start typing</em>
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&pref.singular;. If this &pref.singular; is checked, you can start typing at any
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time to auto-start an inline search. By default auto-started searches look
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for all text on the page. You can still explicitly press
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<abbr title="apostrophe"><kbd>'</kbd></abbr> or
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<abbr title="forward slash"><kbd>/</kbd></abbr> to start finding
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in one mode or the other.</p>
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<p>You can use this feature to get to buttons, text boxes and other
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form controls. Search for the text immediately before the form control
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you want and press <kbd>Tab</kbd>. Pressing <kbd>Tab</kbd> automatically
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exits the search and sets focus to the next form field or button
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after the highlighted text.</p>
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<h2 id="using_a_mouse">Using a Mouse</h2>
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<h3 id="common_mouse_shortcuts">Common Mouse Shortcuts</h3>
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<p>A list of common mouse shortcuts is available in
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<a href="mouse_shortcuts.xhtml">&brandShortName; Mouse
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Shortcuts</a>.</p>
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<h2 id="fonts_and_colors">Fonts and Colors</h2>
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<h3 id="overriding_page_fonts">Overriding Page Fonts</h3>
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<p>Some web sites may display text in fonts that are difficult to read,
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and other sites may rely on the browser's default fonts. You can set
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your default fonts by going to &pref.menuPath;, selecting the
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<em>Content</em> panel, and selecting a default font and size in the
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<em>Fonts & Colors</em> section.</p>
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<p>You can specify default fonts for different styles, including serif,
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sans-serif, and monospace by clicking the <em>Advanced</em> button.
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However, many web pages specify their own fonts, so your choices
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will have no effect on such pages. To override the fonts defined by
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such pages, uncheck the <em>Allow pages to choose their own fonts, instead
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of my selections above</em> &pref.singular;.</p>
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<p>Note that some web pages may display incorrectly depending on your
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choice of a default font.</p>
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<h3 id="setting_a_minimum_font_size">Setting a Minimum Font Size</h3>
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<p>Some web sites may display text which is too small to read
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comfortably. To make such pages easier to read, you can set a minimum
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font size. On web pages that try to display text smaller than this
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size, &brandShortName; will enlarge the text to your chosen size.</p>
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<p>To set a minimum font size, go to &pref.menuPath;, select the
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<em>Content</em> panel, and click the <em>Advanced</em> button in the
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<em>Fonts & Colors</em> section. You can specify a minimum font
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size from the dropdown menu.</p>
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<p>Note that some web pages may display incorrectly depending on your
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choice of a minimum font size.</p>
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<h3 id="resizing_page_text">Resizing Page Text</h3>
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<p>You can temporarily change the size of text on any web page in the
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<span class="menuPath">View > Text Size</span> menu. The new
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size will remain in effect until you close your browser window or
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tab, even if you navigate to a different web site.</p>
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<p>The following keyboard shortcuts control text size:</p>
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<ul>
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<li>Press &accelKey;+<kbd><abbr title="plus">+</abbr></kbd> to
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increase the text size. This zooms the text to 120% of its original
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size, then 150%, 200%, 300%, 450%, 675%, 1013%, and 1519%.</li>
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<li>Press &accelKey;+<kbd><abbr title="minus">-</abbr></kbd> to
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decrease the text size. This zooms the text to 90% of its original
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size, then 50%, 33%, 22%, 15%, 10%, 7%, 4%, 3%, 2%, and 1%.</li>
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<li>Press &accelKey;+<kbd>0</kbd> to reset the text size to the web
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page's default size.</li>
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</ul>
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<p>Note that some web pages may display incorrectly if you increase or
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decrease the text size.</p>
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<h3 id="overriding_page_colors">Overriding Page Colors</h3>
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<p>Some web sites may display text and background colors that are
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difficult to read, and other sites may rely on the browser's default
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colors. You can set your default colors by going to &pref.menuPath;,
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selecting the <em>Content</em> panel, and clicking the <em>Colors</em>
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button in the <em>Fonts & Colors</em> section. You can set
