Merge branch 'jb48786' into 'master'

[embedlite-components] Don't load gecko addons at startup. Contributes to JB#48786

See merge request mer-core/embedlite-components!48

jsscripts/embedhelper.js

@@ -8,7 +8,6 @@ let { classes: Cc, interfaces: Ci, results: Cr, utils: Cu }  = Components;
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/Geometry.jsm");
-Cu.import("resource://gre/modules/AddonManager.jsm");
 Cu.import("resource://gre/modules/FileUtils.jsm");
 
 let HTMLSelectElement = Ci.nsIDOMHTMLSelectElement;