Thunderbird button X not working

Until recently I used X-notifier in thunderbird and worked very good. A few days ago the addin stoped cheking for gmail mails (I only have 1 account) and the button X in toolbar stop working. When right click show a few options but they dont do anything. I've unninstaled the addin and reinstaled a few times, removed the gmail acount configured, clear cookies and stil the same. The only way I can configure accounts is using the options on addin tab.

Any ideias? How can I clear all the X-notifier configs on thunderbird, like files and registry options?

First idea, make sure when you right click on the X-Notifier orange 'X', that "Enable" has a checkmark just to the left of it in the pop-up menu.

Also... open browser, open new tab, go to gmail.com, and make sure you can get to your account and inbox without any other pop-up prompts or notifications which might get in the way of logging in/checking email by X-Notifier.  Answer any prompts, etc., so they go away.