help mod_jfbclogin_j1.5_v3.1.1

Facebook used to have options which let you specify the length and size of the login button, but those options appear missing from their configurator:
developers.facebook.com/docs/reference/plugins/login/

If you want to try the old method to see if it works, I'd suggest doing the following. In the /components/com_jfbconnect/libraries/facebook.php file, at line 316, you'll see the a line that has <fb:login-button... in it. Add the following parameters for length and size:
return '<fb:login-button v="2" size="large" length="long" ...

Leave the rest intact. Let us know how that goes. There isn't a way that I know of to extend the button to the length of the div it's in, so that the blue extends past the wording, but hopefully the length="long" will get it far enough for you.

Yeah, unfortunately, there's only so much we can do to modify the look of the button. Facebook only allows us to modify the looks so much because of branding reasons. We'll let you know if we find something different that may work for you.

Thanks!