Topic: At switching of tabs focus passes in an address line of a browser

Greetings, one month ago at me in a browser (Chrome) such hogwash began to happen - when switch between tabs input focus can pass itself in an address line of a browser. If did not note it and started to print, for example, the gap pushed to fan a page downwards, that, accordingly, is edited the address in an address line - very inconveniently. Before such was not. Than it can be caused? Somebody faced it? I will be grateful for any councils!