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default text and background colors, as well as default colors for
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visited and unvisited hyperlinks. You can also specify whether
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hyperlinks should be underlined.</p>
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<p>However, many web pages set their own colors, so your choices will
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have no effect. To override the colors defined by web pages, uncheck
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the <em>Allow pages to choose their own colors, instead of my
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selections above</em> &pref.singular;.</p>
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<div class="noMac">
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<h3 id="using_a_high_contrast_theme">Using a High Contrast Theme</h3>
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<p>&brandShortName; automatically detects if you are using a High
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Contrast theme and displays everything in your high contrast color
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scheme. This overrides all other other browser or web page
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settings, and it affects the &brandShortName; interface itself (all
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menus, windows, and dialog boxes) and the content of any web page
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you visit.</p>
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<p class="win">To use a High Contrast theme, go to
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<span class="menuPath">Start Menu > Control Panel >
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Accessibility Options > Display</span> and check the
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<em>Use High Contrast</em> &pref.singular;.</p>
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</div>
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<h2 id="controlling_web_content">Controlling Web Content</h2>
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<h3 id="blocking_popup_windows">Blocking Popup Windows</h3>
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<p>See <a href="popup.xhtml">Controlling Popups</a> for information on
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blocking popup windows.</p>
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<h3 id="turning_off_java_applets">Turning Off Java Applets</h3>
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<p>Some web pages provide a rich interactive experience with Java™
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applets. However, some users that rely on keyboard navigation may
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experience problems with some Java applets that automatically set
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focus and do not provide a way to <q>break out</q> of the applet and
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navigate to the rest of the web page. If this is a problem for you,
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you can disable Java by going to &pref.menuPath;, selecting the
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<em>Content</em> and unchecking the <em>Enable Java</em>
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&pref.singular;.</p>
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<h3 id="restricting_javascript_behavior">Restricting JavaScript Behavior</h3>
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<p>You can turn off JavaScript entirely by going to &pref.menuPath;,
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selecting the <em>Content</em> panel, and unchecking <em>Enable
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JavaScript</em>. Some web pages rely on JavaScript and may not work
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properly if JavaScript is disabled.</p>
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<p>If you do not wish to disable JavaScript entirely, there are also a
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number of advanced JavaScript settings to restrict the behavior of
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scripts. Immediately after the <em>Enable JavaScript</em> checkbox,
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click the <em>Advanced</em> button to open the <em>Advanced JavaScript
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Settings</em> window. You can control whether scripts are allowed
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to move or resize existing windows, raise or lower windows, disable or
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replace context menus, hide the status bar, or change status bar
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text.</p>
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<h2 id="compatibility_with_assistive_technologies">Compatibility With
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Assistive Technologies</h2>
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<p>The latest information about compatibility with third-party assistive
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technologies is online at
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<a target="_blank" href="http://www.mozilla.org/access/compatibility">Access
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Mozilla: Compatibility with assistive technologies</a>.</p>
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<h2 id="finding_help_online">Finding Help Online</h2>
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<div class="win">
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<p>Freedom Scientific maintains a number of
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<a target="_blank" href="http://www.freedomscientific.com/fs_support/User_Groups.asp">mailing
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lists for JAWS users</a>.</p>
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<p>GW Micro maintains a number of
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<a target="_blank" href="http://www.gwmicro.com/Support/Email_Lists/">mailing
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lists for Window Eyes users</a>.</p>
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</div>
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<p>You may <span class="win">also</span> post accessibility questions to the
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<a target="_blank" href="http://forums.mozillazine.org/viewforum.php?f=38">&brandShortName;
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Support forum</a>.</p>
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<div class="contentsBox"><em>29 Aug 2006</em></div>
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<p>Copyright © 2003-2007 Contributors to the Mozilla Help Viewer
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Project.</p>
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</body>
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</html>
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