Helper for Google Translate. eftir y4v8

After a short press of the Ctrl key, you switch to the window(tab) of Google Translate.
If the selected text exists and the window(tab) of Google Translate already exists, the text is copied into Google Translate.
If a window(tab) with Google Translate is not found, just a new tab is opened.

When you press Ctrl on the Google Translate page, you return to the previous page.

* The duration of a short press of up to 250 milliseconds, that made for case you want to press a combination, for example Ctrl+S, but after having pressed Ctrl you changed your intentions.
* The tab of Google Translate move behind the current tab.
* Working with a private window is more convenient - the actions do not put into the history and the window can be placed on the second monitor.
* For convenience, after switching to the Google Translate, the focus moves to the editable area.

! The extension does not work on the following sites - addons.mozilla.org (for security reasons), docs.google.com (there is no possibility to get the selected text) and others, similar to docs.google.com.