Extensions

You can see what extensions have been enabled on your wiki at (with your wiki name instead of "example"):

https://example.miraheze.org/wiki/Special:Version

The list of already installed extensions on Miraheze (this does not mean that you can't request new ones!):
 * https://github.com/miraheze/mediawiki/tree/REL1_27/extensions

Changes to extension are documented on:

https://phabricator.miraheze.org/

Extensions FAQ
Mediawiki
 * https://www.mediawiki.org/wiki/Extensions_FAQ

Extensions enabled by default

 * Extension:AbuseFilter
 * Extension:AntiSpoof
 * Extension:Babel
 * Extension:CentralAuth
 * Extension:CheckUser
 * Extension:Cite
 * Extension:CiteThisPage
 * Extension:cldr
 * Extension:CodeEditor
 * Extension:ConfirmEdit/ReCaptchaNoCaptcha
 * Extension:ConfirmEdit
 * Extension:Disambiguator
 * Extension:EasyTimeline
 * Extension:Echo
 * Extension:Gadgets
 * Extension:GlobalBlocking
 * Extension:GlobalCssJs
 * Extension:Interwiki
 * Extension:MassMessage
 * Extension:Math
 * Extension:MirahezeMagic
 * Extension:NativeSvgHandler
 * Extension:Nuke
 * Extension:OAuth
 * Extension:ParserFunctions
 * Extension:Poem
 * Extension:Renameuser
 * Extension:Scribunto
 * Extension:SiteMatrix
 * Extension:Thanks
 * Extension:TitleBlacklist
 * Extension:UrlShortener
 * Extension:WikiEditor

Extension List
Last Updated On 2016-09-23 AbuseFilter AccessControl AddHTMLMetaAndTitle AdminLinks AJAXPoll AntiSpoof AuthorProtect Babel BetaFeatures BlogPage CategoryTree CentralAuth CharInsert CheckUser Cite CiteThisPage cldr CodeEditor CollapsibleVector Comments ConfirmEdit ContactPage ContentTranslation CookieWarning CreateWiki CSS CustomData CustomNavBlocks Disambiguator DPLForum DynamicPageList Echo Editcount EmbedVideo FancyBoxThumbs FeaturedFeeds Flow Gadgets GlobalBlocking GlobalCssJs googleAnalytics HeaderTabs HighlightLinksInCategory ImageMap InputBox Interwiki JavascriptSlideshow Josa LabeledSectionTransclusion LinkSuggest Loops Maps MassEditRegex MassMessage Math MirahezeMagic MobileFrontend MsCalendar MsCatSelect MsLinks MsUpload MultiBoilerplate MultimediaViewer MultiUpload MwEmbedSupport NativeSvgHandler NewestPages NewUserMessage NoTitle Nuke OAuth OpenGraphMeta PageImages PageNotice PageTriage ParserFunctions PDFEmbed Poem Poll Popups RandomSelection RelatedArticles Renameuser ReplaceText RSS SandboxLink ScratchBlocks Scribunto SectionHide SimpleTooltip SiteMatrix SocialProfile SpamBlacklist SubpageFun SubPageList3 SyntaxHighlight_GeSHi Tabber Tabs TemplateData TemplateSandbox TextExtracts Thanks TimedMediaHandler Timeline TitleBlacklist TitleKey Translate UniversalLanguageSelector UrlShortener Variables VisualEditor VoteNY WebChat Widgets Wikibase WikiEditor WikiForum WikiLove YouTube Collected from /srv/mediawiki/w/extensions using "ls -1"