I have been using mozilla for such a long time and i think this is how the journey ends. Hasta la vista !!! You will be remembered :’(
I guess FIREFOX or someone really wanted us to see a few ads until they say that they have fixed the issue!! Unbelievable!
Too late Mozilla, already switched to Vivaldi.
Apparently not because I’m having the same issues one month later !
What version of Firefox are you running? You should be able to install and enable extensions in Firefox 66.0.5 and later without having to take other action.
https://www.jeffersonscher.com/ffu/armagadd-on_2_0.html
Whoops, I see you have a new thread here: Add-On downloads aren't working