Hi, this is completely unrelated to the "Move Active Tab to Last" add-on, but I didn't manage to find another way to contact you (sorry about that).

At the bottom of your "Firefox Bookmark Backup Reader/Decompressor" page (https:// www.jeffersonscher.com/ffu/bookbackreader.html) there's a tool to save the bookmark backup as a tab-separated list.
I think I've found a bug there: the generated list doesn't contain the "Icon_URI" info even if the "Favicon URL" checbox is checked.
I tried the tool in Firefox 151.0.2 on bookmark backups created with it.

thank you for creating this great addon.Works gr8.
Dose what its suppose to ......