> you cannot set a locally-hosted newtab page any longer You can still set it with firefox.cfg, it's not not documented anywhere, and will break sometime in th

> you cannot set a locally-hosted newtab page any longer You can still set it with firefox.cfg, it's not not documented anywhere, and will break sometime in the future var {classes:Cc,interfaces:Ci,utils:Cu} = Components; var customNewTabURL = "file:///C:/File/Path/Here.html"; Cu.import('resource:///modules/AboutNewTab.jsm'); AboutNewTab.newTabURL = customNewTabURL;