Changes

**[https://bugzilla.mozilla.org/buglist.cgi?f1=flagtypes.name&o1=anywords&resolution=---&query_format=advanced&v1=blocking-webextensions%2B&list_id=12737558 web extensions target for Fx48]**[https://bugzilla.mozilla.org/buglist.cgi?f1=status_whiteboard&list_id=12810463&o1=substring&resolution=---&query_format=advanced&v1=triaged&component=WebExtensions&product=Toolkit Triaged bugs] ***under Toolkit::webextensions in bugzilla***have '''triaged''' at the end of the Whiteboard***'''blocking-webextensions''' flag has been set if a milestone 48 target)**[https://bugzilla.mozilla.org/buglist.cgi?f1=status_whiteboard&list_id=12810465&o1=notsubstring&resolution=---&query_format=advanced&v1=triaged&component=WebExtensions&product=Toolkit Untriaged webextension bugs]