Compatibility/Software for using MediaWiki

Grade A
All current major web browsers are compatible with most versions of MediaWiki. "Grade A" functionality is maintained for the following browser requirements:


 * Internet Explorer 9+
 * Firefox 4+
 * Safari 5.0+
 * Opera 11.6+
 * Chrome 17+

However, no version of Internet Explorer, and only recent versions of Chrom(e|ium) and Firefox, are fully supported for all features (like VisualEditor).

Grade B
Basic compatibility is maintained for legacy versions of web browsers until they fall to a sufficiently low level of utilization (typically under 0.1%). In particular, compatibility is currently maintained for:


 * Internet Explorer 6+
 * Firefox 2.0+
 * Safari 3.0+
 * Opera 10.0+
 * Chrome 9+

Browsers which are not explicitly marked as incompatible are often generally compatible. Support is not guaranteed for old non-standards compatible browsers and issues with those browsers might not be resolved. Security vulnerabilities affecting any browser will be addressed if possible.

Mobile browsers
Mobile view is supported by the MobileFrontend extension.

Grade A
"Grade A" functionality means full support, including JavaScript features. All current major mobile web browsers are compatible with most versions of MediaWiki. "Grade A" functionality is maintained for the following browsers:
 * Mobile Safari 5+ (that includes Chrome for iOS since it uses Safari's engine)
 * Android Browser 2.3+ (image uploads in 2.3, everything supported in 4+)
 * Chrome for Android 18+
 * Firefox for Android, latest version
 * IE Mobile 9+ (no editing and image uploads in 9.0, everything supported in 10+)
 * Blackberry Webkit 7+

Browsers from this list are tested as often as possible and bug fixes for them are a priority.

Grade B
"Grade B" functionality means basic reading and navigation. A web browser is usually degraded to grade B when it is used by less than 0.5% of users. This level of compatibility is currently maintained for:
 * lower versions of browsers in Grade A
 * Opera Mini 4+
 * NetFront 3+
 * Ovi Browser 2+
 * Nokia Browser 7+

Browsers from this list are not tested on a regular basis, but user-reported bugs for them are accepted.

CSS
MediaWiki is compatible with user agents which do not process CSS3 markup. Some additional features are available to browsers which can process these styles.

JavaScript
MediaWiki is accessible to user agents which do not process JavaScript. MediaWiki degrades gracefully and all essential functionality works without JavaScript, although some things might be less convenient.

Text-only browsers
MediaWiki is accessible to text-only user agents such as Lynx, and to interpreters such as JAWS. Some functionality is reduced.

Note that older text-only browsers like Lynx are not representative of text-to-speech assistive tools like JAWS and other screen readers, which tie into browsers such as Internet Explorer and Firefox through their accessibility interfaces and make use of CSS styles, dynamic JavaScript, etc.