"Please login to Twitter"

[printAlvinXu]

I'm already logged into Twitter, and "unfollow" and "delete retweet/tweet" doesn't show up

[thomas-ashcraft]

Giveaway Helper Error: You must be logged into twitter.com

Confirmed.
Tried to logout-login into twitter.
Tried to delete every twitter related cookies.
Didn't helped.

[Citrinate]

Twitter made some security changes which prevent the script from operating in the way it did. There's no quick and easy fix to this issue. The only way forward is to use the Twitter API, which means building a back end for the API requests to go through.