Comment 5 for bug 1019701

Linux Mint 13 MATE 64 edition

Confirming what others have indicated, and adding that it is not just Firefox as the same thing happens if the Welcome screen opens Opera as the browser for the web page selected. Web page opens fine, but the Welcome screen close button (and check box) will not work until the browser is shut down. Then both browser window and Welcome screen shut down. So it appears that the click on the close button is recognized, just not executed.

 Also, the uncloseable Welcome screen rides on top of the open browser window making it difficult if not impossible to read the web page you have selected.

Low priority annoyance, but it might be a quick fix.