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    MDN Docs Guide to Bugzilla products and components

    Moved to https://developer.mozilla.org/en-US/docs/Project:Finding_the_right_place_to_document_bugs

    Bugzilla is big. Really really big. MDN is big too. This page helps to put two big things together. It:

    • Lists Bugzilla "products" that are documented on MDN
    • Describes the components within each product (component descriptions were copied / summarized from Bugzilla)
    • Maps products and components to MDN project names (ie, "Open Web")
    • Indicates the priority for MDN documentation for products and components
    • Tries to help new contributors address documentation issues (flagged using the dev-doc-wanted keyword in Bugzilla) in MDN
    • When possible, components are linked to the appropriate area of MDN, to help you find the right place to add your documentation

    Bugzilla changes over time as new products and components are added. MDN priorities change as well. If you see something wrong or missing, please add it!

    Add-on SDK

    The software development kit for building Firefox add-ons.

    Note: At this time, the add-on SDK is not documented on MDN. This will change sometime in late 2012 or early 2013. For now, add-on SDK documentation is maintained in the add-on SDK github repository.

    Component Description MDN Priority
    Documentation Issues with the SDK's built-in documentation  
    General Other bugs  

    Firefox OS

    Mozilla's mobile operating system built on web standards.

    Component Description MDN Priority
    Builds Device or desktop build packaging or automation Medium
    Gaia (and sub-components) Firefox OS user interface and apps High
    General Bugs that are not more specifically Gecko or Gaia bugs. Medium
    Hardware Submit bugs to request hardware Do not document

    Core

    Shared components used by Firefox and other Mozilla software, including handling of Web content (HTML, CSS, scripts, images, networking, etc.).

    Note: Although listed and managed as a product, this is technically a component.

    Component Description MDN Priority
    Build Config Core build config issues Low
    Canvas: 2D HTML5 <canvas> element, its XUL sibling, and related rendering contexts High
    Canvas: WebGL WebGL canvas context High
    Disability Access APIs Support for accessibility APIs on the various platforms Medium
    Document Navigation "docshell"; the glue that initiates and monitors document loading and associates documents to their view for rendering Medium
    DOM (and sub-components) The web Document Object Model implementation of Gecko. High
    Drag and Drop Drag and drop functionality anywhere in the applications Medium
    Editor Midas, Mozilla's embeddable editor. Low
    Embedding (and sub-components) APIs, GRE Core, Mac, MFC Embed, Packaging Low
    Event Handling Keyboard typing, mouse actions, focus changes, and other event handling High
    File Handling Helper applications, and guessing Content Types when they aren't specified/known Low
    Find Backend   Low
    Gecko Profiler Backend to the built-in profiler Low
    General Bugs in Core which do not fit into other more specific Core components Varies
    Geolocation Geolocation API and framework High
    GFX: Color Management qcms and other issues relating to Mozilla's color management implementation Low
    Graphics
    Mapping of cross platform rendering interfaces to Cairo APIs
    Low
    Graphics: Layers Graphics subsystem that implements hardware-accelerated (and software) composition of layers of content Medium
    Graphics: Text
    Text and font support in Gecko, including text shaping and font selection
    High
    Hardware Abstraction Layer (HAL) Hardware Abstraction Layer (HAL) code regardless of the backend Low
    History: Global All URLs that a user has visited; history window and link coloring Medium
    HTML: Form Submission HTML form submission Medium
    HTML: Parser consumes content from the web, parses, validates and builds a content model (document) Low
    Identity Persona / BrowserID Gecko and Firefox integration High
    Image Blocking (un)blocking images from servers Low
    ImageLib decodes GIF, JPEG and PNG images, and provides the decoded data to the Compositor for display Medium
    Installer: XPInstall Enging bugs in the underlying cross-platform installation technology Low
    Internationalization issues in supporting multiple locales High
    IPC inter-process communication mechanism used to isolate plugins and content in separate processes Low
    Java to XPCOM Bridge interoperability between XPCOM components and Java objects Do not document
    JavaScript engine The SpiderMonkey JavaScript interpreter engine for the core JavaScript language, independent of the browser's object model Low
    jemalloc malloc implementation Low
    js-ctypes js-ctypes is a FFI (Foreign Function Interface) component for JS/XPCOM; this lets JavaScript code run code written in C High
    Keyboard: Navigation Keyboard shortcuts, access keys/accelerators, and navigation by using the keyboard Low
    Layout (and sub-categories) placement of HTML / CSS components Low
    Localization internationalization Medium
    mach "mach" command-line tool Low
    MathML Mathematical Markup Language Low
    MFBT Headers, macros, data structures, methods, and other functionality which should be available to SpiderMonkey and to all Gecko code, implemented in the mfbt/ source directory Medium
    mozglue Issues in the Android glue, the custom dynamic linker or other parts of the mozglue library Low
    Nanojit JIT compiler infrastructure Low
    Networking (and sub-categories) Modular networking library (aka "Netlib" or "Necko") Medium
    Plug-ins Core Mozilla code that supports registering and using plug-ins High
    Preferences: Backend libPref, the backend library that reads, parses, and writes preferences to the user's hard disk Low
    Print Preview Print Preview rendering problems Low
    Printing: Output printing Low
    Printing: Setup OS printing system, including cross-platform components such as the page setup dialog Low
    Profile: BackEnd creation, deletion and changing of user profiles during the installation process Low
    Profile: Migration conversion of profiles from previous versions Low
    Profile: Roaming Profile Roaming support Low
    Quicklaunch QuickLaunch installer option and preference Low
    RDF Resource Description Framework: Core RDF components, including the in-memory datasource, composite datasource, RDF/XML parser, and RDF resource manager Low
    Rewriting and Analysis static analysis and rewriting tools Low
    Security (and sub-components) CAPS, S/MIME, etc High
    Selection The user action of selecting all or part of a document and highlighting the selected content Medium
    Serializers Conversion to HTML or plaintext, either during saving or during copy/paste Low
    Spelling checker Spelling checker Low
    SQL SQL support Medium
    String Hierarchy of classes related to managing character sequences Low
    Style System (CSS) Handling of CSS stylesheets and the computation of style from CSS stylesheets and HTML attributes High
    SVG The implementation of Scalable Vector Graphics (SVG) Medium
    Tracking Bugs used to track a group of bugs Do not document
    Video / Audio HTML 5 media elements (<video> and <audio>) and the codec implementations for them (Vorbis, Theora, etc) High
    Web Services Using SOAP and WSDL to call Web Services from scripts Low
    WebDAV Web Distributed Authoring and Versioning protocol support Low
    WebRTC (and sub-components) Bugs related to the implementation of the WebRTC (Real Time Communication) standard High
    Widget (and sub-components) Cross platform widget interfaces and cross platform base implementations Medium
    X-remote X-Remote Client and Server Low
    XBL Extensible Binding Language, used to bind new behavior and new content to XUL and HTML elements Low
    XForms XForms issues including parsing, data model, form controls, and submission Low
    XML Bugs in our XML handling Low
    XP Toolkit/Widgets: Menus Bugs in the cross-platform menu infrastructure Low
    XP Toolkit/Widgets: XUL Bugs in the XUL language Low
    XPCOM Component technology Medium
    XPConnect Facilitates calling between JavaScript and XPCOM components Medium
    XSLT Bugs on Mozilla's XSLT support Low
    XTF eXtensible Tag Framework Low
    XUL XML schema for cross-platform application programming Medium

