Rated 5 out of 5 stars
THANK YOU very, very much, LeeToo.
What he said is true:
"It's very simple to get work this extension for firefox 38.x!" -- 40.0.2 now.
Find inside your system partition the installed add-on "firstname.lastname@example.org"
Now copy it to (e.g.) your desktop and open it with 7-zip program. Find the item "ELDumperOutput.js"
That's the path: \email@example.com\chrome\chromeFiles\content\ELDumperOutput.js
Right click over it and hit Edit
Find the line:
var XPIProvider = Components.utils.import("resource://gre/modules/XPIProvider.jsm")
and chang it to:
var XPIProvider = Components.utils.import("resource://gre/modules/addons/XPIProvider.jsm")
Save the modification and install the add-on. Just choose to open it with FFox -- or drag and drop it to the browser.
That's it, the list now is there for copying or saving.