It is difficult to sign in

I have an ad blogger running in this Firefox bowser. It blocks one cookie note on this site. When that is blocked, I cannot log in. I had to stop the blocker to login.

LMI1:
I have an ad blogger running in this Firefox bowser. It blocks one cookie note on this site. When that is blocked, I cannot log in. I had to stop the blocker to login.

I use FF with NoScript, uBlock & Privacy Badger and if you setup NoScript properly for this site you can login without having to turn anything off.

I'm using adblock-plus and noscript in Firefox and I have no issues logging in.

So which ad blogger (?) are you using.

Simply BLOCK "ads.supplyframe.com"
That is the only thing I have "blocked"

Anything else at the moment should be allowed but if I ever find other things be assured I will let people know in this section.

EDIT.
These should all be allowed.

auth.arduino.cc
cdn.arduino.cc
accounts.google.com

smartlock.google.com
ssl.gstatic.com
code.jquery.com
consent.trustarc.com

@ballscrewbob

This is what I have allowed to be able to visit and post (firefox browser on Win10)

arduino.cc
google.com
gstatic.com
code.jquery.com
ajax.googleapis.com

google.com might not be needed

Google is just there for those who use google credentials.
You are correct that not everyone needs that.