Good day to all. I help answer questions on the Mozilla Firefox support forum.
There is a user having a problem with this login page; https://itpro.tv/login/
The login button remains unavailable to press after the username and password are submitted.
I did some experimenting and found something strange.
I am using Adblock Plus and Adblock Plus Pop-up Addon
If I use Adblock Plus alone, there is no problem.
But when Adblock Plus Pop-up Addon is active, the password button will not work.
User's question; https://support.mozilla.org/en-US/questions/1155598
I tried using Adblock settings to allow the site, allow the page, and even to disable everywhere. The password button is still blocked.
Login Page Blocked
Re: Login Page Blocked
"Adblock Plus Pop-up Addon" - despite the name - has nothing in common with ABP (as I can see was removed from mozilla store). Just remove it (you said that using only ABP there is no issue).