component {49507fe5-2cee-4824-b6a3-e999150ce9b8} DownloadsStartup.js contract @mozilla.org/browser/downloadsstartup;1 {49507fe5-2cee-4824-b6a3-e999150ce9b8} category profile-after-change DownloadsStartup @mozilla.org/browser/downloadsstartup;1 component {4d99321e-d156-455b-81f7-e7aa2308134f} DownloadsUI.js