Select a component to see open bugs in that component:
Bugs for the development of our application servers for activity streams including our metrics collection front-ends (onyx), our content management system (splice) and our data processing rules (infernyx)
General Activity Streams bugs
Bugs for the newtab page activity streams implementation
Bugs for server infrastructure supporting our application servers for activity streams
Bugs for the Timeline page activity streams implementation
For bugs in the Firefox "Smart Location Bar" (aka Awesome Bar) UI element, including the bookmark and history autocomplete matching behavior.
Bugs and feature requests for Firefox bookmarks & history. This includes the bookmarks menu, add and modify bookmarks dialogs and the bookmarks manager.
Bugs and feature requests for the Firefox UI to give or revoke web page permissions to access devices (camera, microphone, screen share, …).
Accessibility-related bugs in Firefox: screen readers, support for magnifier tools, user interface bugs affecting the experience of people with disabilities, compliance with national and international accessibility standards.
Bugs related to the creation of desktop distributions (distribution.ini)
For issues with the Downloads Panel, the new download manager of Firefox that lives in the navigation toolbar.
Bugs and feature requests related to specific policies implemented in Firefox, or to the policy engine itself. Bugs about Group Policy Object (GPO) should be reported in this component.
Version level or extension problems or Gecko problems that cause extensions not to work. Also home to INVALID bugs where a malfunctioning extension has broken Firefox.
For issues dealing with helper applications, and guessing Content Types when they aren't specified/known (ftp:, file:, jar:, but generally not http:). This component does not cover: backend networking issues, such as those covered by Networking: FTP or Networking: File, nor does it cover the Download Manager which has its own component in the Toolkit product.
For bugs in shared services/fxaccounts code related to Firefox accounts
Bugs related to the Firefox Monitor (a.k.a Breach Alerts) feature
For bugs in Firefox which do not fit into other more specific Firefox components
For bugs related to headless browsing mode where Firefox is a web browser without a Graphical User Interface (GUI).
Bugs and feature requests for the Firefox application install wizard.
Bugs and feature requests for Firefox menus. This includes toplevel and context menus.
Firefox messaging system
Firefox Profile Migration from other browsers.
The page displayed when a new tab is opened (about:newtab).
In-browser component that validates and executes actions in a sandbox
Web service to store and serve recipes
For issues with the Page Info window.
For bugs related to Firefox's built-in PDF viewing capabilities (also known as pdf.js).
Bugs involving the integration with Pocket and Firefox.
Bugs and feature requests for Firefox preferences. This includes the Tools->Options UI as well as the preference defaults.
For bugs and feature requests in Firefox's Private Browsing implementation.
Module in charge of fetching and keeping remote settings in sync with Mozilla servers.
For Firefox Screenshots system add-on bugs related to security and release tracking. Please file other bugs under https://github.com/mozilla-services/screenshots/issues. Non-security or release management bugs filed here will be closed as incomplete and moved to GitHub Issues
Web search UI, default search engines and Toolkit's search service. Find-in-page bugs belong in Toolkit::Find Toolbar instead.
For app-level security bugs.
If the problem relates to underlying components (PSM, NSS, Core, Toolkit) then please file it in the appropriate product instead of here.
Task queue for the Platform Integrity Security Team
For bugs in Firefox's session restore functionality, including the undo close tab feature.
This component is responsible for determining if Firefox is the default browser, setting Firefox as the default browser, and setting the desktop background.
For issues relating to the site identity block in the location bar, site information panel (also known as "Control Center"), and prompts from sites that require additional permissions (such as geolocation, camera, and microphone).
Contains bugs related to Firefox accounts-based Sync UI. Bugs in the Sync back-ends should be tracked in Cloud Services::Firefox: Sync Back-end
Requests to ship a system add-on off-train through Go Faster (Balrog) (more info).
For problems in the browser tab features or problems with the widget itself.
General user interface, user experience, and visual design for the default theme used in Firefox.
Bugs and feature requests for Firefox toolbars. This includes toolbar customization.
UITour, firstrun and whatsnew Firefox bugs.
For bugs and feature requests in Firefox's Tracking Protection feature.
Instant translation and language detection in Firefox.
For newly filed bugs that need some help finding the right place to go.