    Firefox

    Mozilla's web browser.

    Component Description MDN Priority
    Bookmarks & History Bookmarks and history Medium
    Build Config Build and configuration setup Low
    Developer Tools (and sub-components) Developer tools within the Firefox web browser High
    Disability Access Accessibility compliance Medium
    Downloads Panel Issues with the Downloads Panel Low
    Extension Compatibility Version level or extension problems or Gecko problems that cause extensions not to work. High
    File Handling issues dealing with helper applications and guessing Content Types when they aren't specified/known Low
    General bugs in Firefox which do not fit into other more specific Firefox components Varies
    Help Documentation Documentation for end users Do not document (on MDN)
    Installer Application install wizard Low
    Keyboard Navigation
    Keyboard shortcut navigation in Firefox's user interface
     
    Location Bar "Smart Location Bar" UI element  
    Menus Firefox menus  
    Microsummaries Obsolete and deprecated Low
    Migration Profile Migration from other browsers  
    Page Info Page Info window  
    Panorama Panorama (formerly known as TabCandy)  
    PDF Viewer built-in PDF viewing capabilities  
    Phishing Protection Phishing protection UI and service Medium
    Preferences Tools->Options UI as well as the preference defaults High
    Private Browsing Private Browsing implementation Medium
    RSS Discovery and Preview Discovery of RSS feeds and inline preview Low
    Search Internet search from the Toolbar Search field  
    Security App-level security bugs High
    Session Restore Session restore functionality, including the undo close tab feature Low
    Shell Integration Integration with the host desktop environment  
    SocialAPI UI and platform work to integrate the social experience into Firefox High
    Tabbed Browser Browser tab features or problems with the widget itself  
    Theme Enhancements or changes to the default theme that ships with Firefox  
    Toolbars Toolbars, toolbar customization  
    Untriaged Newly filed uncategorized bugs Varies
    Web Apps Web Apps integration in Firefox  
    Webapp Runtime Webapp runtime (stub executable launcher, XUL shell)  
    WinQual Reports WinQual crash/hang data  

    Firefox for Android

    The mobile version of Firefox (also known by its code name, "Fennec").

    Component Description MDN Priority
    Add-on Manager extensions, search plugins, and other add-ons  
    Awesomescreen main user interface  
    Data Providers databases and content providers that handle storage and import/export of profile data  
    Download Manager user interface for downloading  
    Evangelism bugs that require support from Evangelism team  
    General bugs that do not fit into other categories  
    Graphics, Panning and Zooming Android-specific code for fast painting, scrolling, and scaling of pages on the screen  
    Keyboards and IME Android text input  
    Plugins content that uses the Adobe Flash Player plug-in for Android  
    Reader Mode interface for the user's Reading List  
    Text Selection touch gestures and draggable handles for selecting and copying text  
    Theme and Visual Design images, colors, and general look and feel  
    Web Apps installing, running, and managing open web applications  

    Web Apps

    Web Apps are applications that run on any device, and can be distributed through any store or directly by the developer.

    Component Description MDN Priority
    AppsInTheCloud syncing apps between Android / Mac / Windows devices  
    Dashboard view and launch currently installed apps  
    Extension access and install apps  
    General issues that don't fit in another category  
    HTML html / javascript implementation of the web apps platform  
    Infrastructure infrastructure required to support WebApps project  
    Soup Android application to access, and install applications from the marketplace  

     

    Document Tags and Contributors

    Contributors to this page: Sheppy
    Last updated by: Sheppy,