Moz-extension showing up at the address bar when shifting from website A to B

[Nurmagoz]

Type: Extension Issue

When browsing websites using FF,TB when i go lets say from DuckDuckGo search engine to x website inbetween the transaction of switching from DDG to the x website this will show up: (Extension Manifest URL at the address bar)

~~(Sorry i couldnt copy the URL i barely took this screenshot with the error inside it before disappearing)~~

Here is the full picture i found it in about:debugging#/runtime/this-firefox (thanks to firefox addon support)

Extension ID
[email protected]

Internal UUID
068f66f4-8ce3-4f25-8959-d1726c894e5b

Manifest URL
moz-extension://068f66f4-8ce3-4f25-8959-d1726c894e5b/manifest.json

ThX!