When I fill in any field of text (including, but limited to the url bar, the search function and text things on websites), close them and then try to type something in it again or change something, it will copy the text I filled in or something. So if I type "test", close it and restart it again, it changes to "texttext" and I can't get rid of it, when I try it will just add the word again. This also happens in the url bar, if I try to get rid of the url. Is this a well-known problem for firefox mobile or am I the only one experiencing it? And, is there something I can do to change it?