hello, sorry but it's not possible to provide support fur such an outdated version which has reached its end of life years ago...

Please install Firefox 19.0.2 from www.getfirefox.com.

Problem isn't solved but I understand we need to update the browser. Thanks, please no more replies.

Using a browser version that old is not safe at all, and bad for the web. Once you update if you are still getting a crash, please come back and give us the crash ID.