addon opens https: //mybook.pdf/, instead of searching mybook.pdf in the search engine

When I choose the setting "New tab" or "URL to search" it is NOT saved when I whether come back to about:addons nor if I do anything else: it is not setted or recorded.
Configs are always lost, no matter what I do: it is never saved (Firefox 102).
This problem does not occur with any other extension...
I would give you 5 stars when this addon will be applicable

I really thought Paste and Go would be great but don't seem to make it work?
Firefox, 94.0.1, in Windows 10

1. Paste and Go -- Version 1.2.3, Updated October 29, 2021

2. Paste and Go Options
New tab in Foreground
Control Shift V
Use Search
https://www.isthiscredible.com/?url=%s



-------------------- I'm confused as to what to do.

A) Is the best way to respond to the Nov. 19 "Developer response" to just add top my initial review?

B) Is there a better way to get IsThisCredible.com evaluation of an article to work to:
B.1) Move to the start of the 'Ctrl-L URL field', and Manually Paste https://www.isthiscredible.com/?url= at the beginning of the page that shows the Article's URL, e.g. before
B.2) Hit
b.3) Get the article's Credibly rating.

Thus the resulting URL is, for example,
https://www.isthiscredible.com/?url=https://prospect.org/power/amazons-attack-on-womens-health/#new_tab
and sequence "B)" does give the correct result.

C) What I would like to do is set the "Paste and Go Key" options so that the extension would:
C.1) Copy the current URL in the "Ctrl-L URL field",
C.2) Paste the contents of the "Search URL" field at the start if this copied URL produces the 'Resulting URL."
C.3) Then use this to get the result Credibility.

D) As I noted the "Paste and Go Key" does not do this, and in fact ONLY pastes the last item Copied, does not consistantly take the "Search URL", nor create a new tab

E) Also, get it so that the Control-Shift-V or other "Paste shortcut" also does "C)"

Vuena