For bugs in Firefox Desktop, the Mozilla Foundation's web browser. For Firefox user interface issues in menus, developer tools, bookmarks, location bar, and preferences. Many Firefox bugs will either be filed here or in the Core product. (more info)
Bug 1040931 extended nsIBrowserSearchService.addEngineWithDetails() to take an extensionID for when add-ons add search engines and a test for reading and writing from and to search.json. We should do the same for XML.